![GE Replacement For Model GTL21KCXABS](images/ge_logo.png)
GE Replacement Parts For Model GTL21KCXABS
![GE GTL21KCXABS Doors Diagram](images/ge/GTL21KCXABS_WW_1.gif)
![GE GTL21KCXABS WR01X10720 OEM replacement Screw Tapping](images2/photo_not_available.png)
Part Number:WR01X10720
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR78X12091 OEM replacement Door Asm Fz-clean Steel](images2/photo_not_available.png)
Part Number:WR78X12091
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12504 OEM replacement Cap Bushing](images2/photo_not_available.png)
Part Number:WR02X12504
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12505 OEM replacement Cap Hinge T Hole](images2/photo_not_available.png)
Part Number:WR02X12505
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR32X10633 OEM replacement Cover T Hi](images2/photo_not_available.png)
Part Number:WR32X10633
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10712 OEM replacement Special Hi Bolt T](images2/photo_not_available.png)
Part Number:WR01X10712
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR13X10464 OEM replacement Hinge T Asm](images2/photo_not_available.png)
Part Number:WR13X10464
Discontinued
Part Number:WR01X10702
Usually ships in 7 - 12 business days
Part Number:WR13X10459
Discontinued
![GE GTL21KCXABS WR01X10713 OEM replacement Special Hi Bolt M](images2/photo_not_available.png)
Part Number:WR01X10713
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12508 OEM replacement Cap Hi M Hole](images2/photo_not_available.png)
Part Number:WR02X12508
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12506 OEM replacement Cap Hinge M](images2/photo_not_available.png)
Part Number:WR02X12506
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR04X10164 OEM replacement Label Eblm Ge](images2/photo_not_available.png)
Part Number:WR04X10164
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10733 OEM replacement Cap Handle Screw](images2/photo_not_available.png)
Part Number:WR01X10733
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR71X10768 OEM replacement Pocket Fz Door](images2/photo_not_available.png)
Part Number:WR71X10768
Discontinued
![GE GTL21KCXABS WR14X10286 OEM replacement Gasket Fz Door Asm Bb](images2/photo_not_available.png)
Part Number:WR14X10286
Discontinued
![GE GTL21KCXABS WR78X12092 OEM replacement Door Asm Ff-clean Steel](images2/photo_not_available.png)
Part Number:WR78X12092
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12516 OEM replacement Cap Bushing](images2/photo_not_available.png)
Part Number:WR02X12516
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10730 OEM replacement Cap Handle Screw (black)](images2/photo_not_available.png)
Part Number:WR01X10730
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10703 OEM replacement Stopper Ff Door](images2/photo_not_available.png)
Part Number:WR01X10703
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10715 OEM replacement Special Screw Handle](images2/photo_not_available.png)
Part Number:WR01X10715
Discontinued
Part Number:WR02X13143
Discontinued
![GE GTL21KCXABS WR13X10457 OEM replacement Hinge U Asm](images2/photo_not_available.png)
Part Number:WR13X10457
Discontinued
Part Number:WR01X10714
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR12X10889 OEM replacement Handle Pack Asm Bk](images2/photo_not_available.png)
Part Number:WR12X10889
Discontinued
![GE GTL21KCXABS WR32X10638 OEM replacement Cover Dairy](images2/photo_not_available.png)
Part Number:WR32X10638
Discontinued
![GE GTL21KCXABS WR71X10771 OEM replacement Pocket Dairy](images2/photo_not_available.png)
Part Number:WR71X10771
Discontinued
![GE GTL21KCXABS WR14X10287 OEM replacement Gasket Ff Door Asm Bb](images2/photo_not_available.png)
Part Number:WR14X10287
Discontinued
![GE GTL21KCXABS WR71X10769 OEM replacement Pocket Bottle](images2/photo_not_available.png)
