Hard
30-60 minutes
This is an original Honda replacement part. The gasket is commonly found in Honda small engines and lawnmowers. This part is made of metal, and is used to seal the connection with the cylinder head. Please be aware that there are different gaskets used in the machine. Refer to the parts diagram to be sure of ordering the correct part. You may require a screwdriver when replacing this part. This item is sold individually.
Gasket- Cylinder Head 12251-ZE6-000
OEM part for: Honda
Part Number: 12251-ZE6-000
$10.11
In Stock
Ships within 1 business day 
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Compatibility
This Gasket- Cylinder Head will fit the following 746 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 746 matching models.
746 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Honda
- Honda Marine
This item works with the following types of products:
- Engine
- Lawn Mower
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Lawn mower engine smoking
Scott - November 13, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Engine
Difficulty
Hard
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Torque wrench, flywheel puller, cylinder hone
1: Removed engine from frame
2: Removed valve cover, head, oil pan, camshaft, piston, crankshaft, blade holder, and flywheel.
3: Disassembled and cleaned head.
4: Installed valve seals
5: Reassembled head
6: Honed cylinder
7: Installed rings on piston
8. Installed piston into cylinder, installed crankshaft and camshaft
9. Installed oil pan with new gasket.
10. Installed head with new gasket.
11. Installed blade holder and flywheel.
12. Mounted engine to frame.
2: Removed valve cover, head, oil pan, camshaft, piston, crankshaft, blade holder, and flywheel.
3: Disassembled and cleaned head.
4: Installed valve seals
5: Reassembled head
6: Honed cylinder
7: Installed rings on piston
8. Installed piston into cylinder, installed crankshaft and camshaft
9. Installed oil pan with new gasket.
10. Installed head with new gasket.
11. Installed blade holder and flywheel.
12. Mounted engine to frame.
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white smoke coming out of exhaust
Shawn - April 5, 2021
Tool Type
Lawn Mower
Difficulty
Hard
Time
30-60 minutes
Tools Used
Socket set, Wrench Set, torque wrench
I removed the engine from the deck. I disassembled the engine, I replaced the piston rings and the head gasket, resurfaced the cylinder head surfaces and reassembled the engine. No more smoke.
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Smoking white smoke
Gilberto - September 24, 2020
Tool Type
Engine
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Power Drill, Socket set, Rubber mallet
Parts Used
Removed the starter rope assembly,carburetor and muffler valve cover push rods cleaned all parts replaced head gasket assembled every thing in its place finished started it back to square one,needs rings.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
