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MTD Lawn Mower Parts 1991
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MTD Lawn Mower Replacement  For Model 121-898R401 (1991)

MTD Lawn Mower Replacement Parts For Model 121-898R401 (1991)

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Page A
MTD 121-898R401 (1991) Lawn Mower Page A Diagram
 Fig #
A1
Screw-hex
 $6.28

Part Number:710-1062

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $6.28
Usually ships in 7 - 12 business days
 $6.28
A2
Washer-lock
Minimum Quantity of 2 Required
 $5.57

Part Number:936-0329

In Stock

In Stock

Note: (for Model E633e)
 $5.57
In Stock
 $5.57
A3
Upper Hsg Hf Obsolete - Not Available
 $90.76

Part Number:717-0418A

Discontinued

Discontinued
 $90.76
Discontinued
A4
#48 Sprocket 7 Tooth X 1/2 Pitch Obsolete - Not Available
 $4.99

Part Number:713-0400

Discontinued

Discontinued
 $4.99
Discontinued
A5
Washer-fl
Minimum Quantity of 2 Required
 $4.49

Part Number:936-0336

In Stock

In Stock

Note: Use Applicable Flat Washers in This Application Allowing .006/.014 In. End-Play.
 $4.49
In Stock
 $4.49
A6
Bearing-hex Flange
 $10.48

Part Number:941-0413

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $10.48
Usually ships in 7 - 12 business days
 $10.48
A7
Bearing-cup Hex Obsolete - Not Available
 $9.50

Part Number:16500A-0637

Discontinued

Discontinued

Note: Part of Transmission Complete, Ref. No. 36.
 $9.50
Discontinued
A8
Thrust Wash. .382" I.d. X
 $6.49

Part Number:736-0314

In Stock

In Stock
 $6.49
In Stock
 $6.49
A9
Bearing-thrust
 $14.21

Part Number:741-0479

In Stock

In Stock

Note: Part of Transmission Complete, Ref. No. 36.
 $14.21
In Stock
 $14.21
A11
Shaft-pinion 11 T Obsolete - Not Available
 $33.26

Part Number:917-1216

Discontinued

Discontinued

Note: Part of Transmission Complete, Ref. No. 36.
 $33.26
Discontinued
A12
Bearing-flange
 $5.60

Part Number:748-0208A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $5.60
Usually ships in 7 - 12 business days
 $5.60
A13
Seal-oil-.375 Id Obsolete - Not Available
 $9.72

Part Number:721-0212

Discontinued

Discontinued

Note: Part of Transmission Complete, Ref. No. 36.
 $9.72
Discontinued
A15
Pulley Obsolete - Not Available
 $30.64

Part Number:756-0330A

Discontinued

Discontinued

Note: Not Part of Transmission Complete - Not part of transmission complete
 $30.64
Discontinued
A16
Washer-spring Bell
Minimum Quantity of 2 Required
 $4.18

Part Number:736-0270

In Stock

In Stock

Note: If Equipped - Not part of transmission complete
 $4.18
In Stock
 $4.18
A17
Nut-jam 1/4-28 Lh
 $18.69

Part Number:712-04326

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not part of transmission complete
 $18.69
Usually ships in 7 - 12 business days
 $18.69
A18
Spacer-shld
 $6.28

Part Number:738-0440

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not part of transmission complete
 $6.28
Usually ships in 7 - 12 business days
 $6.28
A19
Washer, Flat, .385 X 1.0 X .03
Minimum Quantity of 2 Required
 $4.76

Part Number:736-0344

In Stock

In Stock

Note: Not Part of Transmission Complete - Not part of transmission complete
 $4.76
In Stock
 $4.76
A20
Screw-shld
 $15.83

Part Number:938-0826

In Stock

In Stock

Note: Not Part of Transmission Complete - Not part of transmission complete
 $15.83
In Stock
 $15.83
A21
Pulley
 $12.75

Part Number:956-0558

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not part of transmission complete
 $12.75
Usually ships in 7 - 12 business days
 $12.75
A22
Use 941-0556
 $18.26

Part Number:741-0556

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not part of transmission complete
 $18.26
Usually ships in 7 - 12 business days
 $18.26
A23
Washer-spring Bell
Minimum Quantity of 2 Required
 $4.18

Part Number:736-0270

In Stock

In Stock

Note: If Equipped - Not part of transmission complete
 $4.18
In Stock
 $4.18
A24
Bracket Assy-idler Obsolete - Not Available
 $30.51

