SKU: 29083122797

1989 Honda ATV TRX300 FOURTRAX Cylinder Piston Top End Gasket Kit 12000-HC4-000 12251-HA0-004

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Description

1989 Honda ATV TRX300 FOURTRAX Cylinder Piston Top End Gasket Kit 12000-HC4-000 12251-HA0-0041988 2000 Honda TRX300 Fourtrax FW 4x4 2x4 Cylinder Piston Top End Gasket Kit Features: Kit includes cylinder, spark plugs, oil filter, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Cast piston has super high silicone content for additional strength. Piston skirts are Molybdenium Teflon coated to minimize resistance wear and provide extended life. Piston dome is anodized for superior heat resistance and longer

1988-2000 Honda TRX300 Fourtrax FW 4x4 2x4 Cylinder Piston Top End Gasket Kit

Features:
Kit includes cylinder, spark plugs, oil filter, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Cast piston has super-high silicone content for additional strength.
Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life.
Piston dome is anodized for superior heat resistance and longer lifespan.
The gaskets use performance materials to increase durability and provide greater reliability.
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 74.00 mm.
All of the components within this kit are bolt-on ready for a hassle free installation.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Cylinder Material: High-Grade Cast Aluminum
Piston Material: Forged Aluminum
Bore Size: STD 74.00mm
Spark Plug Dimension:
Thread Diameter: 12mm
Thread Length: 19mm
Electrode Gap:0.9mm

Replacement Part Number:
Cylinder: 12000-HC4-000, 12100-HC4-000
Cylinder head gasket: 12251-HA0-004
Cylinder base gasket: 12191-HC4-900
Cylinder o-ring(78.3x2mm): 91304-HA0-003
Valve tappet cover o-rings(57x3mm): 12392-HC4-005
Cylinder o-ring(33.7x2.4mm): 91305-HA0-680 (Sits Between Cylinder and Intake Manifold)
Intake pipe gasket: 18291-MN4-920
Valve stem seals: 12209-KL4-005
Oil filter: 15412-HM5-A10

FITMENT:
Fit for Honda TRX 300 2x4 & 4x4 FW four-wheelers 1988-2000
(This is for the Utility Model ATVs with the rack on the front and the back, NOT the race model ATVs)

Fit for 1988 Honda ATV TRX300 FOURTRAX 300
Fit for 1988 Honda ATV TRX300FW FOURTRAX 4X4
Fit for 1989 Honda ATV TRX300 FOURTRAX
Fit for 1989 Honda ATV TRX300FW FOURTRAX 4X4
Fit for 1990 Honda ATV TRX300
Fit for 1991 Honda ATV TRX300
Fit for 1991 Honda ATV TRX300FW
Fit for 1992 Honda ATV TRX300
Fit for 1992 Honda ATV TRX300FW
Fit for 1993 Honda ATV TRX300
Fit for 1993 Honda ATV TRX300FW
Fit for 1994 Honda ATV TRX300
Fit for 1994 Honda ATV TRX300FW
Fit for 1995 Honda ATV TRX300
Fit for 1995 Honda ATV TRX300FW 4X4
Fit for 1996 Honda ATV TRX300 FOURTRAX
Fit for 1996 Honda ATV TRX300FW FOURTRAX 4X4
Fit for 1997 Honda ATV TRX300
Fit for 1997 Honda ATV TRX300FW 4X4
Fit for 1998 Honda ATV TRX300
Fit for 1998 Honda ATV TRX300FW 4X4
Fit for 1999 Honda ATV TRX300 FOURTRAX
Fit for 1999 Honda ATV TRX300FW FOURTRAX 4X4
Fit for 2000 Honda ATV TRX300
Fit for 2000 Honda ATV TRX300FW 4X4

Package includes:
1x Cylinder
1x Standard Size Piston
1x Piston Ring Set
1x Wristpin
2x Circlips
1x Oil Filter
1x Cylinder Head Gasket
1x Cylinder Base Gasket
1x Exhaust Gasket
2x Valve Stem Seals
1x Exhaust Gasket
1x Cylinder O-ring(78.3x2mm)
2x Valve Tappet Cover C-rings(57x3mm)
1x Sits Between Cylinder and Intake Manifold O-ring(33.7x2.4mm)
1x Exhaust Pipe Gasket
2x Spark Plug

Note:
Ring end gaps are checked prior to shipment for proper sizing.
Please check out the product and size fits your motorcycle or not before you purchase.

Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29083122797

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4.7 ★★★★★
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Product Reviews
F
Fulano y Fulanita
Massapequa, US
★★★★★ 4
Slight odor, more flexible than I expected
Color: Gold, Color: Gold
These looked like they were going to be heavy duty, but they were more flexible than I expected (see video clip). They probably still will work well, but if you’re poking your fork into something stiff, expect that the fork might bend some. There was a slight chemical odor when I opened the package, and I’m not a fan of that. As someone with MCS, I have to avoid exposure to fragrances and other harmful chemicals, and it makes me wonder what these are coated with. The gold might be cute for the aesthetic you’re going for with a particular gathering or party, but I find it unnecessary. I would rather go with the real heavy duty ones that are clear plastic from a club warehouse rather than these gold ones. I feel that these are overpriced for the quality, but not a bad price if all you’re going for is the gold aesthetic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
S
Sara D
Phoenix, US
★★★★★ 5
Nice, high end look, disposable
Color: Gold, Color: Gold
I hate to spend a lot of money on something that's just going to be thrown away, so typically buy dollar store disposable silverware for parties and gatherings. But every once in a while, you want something more upscale or high end looking. Enter this pricy but pretty plastic silverware. It is perfect for a wedding, anniversary, shower or other event where you want a nicer look instead of basic. It is sturdy. You won't have to worry about it breaking as someone spears a bite of chicken. It looks great! There's only so much you can do with plastic ware but for what it is, it looks really nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
G
Verified Purchase
Gerry Cloyd
Dallas, US
★★★★★ 5
Great Product
Pattern Name: Plastic Spoons
Thank you as order.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
A
Verified Purchase
Angelica
Boise, US
★★★★★ 5
Empaques individuales
Pattern Name: Plastic Spoons
Estás cucharas son excelentes porque ya vienen en su empaque individual . La calidad es buena , hay otras que son más fuertes que esta pero aún así no está mal por el precio .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
J
Verified Purchase
Jose Lopez
Fort Morgan, US
★★★★★ 5
Great affordable product
Pattern Name: Plastic Spoons
These spoons are perfect for our acai shop! They are always high quality, and the price point is perfect. They aren't flimsy or cheap like others you find.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 24, 2025

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