Cylinder Kit 90.00mm Honda 98-04 TRX 450 S Es FE Fm 12100-HN0-A00

This top end rebuild kit is designed for all Honda TRX450 S/ES/FE/FM Foreman 450 4x4 models from 1998 to 2004. It includes a standard bore cylinder, piston assembly, gaskets, and related components for restoring engine performance with OEM-level fit and reliability.

Features

• Unmatched reliability and performance from high-tech materials
• Meets or exceeds OEM quality
• Direct OEM replacement
• Easy to install; professional installation recommended if unsure

Specifications

• Displacement: 450cc
• Bore Size: STD 90mm
• Piston Height: 55.6mm
• Cylinder Material: High-grade cast aluminum
• Piston Material: Forged aluminum

Kit Includes

• 1x Cylinder
• 1x Standard Size Piston
• 1x Piston Ring Kit
• 1x Wristpin
• 2x Circlips
• 1x Cylinder Head Gasket
• 1x Cylinder Block Gasket
• 1x Exhaust Gasket
• 1x O-Ring
• 1x Intake Gasket

Cross-Reference OEM Part Numbers

• Cylinder: 12100-HN0-A00
• Cylinder Base Gasket: 12191-HM7-013
• Cylinder Head Gasket: 12251-HN0-A01
• Cylinder Head Cover Gasket: 12315-HM7-005
• Piston: 13101-HN0-A00
• Ring Set: 13010-HN0-A02
• Pin, Piston: 13111-HN0-A00
• Clip, Piston: 13112-MAT-000
• Valve Seals: 12209-KL4-005
• O-Ring (37x2.4): 91305-HN0-A00
• Exhaust Gasket: 18291-MN4-920

Vehicle Fitments

• Honda TRX450 S Foreman 450 4x4 1998–2004
• Honda TRX450 ES Foreman 450 4x4 1998–2004
• Honda TRX450 FE Foreman 450 4x4 1998–2004
• Honda TRX450 FM Foreman 450 4x4 1998–2004