Part Number:17052A

Discontinued

Discontinued

Note: Not Part of Transmission Complete - Not part of transmission complete
 $30.51
Discontinued
A25
Hex Patch L-nut 1/4-28 Thd
 $6.03

Part Number:712-0138

In Stock

In Stock

Note: (Not Part of Transmission Complete) - Not part of transmission complete
 $6.03
In Stock
 $6.03
A26
Extension Spring 1.12
Minimum Quantity of 2 Required
 $3.99

Part Number:732-0357A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part Not Part of Transmission Complete - Not part of transmission complete
 $3.99
Usually ships in 7 - 12 business days
 $3.99
A27
Lower Hsg. Half
 $34.90

Part Number:717-0419B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $34.90
Usually ships in 7 - 12 business days
 $34.90
A28
Bearing-flange
 $10.57

Part Number:941-0415

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $10.57
Usually ships in 7 - 12 business days
 $10.57
A29
Shaft Assembly W Obsolete - Not Available
 $141.85

Part Number:717-0616A

Discontinued

Discontinued
 $141.85
Discontinued
A30
Bearing-flange
 $13.41

Part Number:741-0414

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $13.41
Usually ships in 7 - 12 business days
 $13.41
A31
Seal-oil
 $11.44

Part Number:721-0213

In Stock

In Stock

Note: Part of Transmission Complete, Ref. No. 36.
 $11.44
In Stock
 $11.44
A32
Shaft Assembly W Obsolete - Not Available
 $141.85

Part Number:717-0616A

Discontinued

Discontinued
 $141.85
Discontinued
A33
Washer-lock #10 Obsolete - Not Available
 $6.69

Part Number:936-0722

Discontinued

Discontinued

Note: Part of Transmission Complete, Ref. No. 36.
 $6.69
Discontinued
A34
Screw-hex Wash Hd
 $3.99

Part Number:710-0651

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $3.99
Usually ships in 7 - 12 business days
 $3.99
A35
Washer-hex Obsolete - Not Available
 $3.99

Part Number:936-0410

Discontinued

Discontinued

Note: Not Part of Transmission Complete - Not part of transmission complete
 $3.99
Discontinued
A
Transmission-comp Obsolete - Not Available
 $239.49

Part Number:917-0417B

Discontinued

Discontinued

Note: (See Breakdown)
 $239.49
Discontinued
Page B
MTD 121-898R401 (1991) Lawn Mower Page B Diagram
 Fig #
B1
Foam Grip - 9
 $9.14

Part Number:720-0294A

In Stock

In Stock

Note: (2 Required)
 $9.14
In Stock
 $9.14
B2
Control Handle Ass'y. L.H. Obsolete - Not Available
 $20.05

Part Number:731-0609

Discontinued

Discontinued
 $20.05
Discontinued
B3
Rope-guide Eyebolt
Minimum Quantity of 2 Required
 $4.07

Part Number:710-1205

In Stock

In Stock

Note: (Model 959 Only)
 $4.07
In Stock
 $4.07
B4
Screw-truss Mach
 $6.78

Part Number:710-0796

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Parts)
 $6.78
Usually ships in 7 - 12 business days
 $6.78
B5
Chute Assy Black Obsolete - Not Available
 $60.41

Part Number:731-1023

Discontinued

Discontinued

Note: (Rear Discharge Models 836r, 836r 837r & 838r Only)
 $60.41
Discontinued
B6
Insert-3 Tooth Rac
 $6.43

Part Number:913-0397

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Incl. Ref. 173)
 $6.43
Usually ships in 7 - 12 business days
 $6.43
B7
Control Panel Half Obsolete - Not Available
 $11.83

Part Number:731-0817A

Discontinued

Discontinued
 $11.83
Discontinued
B8
Control Disc Pin Obsolete - Not Available
 $4.99

Part Number:931-0524

Discontinued

Discontinued
 $4.99
Discontinued
B9
Clutch Panel Half Obsolete - Not Available
 $2.99

Part Number:731-0818

Discontinued

Discontinued
 $2.99
Discontinued
B10
Lever-throttle Con
 $10.18

Part Number:931-0972

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Attaching Throttle Wire to Lever Modles 466r, 469r, 476r and 479r: Use Upper Hole in Lever as Shown. All Other Models: Use Lowe
 $10.18
Usually ships in 7 - 12 business days
 $10.18
B11
Hub Cap-beige
 $13.76