Part Number:WR71X10769
Discontinued
![GE GTL21KCXABS WR71X10770 OEM replacement Pocket Ff](images2/photo_not_available.png)
Part Number:WR71X10770
Discontinued
![GE GTL21KCXABS WR01X10717 OEM replacement Special Screw Handle](images2/photo_not_available.png)
Part Number:WR01X10717
Discontinued
![GE GTL21KCXABS WR12X10888 OEM replacement Handle Pack Asm Wh](images2/photo_not_available.png)
Part Number:WR12X10888
Discontinued
![GE GTL21KCXABS WR01X10737 OEM replacement Special Bolt T](images2/photo_not_available.png)
Part Number:WR01X10737
Usually ships in 7 - 12 business days
![GE GTL21KCXABS 49-60505 OEM replacement Pm Guide Owners](images2/photo_not_available.png)
Part Number:49-60505
Discontinued
![GE GTL21KCXABS 31-46109 OEM replacement Pm Mini Manual](images2/photo_not_available.png)
Part Number:31-46109
Discontinued
![GE GTL21KCXABS Freezer Section Diagram](images/ge/GTL21KCXABS_WW_2.gif)
![GE GTL21KCXABS WR02X12495 OEM replacement Clamp Fan](images2/photo_not_available.png)
Part Number:WR02X12495
Discontinued
Part Number:WR02X12499
Discontinued
![GE GTL21KCXABS WR13X10460 OEM replacement Cover Fan Fz Asm](images2/photo_not_available.png)
Part Number:WR13X10460
Discontinued
![GE GTL21KCXABS WR13X10465 OEM replacement Louver Fz](images2/photo_not_available.png)
Part Number:WR13X10465
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12528 OEM replacement Seal Luvr](images2/photo_not_available.png)
Part Number:WR02X12528
Discontinued
![GE GTL21KCXABS WR01X10711 OEM replacement Special C/b Bolt](images2/photo_not_available.png)
Part Number:WR01X10711
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR14X10241 OEM replacement Gasket Louver](images2/photo_not_available.png)
Part Number:WR14X10241
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR17X12330 OEM replacement Guide Drn](images2/photo_not_available.png)
Part Number:WR17X12330
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR51X10096 OEM replacement Heater Defrost Asm](images2/photo_not_available.png)
Part Number:WR51X10096
Discontinued
![GE GTL21KCXABS WR01X10697 OEM replacement Fixture Heater](images2/photo_not_available.png)
Part Number:WR01X10697
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10729 OEM replacement Pad Evap (r)](images2/photo_not_available.png)
Part Number:WR01X10729
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10728 OEM replacement Pad Evap (l)](images2/photo_not_available.png)
Part Number:WR01X10728
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR17X12331 OEM replacement Evaporator Asm](images2/photo_not_available.png)
Part Number:WR17X12331
Discontinued
![GE GTL21KCXABS WR02X12532 OEM replacement Pipe Muffler](images2/photo_not_available.png)
Part Number:WR02X12532
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10723 OEM replacement Absorber Muffler](images2/photo_not_available.png)
Part Number:WR01X10723
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12513 OEM replacement Switch Bimetal Asm](images2/photo_not_available.png)
Part Number:WR02X12513
Discontinued
![GE GTL21KCXABS WR23X10562 OEM replacement Harness Luvr Asm](images2/photo_not_available.png)
Part Number:WR23X10562
Discontinued
![GE GTL21KCXABS WR71X10772 OEM replacement Shelf Fz Wire](images2/photo_not_available.png)
Part Number:WR71X10772
Discontinued
![GE GTL21KCXABS WR01X10706 OEM replacement Special Luvr Bolt B](images2/photo_not_available.png)
Part Number:WR01X10706
Discontinued
![GE GTL21KCXABS WR01X10696 OEM replacement Fixture Fan Motor B](images2/photo_not_available.png)
Part Number:WR01X10696
Discontinued
![GE GTL21KCXABS WR32X10644 OEM replacement Box Ice](images2/photo_not_available.png)
Part Number:WR32X10644
Discontinued
Part Number:WR30X10093
In Stock
Note: Replacement icemaker kit - electronic. This kit includes a 4 pin round plug-in connector, 6 post plug-in connector, tube and fill cup.
