Top End Gasket Kit – Honda TRX350 Rancher (2000–2006)

Top End Gasket Kit for Honda TRX 350 TE/TM/FE/FM, 2000–2006. This aftermarket replacement kit provides all necessary gaskets and seals for a complete top-end rebuild, restoring proper sealing and engine reliability. Crafted for precise fit across the TRX350 engines, it supports a dependable rebuild that stands up to daily use and high-rpm operation.

Comprehensive Vehicle Fitment

 

Product Specifications

 

OEM Cross-Reference Information

OEM cross-reference numbers are provided for reference purposes only. These part numbers are commonly referenced for Honda top-end gasket sets and may appear across multiple aftermarket suppliers. Always verify fitment using your machine's exact model, year, and original part number before ordering.

What's Included

Based on standard top-end gasket kits for the TRX350 engine, this kit typically includes:

• Cylinder head gasket

• Cylinder base gasket

• Cylinder head cover gasket (valve cover)

• Exhaust gasket(s)

• Intake gaskets

• Valve stem seals

• Related O-rings and seals as required for complete top-end sealing

Note: Complete top-end rebuild kits from leading aftermarket manufacturers may include additional components such as pistons, rings, wrist pins, circlips, and spark plugs. This listing is for the gasket kit only unless otherwise specified.

Why Choose This Aftermarket Top End Gasket Kit?

• Direct-Fit Compatibility: Precision-engineered for Honda TRX350 Rancher models (2000–2006) including FE/FM/TE/TM variants .

• OEM Cross-Reference: Cross-references genuine Honda part numbers 12100-HN5-670, 13112-HN5-670, 12251-HN5-671, and 98069-57916 for confident replacement .

• Proven Aftermarket Support: Leading aftermarket brands manufacture compatible gasket kits:

  • Whites offers top-end gasket sets (GSHA2083) designed to meet and exceed OEM quality, made from high-quality materials as direct OEM replacements .

  • Wiseco provides top-end gasket kits (W6627) delivering OEM+ quality for convenient and reliable rebuild jobs, manufactured by leading gasket suppliers and inspected for quality and accuracy .

  • NICHE supplies multiple rebuild kit configurations with components that meet or exceed original Honda standards, requiring zero modifications to your ATV .

• Restores Compression: New head and base gaskets ensure proper cylinder sealing for optimal engine performance.

• Prevents Leaks: Complete sealing kit prevents oil seepage and maintains clean engine operation.

Complete Top-End Rebuild Benefits

• Provides complete top-end gasket coverage to seal critical junctions during rebuilds

• Direct aftermarket replacement quality with OEM cross-reference compatibility

• Cost-effective alternative to dealer-sourced OEM gaskets with proven durability

• Designed for accurate fit on Honda TRX350 2000–2006 variants, including Rancher lineups

Installation Notes:

• Ensure all mating surfaces are clean and free from old gasket material before installation.

• Follow manufacturer torque specifications and tightening sequences for cylinder head bolts.

• Use new gaskets only—do not reuse old gaskets once removed.

• Check valve clearance after head installation and adjust if necessary.

• After installation, run the engine and check for any signs of leaks.

• Verify your specific model and year before ordering, as the TRX350 was produced in multiple 2x4 and 4x4 configurations .

Why Upgrade?
Worn or damaged gaskets can cause compression loss, oil leaks, and contamination—leading to poor performance and potential engine damage. Restore your Honda TRX350 Rancher engine's sealing integrity with this quality aftermarket top end gasket set, designed to keep you working and riding with confidence.

Order your top end gasket kit today and get back on the trail with confidence.