Part Number:731-0982C

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Optional
 $13.76
Usually ships in 7 - 12 business days
 $13.76
B12
Truss Screw 1/4-20 X .65
 $3.99

Part Number:710-0946

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Rear Discharge Models 836r, 836r 837r & 838r Only)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B14
Handle-upper Short
 $58.98

Part Number:749-0439E-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Incl. Ref. No. 9)
 $58.98
Usually ships in 7 - 12 business days
 $58.98
B15
Bracket-panel Sup
 $11.19

Part Number:16129A-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Parts)
 $11.19
Usually ships in 7 - 12 business days
 $11.19
B16
Panel Assy-catcher Obsolete - Not Available
 $46.24

Part Number:16862

Discontinued

Discontinued
 $46.24
Discontinued
B17
Door-top Discharge Obsolete - Not Available
 $14.65

Part Number:17095A-0637

Discontinued

Discontinued
 $14.65
Discontinued
B19
Spring-torsion
 $10.48

Part Number:732-0483A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Parts)
 $10.48
Usually ships in 7 - 12 business days
 $10.48
B20
Pivot Pin .187" Dia. x 7.25" Lg. Obsolete - Not Available
 $2.99

Part Number:747-0514

Discontinued

Discontinued
 $2.99
Discontinued
B21
Bolt-carriage 1/4-
Minimum Quantity of 2 Required
 $5.28

Part Number:710-0134

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: If Equipped
 $5.28
Usually ships in 7 - 12 business days
 $5.28
B22
Truss Mach. Scr. 1/4-20 X .75
Minimum Quantity of 2 Required
 $4.63

Part Number:710-0924

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Purchase Locally
 $4.63
Usually ships in 7 - 12 business days
 $4.63
B23
Screw-hex 1/4-20 X
 $3.99

Part Number:910-0289

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Faster Service Obtain Standard Nuts Locally. if These Items Cannot Be Obtained Locally, Order by Part Number and Size as Sho
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B25
Screw-1/4-20 X .62
Minimum Quantity of 2 Required
 $4.18

Part Number:710-0751

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $4.18
In Stock
 $4.18
B26
Nut-hex 1/4-20 Obsolete - Not Available
 $5.62

Part Number:912-0287

Discontinued

Discontinued

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $5.62
Discontinued
B27
Plate-pawl
 $6.59

Part Number:16855

In Stock

In Stock
 $6.59
In Stock
 $6.59
B28
Washer-lock
Minimum Quantity of 2 Required
 $5.57

Part Number:936-0329

In Stock

In Stock

Note: (for Model E633e)
 $5.57
In Stock
 $5.57
B29
Frame-catcher-fr
 $53.74

Part Number:747-0705-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Rear Discharge Models 836r, 836r 837r & 838r Only)
 $53.74
Usually ships in 7 - 12 business days
 $53.74
B31
Kit-control Housin Obsolete - Not Available
 $39.47

Part Number:753-0717

Discontinued

Discontinued

Note: Only Available as 753-0717 Kit
 $39.47
Discontinued
B32
Spark Plug Boot Obsolete - Not Available
 $2.99

Part Number:735-0639

Discontinued

Discontinued

Note: (Optional)
 $2.99
Discontinued
B33
Nut-wing 1/4-20
Minimum Quantity of 2 Required
 $4.27

Part Number:712-0397A

In Stock

In Stock

Note: Only Applicable to Three-In-One Models
 $4.27
In Stock
 $4.27
B34
Cable-throttle
 $19.72

Part Number:946-0674A

In Stock

In Stock

Note: for Model 848c Only.
 $19.72
In Stock
 $19.72
B35
Use 749-0907b
 $54.42

Part Number:749-0907B-0637

In Stock

In Stock

Note: (Code: N)
 $54.42
In Stock
 $54.42
B39
Retaining Strip Obsolete - Not Available
 $4.99

Part Number:14835

Discontinued

Discontinued
 $4.99
Discontinued
B40
Nut-nylon Lk 1/4x2
Minimum Quantity of 2 Required
 $3.99

Part Number:712-0324

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Motor, Switch & Cord Ass\\\\\\\'y. Comp. (Ref. 49)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B41
Fl-wash. .344 I.d. X .62 O.d.
Minimum Quantity of 2 Required
 $4.48