Part Number:WR29X10074
Discontinued
![GE GTL21KCXABS Fresh Food Section Diagram](images/ge/GTL21KCXABS_WW_3.gif)
![GE GTL21KCXABS WR01X10711 OEM replacement Special C/b Bolt](images2/photo_not_available.png)
Part Number:WR01X10711
Usually ships in 7 - 12 business days
Part Number:WR49X10273
Discontinued
![GE GTL21KCXABS WR02X12510 OEM replacement Switch Door Asm](images2/photo_not_available.png)
Part Number:WR02X12510
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12549 OEM replacement Knob Fz Dial](images2/photo_not_available.png)
Part Number:WR02X12549
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12547 OEM replacement Knob Ff Dial](images2/photo_not_available.png)
Part Number:WR02X12547
Discontinued
![GE GTL21KCXABS WR02X12522 OEM replacement Socket Lamp Asm](images2/photo_not_available.png)
Part Number:WR02X12522
Discontinued
![GE GTL21KCXABS WR02X12536 OEM replacement Plate Lamp](images2/photo_not_available.png)
Part Number:WR02X12536
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR23X10563 OEM replacement Harness Box Cont Asm](images2/photo_not_available.png)
Part Number:WR23X10563
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12529 OEM replacement Seal Insu Duct B](images2/photo_not_available.png)
Part Number:WR02X12529
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR17X12335 OEM replacement Insu R Duct (t) Dbl](images2/photo_not_available.png)
Part Number:WR17X12335
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12520 OEM replacement Guide Ff Sens Dbl](images2/photo_not_available.png)
Part Number:WR02X12520
Discontinued
![GE GTL21KCXABS WR17X12334 OEM replacement Insu R Duct M Dbl](images2/photo_not_available.png)
Part Number:WR17X12334
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12531 OEM replacement Lever Flap](images2/photo_not_available.png)
Part Number:WR02X12531
Usually ships in 7 - 12 business days
Part Number:WR49X10273
Discontinued
![GE GTL21KCXABS WR72X10246 OEM replacement Supporter Shelf R M](images2/photo_not_available.png)
Part Number:WR72X10246
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10721 OEM replacement Screw Tapping](images2/photo_not_available.png)
Part Number:WR01X10721
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR17X12336 OEM replacement Insu M/f Duct Asm](images2/photo_not_available.png)
Part Number:WR17X12336
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR32X10634 OEM replacement Cover M/f Duct](images2/photo_not_available.png)
Part Number:WR32X10634
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12509 OEM replacement Stopper M/f Duct](images2/photo_not_available.png)
Part Number:WR02X12509
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12544 OEM replacement Deco M/f Duct](images2/photo_not_available.png)
Part Number:WR02X12544
Usually ships in 7 - 12 business days
![GE GTL21KCXABS Fresh Food Shelves Diagram](images/ge/GTL21KCXABS_WW_4.gif)
![GE GTL21KCXABS WR32X10639 OEM replacement Veg Pan Glass](images2/photo_not_available.png)
Part Number:WR32X10639
Discontinued
![GE GTL21KCXABS WR02X12548 OEM replacement Knob Humid](images2/photo_not_available.png)
Part Number:WR02X12548
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR14X10240 OEM replacement Gasket Cover Vegtb F](images2/photo_not_available.png)
Part Number:WR14X10240
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR38X10405 OEM replacement Rein Cover Veget B](images2/photo_not_available.png)
Part Number:WR38X10405
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR14X10242 OEM replacement Gasket Cover Vegtb B](images2/photo_not_available.png)
Part Number:WR14X10242
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10719 OEM replacement Screw Tapping](images2/photo_not_available.png)
Part Number:WR01X10719
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12519 OEM replacement Guide Cover Vegetb](images2/photo_not_available.png)
Part Number:WR02X12519
Usually ships in 7 - 12 business days
Part Number:WR32X10641
Discontinued
![GE GTL21KCXABS WR79X10044 OEM replacement Plate Inst Glass](images2/photo_not_available.png)
Part Number:WR79X10044
Discontinued
![GE GTL21KCXABS WR71X10767 OEM replacement Shelf R Sm I](images2/photo_not_available.png)