Part Number:736-0204

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional)
 $4.48
Usually ships in 7 - 12 business days
 $4.48
B42
Chain- Axle Ass'y. Obsolete - Not Available
 $2.99

Part Number:17055B

Discontinued

Discontinued
 $2.99
Discontinued
B43
Screw-hex B-tap 1
 $5.76

Part Number:710-0352

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete
 $5.76
Usually ships in 7 - 12 business days
 $5.76
B44
Washer-spring Bell
Minimum Quantity of 2 Required
 $4.18

Part Number:736-0270

In Stock

In Stock

Note: If Equipped
 $4.18
In Stock
 $4.18
B45
Hex Wash. Scr. 1/4-14 X .625
Minimum Quantity of 2 Required
 $4.44

Part Number:710-0896

In Stock

In Stock
 $4.44
In Stock
 $4.44
B46
Arm-catcher Suppor Obsolete - Not Available
 $11.34

Part Number:749-0778

Discontinued

Discontinued

Note: (Rear Discharge Models 836r, 836r 837r & 838r Only)
 $11.34
Discontinued
B47
Nut Hex Lock 3/8-2 Obsolete - Not Available
 $3.99

Part Number:912-0296

Discontinued

Discontinued

Note: Models 820 Thru 829
 $3.99
Discontinued
B48
#48 Chain .50" Pitch X 30 Links Obsolete - Not Available
 $8.01

Part Number:913-0353

Discontinued

Discontinued
 $8.01
Discontinued
B50
Plug Obsolete - Not Available
 $3.99

Part Number:731-0564

Discontinued

Discontinued

Note: (Models 420r Thru 429r Only)
 $3.99
Discontinued
B51
Flap-rr Obsolete - Not Available
 $33.04

Part Number:731-0672A

Discontinued

Discontinued
 $33.04
Discontinued
B52
Tie-cable 7
Minimum Quantity of 2 Required
 $3.99

Part Number:725-0157

In Stock

In Stock

Note: (W/ Heated Grips)
 $3.99
In Stock
 $3.99
B54
Screw-hex Ab-tap
 $7.95

Part Number:710-1025

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Models 460r Thru 468r Only.
 $7.95
Usually ships in 7 - 12 business days
 $7.95
B55
Kit-blade Adapter- Obsolete - Not Available
 $47.20

Part Number:753-0485

Discontinued

Discontinued

Note: Used With Splined Crankshaft
 $47.20
Discontinued
B56
Blade-21in
 $31.71

Part Number:942-0621

In Stock

In Stock

Note: (Optional)
 $31.71
In Stock
 $31.71
B58
Washer-bell Obsolete - Not Available
 $3.99

Part Number:936-0453

Discontinued

Discontinued

Note: Used With Splined Crankshaft
 $3.99
Discontinued
B60
Screw-hex 7/16-20
 $10.17

Part Number:710-0757

In Stock

In Stock

Note: (Units With Manual Pto.)
 $10.17
In Stock
 $10.17
B61
Spacer .513 I.d. X .703
 $6.05

Part Number:748-0190

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.05
Usually ships in 7 - 12 business days
 $6.05
B63
Washer-lock 5/16
Minimum Quantity of 2 Required
 $4.95

Part Number:936-0119

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $4.95
In Stock
 $4.95
B64
Bracket Assy-rh Hn Obsolete - Not Available
 $26.37

Part Number:16136C-0637

Discontinued

Discontinued

Note: New Part
 $26.37
Discontinued
B65
Bracket Assy-hndl-lh Obsolete - Not Available
 $24.39

Part Number:16137C-0637

Discontinued

Discontinued

Note: New Part
 $24.39
Discontinued
B66
Bolt-carriage 5/16
Minimum Quantity of 2 Required
 $4.27

Part Number:710-0260A

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $4.27
In Stock
 $4.27
B67
Hex Wash. Hd. B-tap Scr.5/16-1
 $5.97

Part Number:710-0603

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: For Models 147h and 149c Only.
 $5.97
Usually ships in 7 - 12 business days
 $5.97
B68
Screw-hex
Minimum Quantity of 2 Required
 $4.32

Part Number:710-0654A

In Stock

In Stock

Note: Code 665
 $4.32
In Stock
 $4.32
B69
Use 912-3010
Minimum Quantity of 2 Required
 $4.48

Part Number:712-3010

In Stock

In Stock
 $4.48
In Stock
 $4.48
B70
Grip
 $14.85

Part Number:720-0223

In Stock

In Stock
 $14.85
In Stock
 $14.85
B71
Lever-hgt Adj Obsolete - Not Available
 $7.56

Part Number:732-0606

Discontinued

Discontinued
 $7.56
Discontinued
B72
Extension Spring 3.8" Lg. Obsolete - Not Available
 $4.99

Part Number:932-0481

Discontinued

Discontinued
 $4.99
Discontinued
B73
Washer-bell .337 X
Minimum Quantity of 2 Required
 $4.32

Part Number:736-0242

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Used in This Application
 $4.32
Usually ships in 7 - 12 business days
 $4.32
B75
Spacer-shld .500 X Obsolete - Not Available
 $4.99

Part Number:750-0624

Discontinued

Discontinued
 $4.99
Discontinued
B76
Guide-rope
 $19.97

Part Number:719-0279

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Parts)
 $19.97
Usually ships in 7 - 12 business days
 $19.97
B77
Retainer-bolt 1/4x
Minimum Quantity of 2 Required
 $4.53

Part Number:726-0233

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.53
Usually ships in 7 - 12 business days
 $4.53
B79
Control Label-throttle
 $3.99

Part Number:777-5812

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B80
Shld. Scr. .342" Dia. X .268 Obsolete - Not Available
 $4.99

Part Number:738-0137

Discontinued

Discontinued
 $4.99
Discontinued
B81
Pawl - Lh
 $11.83

Part Number:948-0188B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $11.83
Usually ships in 7 - 12 business days
 $11.83
B82
Wheel-comp Gray Pl
 $42.29

Part Number:734-1826

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Model 848c Only.
 $42.29
Usually ships in 7 - 12 business days
 $42.29
B84
Sleeve Brg. 1/2" I.D. Obsolete - Not Available
 $3.99

Part Number:741-0486B

Discontinued

Discontinued
 $3.99
Discontinued
B86
Nut-flat Wel
Minimum Quantity of 2 Required
 $4.44

Part Number:712-0414

In Stock

In Stock

Note: (Used W/Ref. #88)
 $4.44
In Stock
 $4.44
B87
Clip-panel Bag
 $3.99

Part Number:731-0880

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Top Discharge Models 175r, 176r & 177r Only)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B95
Cable-clutch
 $41.00

Part Number:946-0710A

In Stock

In Stock

Note: Not Part of Transmission Complete
 $41.00
In Stock
 $41.00
B96
Belt-v 3/8 X 31.0
 $31.64

Part Number:954-0343

In Stock

In Stock

Note: 616e
 $31.64
In Stock
 $31.64
B97
Bag Handle Obsolete - Not Available
 $16.84

Part Number:731-0801

Discontinued

Discontinued

Note: (Models 460r Thru 469r Only)
 $16.84
Discontinued
B98
Sleeve Obsolete - Not Available
 $3.99

Part Number:911-0313

Discontinued

Discontinued

Note: (Used on Tractors W/Serial No. 192,001 & Above)
 $3.99
Discontinued
B99
Screw-hex 3/8-24 X
 $6.02

Part Number:710-1055

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Blade 3 Bolt Mount
 $6.02
Usually ships in 7 - 12 business days
 $6.02
B100
Nut-hex 3/8-24
Minimum Quantity of 2 Required
 $5.50

Part Number:712-0241

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $5.50
In Stock
 $5.50
B101
Use 936-0169
Minimum Quantity of 2 Required
 $3.99

Part Number:736-0169

In Stock

In Stock
 $3.99
In Stock
 $3.99
B102
Deck-assembly-21in Obsolete - Not Available
 $118.81

Part Number:17051B-0638

Discontinued

Discontinued
 $118.81
Discontinued
B114
Kit-control Housin Obsolete - Not Available
 $39.47

Part Number:753-0717

Discontinued

Discontinued

Note: Only Available as 753-0717 Kit
 $39.47
Discontinued
B115
Kit-control Housin Obsolete - Not Available
 $39.47

Part Number:753-0717

Discontinued

Discontinued

Note: Only Available as 753-0717 Kit
 $39.47
Discontinued
B116
Lever-control
 $19.33