Part Number:WR71X10767
Discontinued
Part Number:WR72X10243
In Stock
![GE GTL21KCXABS WR02X12503 OEM replacement Cap Sliding](images2/photo_not_available.png)
Part Number:WR02X12503
Usually ships in 7 - 12 business days
![GE GTL21KCXABS 7112401008 OEM replacement Tapping Screw](images2/photo_not_available.png)
Part Number:7112401008
Discontinued
![GE GTL21KCXABS WR72X10244 OEM replacement Holder C/c Shelf R](images2/photo_not_available.png)
Part Number:WR72X10244
Discontinued
![GE GTL21KCXABS WR72X10242 OEM replacement Holder Shelf L](images2/photo_not_available.png)
Part Number:WR72X10242
Discontinued
![GE GTL21KCXABS WR72X10245 OEM replacement Holder Shelf R](images2/photo_not_available.png)
Part Number:WR72X10245
Usually ships in 7 - 12 business days
Part Number:WR32X10640
Discontinued
![GE GTL21KCXABS Unit Parts Diagram](images/ge/GTL21KCXABS_WW_5.gif)
![GE GTL21KCXABS WR23X10570 OEM replacement Power Cord Asm](images2/photo_not_available.png)
Part Number:WR23X10570
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10718 OEM replacement Screw Machine](images2/photo_not_available.png)
Part Number:WR01X10718
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10720 OEM replacement Screw Tapping](images2/photo_not_available.png)
Part Number:WR01X10720
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12533 OEM replacement Pipe Svc](images2/photo_not_available.png)
Part Number:WR02X12533
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10732 OEM replacement Special Dc Motr Bolt](images2/photo_not_available.png)
Part Number:WR01X10732
Discontinued
![GE GTL21KCXABS WR86X10043 OEM replacement Dryer](images2/photo_not_available.png)
Part Number:WR86X10043
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12524 OEM replacement Cap F Drn PB](images2/photo_not_available.png)
Part Number:WR02X12524
Discontinued
![GE GTL21KCXABS WR02X12543 OEM replacement Case Vapori](images2/photo_not_available.png)
Part Number:WR02X12543
Discontinued
![GE GTL21KCXABS WR17X12329 OEM replacement Grille](images2/photo_not_available.png)
Part Number:WR17X12329
Usually ships in 7 - 12 business days
![GE GTL21KCXABS 7112401211 OEM replacement Tapping Screw](images2/photo_not_available.png)
Part Number:7112401211
Discontinued
![GE GTL21KCXABS WR32X10631 OEM replacement Cover Relay](images2/photo_not_available.png)
Part Number:WR32X10631
Discontinued
![GE GTL21KCXABS WR01X10704 OEM replacement Special Washer Comp](images2/photo_not_available.png)
Part Number:WR01X10704
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10726 OEM replacement Spring Washer Comp](images2/photo_not_available.png)
Part Number:WR01X10726
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10724 OEM replacement Absorber Comp](images2/photo_not_available.png)
Part Number:WR01X10724
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12534 OEM replacement Pipe Suc Conn](images2/photo_not_available.png)
Part Number:WR02X12534
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12535 OEM replacement Pipe Conn Del](images2/photo_not_available.png)
Part Number:WR02X12535
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR60X20329 OEM replacement Motor C Asm](images2/photo_not_available.png)
Part Number:WR60X20329
Discontinued
![GE GTL21KCXABS WR02X12546 OEM replacement Frame Motor C](images2/photo_not_available.png)
Part Number:WR02X12546
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10707 OEM replacement Special C Motor Bolt](images2/photo_not_available.png)
Part Number:WR01X10707
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10722 OEM replacement Absorber C Fan Motor](images2/photo_not_available.png)
Part Number:WR01X10722
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12521 OEM replacement Holder Pipe Wicon](images2/photo_not_available.png)
Part Number:WR02X12521
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR84X10084 OEM replacement Pipe Wicon Sas](images2/photo_not_available.png)
Part Number:WR84X10084
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10705 OEM replacement Special Wicon Bolt](images2/photo_not_available.png)
Part Number:WR01X10705
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12515 OEM replacement Bushing Pipe](images2/photo_not_available.png)