Part Number:731-0620A

In Stock

In Stock

Note: (Not Shown)
 $19.33
In Stock
 $19.33
B117
Height Adjustment Kn
 $17.09

Part Number:731-13116-1

In Stock

In Stock

Note: (Optional Parts)
 $17.09
In Stock
 $17.09
B118
Screw-fl C-sunk Ab
 $4.55

Part Number:710-0841

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.55
Usually ships in 7 - 12 business days
 $4.55
B119
Bracket-cable
 $13.93

Part Number:16864

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $13.93
Usually ships in 7 - 12 business days
 $13.93
B120
Washer-fl Obsolete - Not Available
 $6.90

Part Number:936-0211

Discontinued

Discontinued

Note: (Not Shown)(46" Deck Models Only)
 $6.90
Discontinued
B121
Bolt-carriage-curv Obsolete - Not Available
 $3.99

Part Number:910-0671

Discontinued

Discontinued
 $3.99
Discontinued
B122
Pin-shld 3/8-24x1. Obsolete - Not Available
 $3.99

Part Number:711-0805

Discontinued

Discontinued
 $3.99
Discontinued
B123
Use 936-0169
Minimum Quantity of 2 Required
 $3.99

Part Number:736-0169

In Stock

In Stock
 $3.99
In Stock
 $3.99
B128
Jam Nut 3/8-24
Minimum Quantity of 2 Required
 $4.49

Part Number:712-0711

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $4.49
In Stock
 $4.49
B129
Cable-control Obsolete - Not Available
 $16.63

Part Number:946-0480A

Discontinued

Discontinued
 $16.63
Discontinued
B130
Ratchet
 $12.67

Part Number:948-0318

In Stock

In Stock

Note: Models 820 Thru 829
 $12.67
In Stock
 $12.67
B131
Cotter Pin 1/8" Dia.
 $3.99

Part Number:714-0115

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B132
Screw-hex B-tap #
 $3.99

Part Number:910-0429

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Parts)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B133
Deflector-side Chu Obsolete - Not Available
 $24.51

Part Number:731-0884

Discontinued

Discontinued
 $24.51
Discontinued
B134
Use 941-0522
 $8.87

Part Number:741-0522

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.87
Usually ships in 7 - 12 business days
 $8.87
B135
Control Housing Comp. Obsolete - Not Available
 $21.99

Part Number:753-0430A

Discontinued

Discontinued
 $21.99
Discontinued
B136
Spring
Minimum Quantity of 2 Required
 $4.99

Part Number:10622B

In Stock

In Stock
 $4.99
In Stock
 $4.99
B138
Chain Cover Obsolete - Not Available
 $2.99

Part Number:17053A

Discontinued

Discontinued
 $2.99
Discontinued
B140
Screw-hex Wash Sf
Minimum Quantity of 2 Required
 $4.44

Part Number:710-0599

In Stock

In Stock

Note: Not Used on Units With Electric P.T.O.
 $4.44
In Stock
 $4.44
B144
Fl-wash. .385 I.d. X .87
Minimum Quantity of 2 Required
 $4.99

Part Number:736-0300

In Stock

In Stock
 $4.99
In Stock
 $4.99
B147
Rear Axle Ass'y. Obsolete - Not Available
 $62.61

Part Number:938-0719A

Discontinued

Discontinued
 $62.61
Discontinued
B148
Bearing-hex Flange
 $8.14

Part Number:741-0324A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Models 820 Thru 829
 $8.14
Usually ships in 7 - 12 business days
 $8.14
B149
Washer-fl
 $4.49

Part Number:936-0160

In Stock

In Stock

Note: (Not Part of Deck Assembly Complete)
 $4.49
In Stock
 $4.49
B152
Screw-1/4-20 X .62
Minimum Quantity of 2 Required
 $4.18

Part Number:710-0751

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $4.18
In Stock
 $4.18
B153
Transmission-comp Obsolete - Not Available
 $239.49

Part Number:917-0417B

Discontinued

Discontinued

Note: (See Breakdown)
 $239.49
Discontinued
B154
Bearing-cup Hex Obsolete - Not Available
 $9.50

Part Number:16500A-0637

Discontinued

Discontinued

Note: Part of Transmission Complete, Ref. No. 36.
 $9.50
Discontinued
B155
Truss Mach. Scr. 5/16-18 X .75
 $5.71

Part Number:710-0323

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $5.71
Usually ships in 7 - 12 business days
 $5.71
B156
Plastic Tubing Obsolete - Not Available
 $2.99

Part Number:731-0759

Discontinued

Discontinued
 $2.99
Discontinued
B161
Frame-catcher-rr
 $51.17

Part Number:749-0764A-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $51.17
Usually ships in 7 - 12 business days
 $51.17
B164
Spd. Control Cable Obsolete - Not Available
 $19.37

Part Number:746-0706

Discontinued

Discontinued
 $19.37
Discontinued
B165
Lever-6 Speed Shif Obsolete - Not Available
 $8.03

Part Number:731-0924

Discontinued

Discontinued
 $8.03
Discontinued
B166
Bracket-adj Cable Obsolete - Not Available
 $20.64

Part Number:17070-0637

Discontinued

Discontinued
 $20.64
Discontinued
B168
Use 912-0291
 $5.60

Part Number:712-0291

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional)
 $5.60
Usually ships in 7 - 12 business days
 $5.60
B169
Pin-cotter-3/32 Di
 $5.60

Part Number:914-0507

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $5.60
In Stock
 $5.60
B170
Rod-shift-lh Obsolete - Not Available
 $24.23

Part Number:747-0684

Discontinued

Discontinued
 $24.23
Discontinued
B171
Pulley Assy-moveab Obsolete - Not Available
 $93.34

Part Number:941-0500A

Discontinued

Discontinued
 $93.34
Discontinued
B172
Carriage Bolt 1/4-20x.50
Minimum Quantity of 2 Required
 $4.91

Part Number:710-05177

In Stock

In Stock
 $4.91
In Stock
 $4.91
B173
Pulley-movable Obsolete - Not Available
 $8.02

Part Number:756-0503

Discontinued

Discontinued
 $8.02
Discontinued
B174
Bushing-flanged Obsolete - Not Available
 $4.99

Part Number:931-1137

Discontinued

Discontinued
 $4.99
Discontinued
B175
Washer-fl
 $5.75

Part Number:736-0278

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Not Shown)
 $5.75
Usually ships in 7 - 12 business days
 $5.75
B176
Cable Mtg. Brkt. Ass'y. Obsolete - Not Available
 $42.56

Part Number:17073

Discontinued

Discontinued
 $42.56
Discontinued
B177
Spring-shift 6 Spe
 $9.79

Part Number:732-0627A

In Stock

In Stock
 $9.79
In Stock
 $9.79
B178
Clamp Obsolete - Not Available
 $3.99

Part Number:726-0175

Discontinued

Discontinued
 $3.99
Discontinued
B179
Engine Cover Obsolete - Not Available
 $6.49

Part Number:720-0271

Discontinued

Discontinued

Note: Nla (Optional)
 $6.49
Discontinued
B180
Screw-tap
 $4.48

Part Number:710-0936

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: For Model 134t696h190 Only
 $4.48
Usually ships in 7 - 12 business days
 $4.48
B181
Washer-fl-.385 X 1
Minimum Quantity of 2 Required
 $5.60

Part Number:736-0258

Backorder: No ETA

Backorder: No ETA

Note: (Once This Piece Is Put on Tractor, It Doesn’t Need to Be Removed When Snow Thrower Is Removed From Tractor)
 $5.60
Backorder: No ETA
 $5.60
Page C
MTD 121-898R401 (1991) Lawn Mower Page C Diagram
 Fig #
C1
Use 938-0102
 $10.62

Part Number:738-0102

In Stock

In Stock

Note: (282 Only)
 $10.62
In Stock
 $10.62
C2
Wheel Assy W/tire
 $69.05

Part Number:734-1517B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Changed From Original Printing.
 $69.05
Usually ships in 7 - 12 business days
 $69.05
C4
Bearing-ball Obsolete - Not Available
 $19.26

Part Number:941-0180

Discontinued

Discontinued

Note: (106f)
 $19.26
Discontinued
C6
Washer-bell .400 I
Minimum Quantity of 2 Required
 $4.57

Part Number:736-0105

In Stock

In Stock

Note: For Models 586, 587b & 588
 $4.57
In Stock
 $4.57
C7
Self-tapping Screw, 1/4-20 X 1
 $8.84

Part Number:710-0788

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.84
Usually ships in 7 - 12 business days
 $8.84
C8
Washer-lock
Minimum Quantity of 2 Required
 $5.57

Part Number:936-0329

In Stock

In Stock

Note: (for Model E633e)
 $5.57
In Stock
 $5.57
C9
Bushing-block
 $7.69

Part Number:741-0492A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.69
Usually ships in 7 - 12 business days
 $7.69
C10
Axle Assy-fr Po Obsolete - Not Available
 $70.87