Part Number:WR02X12515
Usually ships in 7 - 12 business days
![GE GTL21KCXABS 7112400811 OEM replacement Screw](images2/photo_not_available.png)
Part Number:7112400811
Discontinued
![GE GTL21KCXABS WR17X12332 OEM replacement Base Comp Sas](images2/photo_not_available.png)
Part Number:WR17X12332
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10709 OEM replacement Special Bolt](images2/photo_not_available.png)
Part Number:WR01X10709
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12517 OEM replacement Special Bolt](images2/photo_not_available.png)
Part Number:WR02X12517
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12518 OEM replacement Bracket Valve](images2/photo_not_available.png)
Part Number:WR02X12518
Usually ships in 7 - 12 business days
![GE GTL21KCXABS 7122401211 OEM replacement Tapping Screw](images2/photo_not_available.png)
Part Number:7122401211
Discontinued
![GE GTL21KCXABS WR02X12539 OEM replacement Caster Fz Asm](images2/photo_not_available.png)
Part Number:WR02X12539
Discontinued
![GE GTL21KCXABS WR02X12545 OEM replacement Foot Adjust Asm](images2/photo_not_available.png)
Part Number:WR02X12545
Discontinued
![GE GTL21KCXABS WR32X10635 OEM replacement Cover Cab Brkt Fz Asm](images2/photo_not_available.png)
Part Number:WR32X10635
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12523 OEM replacement Absorber Pipe B](images2/photo_not_available.png)
Part Number:WR02X12523
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR23X10561 OEM replacement Harness C Fan Motr](images2/photo_not_available.png)
Part Number:WR23X10561
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR60X20329 OEM replacement Motor C Asm](images2/photo_not_available.png)
Part Number:WR60X20329
Discontinued
![GE GTL21KCXABS WR01X10695 OEM replacement Fixture Fan C](images2/photo_not_available.png)
Part Number:WR01X10695
Discontinued
![GE GTL21KCXABS WR07X10100 OEM replacement Relay Starting](images2/photo_not_available.png)
Part Number:WR07X10100
Discontinued
![GE GTL21KCXABS WR07X10101 OEM replacement Relay Ol](images2/photo_not_available.png)
Part Number:WR07X10101
Discontinued
![GE GTL21KCXABS WR23X10560 OEM replacement Harness P Relay Asm](images2/photo_not_available.png)
Part Number:WR23X10560
Discontinued
![GE GTL21KCXABS WR62X10062 OEM replacement Running Capacitor](images2/photo_not_available.png)
Part Number:WR62X10062
Discontinued
![GE GTL21KCXABS WR02X12537 OEM replacement Shaft Castr](images2/photo_not_available.png)
Part Number:WR02X12537
Discontinued
![GE GTL21KCXABS WR02X12541 OEM replacement Caster Fz](images2/photo_not_available.png)
Part Number:WR02X12541
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR01X10727 OEM replacement Spring Cab Brkt Covr](images2/photo_not_available.png)
Part Number:WR01X10727
Usually ships in 7 - 12 business days
Part Number:WR57X10033
In Stock
Note: This single outlet valve has 1/4 inch compression fittings, and is intended for use with refrigerators that have ice makers that make crescent shaped ice cubes.NOTE: As per the manufacturer this valve has new quick connection. You must cut retaining
![GE GTL21KCXABS WR17X12338 OEM replacement Hose Water](images2/photo_not_available.png)
Part Number:WR17X12338
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12556 OEM replacement Guide Water Hose](images2/photo_not_available.png)
Part Number:WR02X12556
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR02X12555 OEM replacement Clamp Water Hose](images2/photo_not_available.png)
Part Number:WR02X12555
Usually ships in 7 - 12 business days
![GE GTL21KCXABS WR17X12339 OEM replacement Tube Water Fill](images2/photo_not_available.png)
Part Number:WR17X12339
Discontinued
![GE GTL21KCXABS WR17X12337 OEM replacement Seal Tube Water Fill](images2/photo_not_available.png)
Part Number:WR17X12337
Usually ships in 7 - 12 business days
Part Number:WR87X20798
Not Available for Retail Sale
Note: This is the mechanics (motor/engine) of the cooling system. It kicks in whenever the thermostat demands cooling.***NOTE: This part needs to be installed by a trained professional in appliance repair. It requires special tools and knowledge to do so.