Part Number:17733-0637

Discontinued

Discontinued
 $70.87
Discontinued
C11
Height Adj. Bracket Obsolete - Not Available
 $4.99

Part Number:17059

Discontinued

Discontinued
 $4.99
Discontinued
C12
Screw-tap 1/4-20
Minimum Quantity of 2 Required
 $5.40

Part Number:710-0653

In Stock

In Stock

Note: Manual Pto
 $5.40
In Stock
 $5.40
C13
Height Adjustment Kn
 $17.09

Part Number:731-13116-1

In Stock

In Stock

Note: (Optional Parts)
 $17.09
In Stock
 $17.09
C14
Spring Lever Obsolete - Not Available
 $3.99

Part Number:732-0639

Discontinued

Discontinued
 $3.99
Discontinued
C15
Front End-plastic Obsolete - Not Available
 $102.72

Part Number:931-0865C

Discontinued

Discontinued
 $102.72
Discontinued
C16
Screw-hex B-tap 1
 $5.76

Part Number:710-0352

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete
 $5.76
Usually ships in 7 - 12 business days
 $5.76
C17
Cover-belt Obsolete - Not Available
 $8.00

Part Number:17065A-0637

Discontinued

Discontinued

Note: Not Part of Transmission Complete
 $8.00
Discontinued
C18
Screw-hex Wash Sf
Minimum Quantity of 2 Required
 $4.44

Part Number:710-0599

In Stock

In Stock

Note: Not Used on Units With Electric P.T.O.
 $4.44
In Stock
 $4.44
C19
Washer-spring Bell
Minimum Quantity of 2 Required
 $4.18

Part Number:736-0270

In Stock

In Stock

Note: If Equipped
 $4.18
In Stock
 $4.18
C20
Hex Wash. Scr. 1/4-14 X .625
Minimum Quantity of 2 Required
 $4.44

Part Number:710-0896

In Stock

In Stock
 $4.44
In Stock
 $4.44
C21
Nut-hex 1/4-20 Obsolete - Not Available
 $5.62

Part Number:912-0287

Discontinued

Discontinued

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $5.62
Discontinued
C23
Guard-belt Obsolete - Not Available
 $13.78

Part Number:17058A-0637

Discontinued

Discontinued

Note: (Not Part of Complete Transmission)
 $13.78
Discontinued
C24
S.P. Belt Guard Obsolete - Not Available
 $3.60

Part Number:747-0549

Discontinued

Discontinued

Note: (Not Part of Transmission Complete)
 $3.60
Discontinued
C25
Screw-ab Tap
Minimum Quantity of 2 Required
 $5.62

Part Number:710-1242

In Stock

In Stock
 $5.62
In Stock
 $5.62
C26
Washer-bell .337 X
Minimum Quantity of 2 Required
 $4.32

Part Number:736-0242

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Used in This Application
 $4.32
Usually ships in 7 - 12 business days
 $4.32
C27
Hub Cap-beige
 $13.76

Part Number:731-0982C

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Optional
 $13.76
Usually ships in 7 - 12 business days
 $13.76
C28
Cable-clutch
 $41.00

Part Number:946-0710A

In Stock

In Stock

Note: Not Part of Transmission Complete
 $41.00
In Stock
 $41.00
C29
Use 936-0232
Minimum Quantity of 2 Required
 $5.71

Part Number:736-0232

In Stock

In Stock

Note: (Used W/Steel Wheel)
 $5.71
In Stock
 $5.71
C30
External L-wash. 1/4 I.d.
 $4.99

Part Number:736-0222

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
 Fig #
Lawn Mower Parts

Repair Guides for MTD Lawn Mower 121-898R401 (1991)

Lawn and Garden Machines and Power Tools

This article lists the major categories of lawn and garden tools and machines, explaining the basic applications, types, and features of each.

How to Replace a Lawn Mower Blade

Lawn mower blades must be replaced after so many hours of cutting, and the steps in this article explain how to perform this simple parts replacement.

How to Replace the Fuel Filters in Your Outdoor Power Equipment

This video will help you troubleshoot your fuel-line replacement repairs.

How to Winterize Power Tools and Machines

This video explains how to properly winterize power tools and machines for winter storage, increasing the life and performance of seasonal tools.

Questions & Answers for MTD 121-898R401 (1991)


No questions have been asked yet
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