If you're tackling a Honda TRX 400 FW ATV that's lost its punch due to worn engine internals, this oversize 0.50 piston kit is the precision-engineered solution you need to breathe new life into your ride. Designed specifically for Honda TRX 400 FW models from 1995 to 2003, this kit restores critical compression and smooth power delivery, helping you regain reliable performance on tough trails or farm chores. Say goodbye to sluggish acceleration and potential overheating issues, as swapping in this aftermarket piston ensures your engine runs with the efficiency and responsiveness it had when new. When your Honda TRX 400 FW starts showing signs of wear like reduced compression from piston ring gaps or cylinder scoring, this oversize 0.50 kit steps in to deliver a durable fix that keeps you rolling without breaking the bank. It tackles common problems such as oil consumption spikes and inconsistent throttle response by providing a tighter seal and better heat dissipation, making it a smart choice for avid riders who demand reliability on demanding terrain. As an aftermarket replacement, this piston is built with the same attention to detail as the originals but offers enhanced longevity through refined manufacturing processes, ensuring it holds up through repeated use on the trail or in the field.

Comprehensive Vehicle Fitment

Manufacturer	Models / Series	Years / Details
Honda	TRX400FW Sportrax	1995-2003; Direct fit for standard engine configurations, including models with manual transmission

Product Specifications

Attribute	Details
OEM Reference Part Numbers	13103-HM7-000
Type	Piston Kit OS +0.50 oversize
Manufacturer	Aftermarket Replacement
Application	Honda TRX 400 FW (1995-2003) engine rebuilds
Material	High-strength forged aluminum alloy for superior heat resistance and durability
Bore Size	84.50 mm (oversize configuration for precise cylinder matching)
Piston Pin Diameter	20 mm, designed for low-friction performance and easy installation
Compression Height	32 mm, optimized to maintain original compression ratios and improve efficiency

OEM & Aftermarket Cross-Reference Information

Part Number	Brand / Type	Cross-Reference Notes
13103-HM7-000	OEM Standard	Original specification for Honda TRX 400 FW; this aftermarket kit matches dimensions and performance for seamless upgrades
Equivalent Aftermarket Codes (e.g., Generic 13103 Series)	Aftermarket Standard	Direct-fit alternatives from various suppliers; ensures compatibility with oversize bore requirements for engine refreshes

What's Included

This piston kit comes with all the essential components for a straightforward engine rebuild.

• Oversize 0.50 Piston: Precision-machined to 84.50 mm bore for optimal fit.
• Piston Rings: Three-piece set including compression and oil control rings for enhanced sealing.
• Piston Pin: 20 mm diameter pin with smooth finishes to reduce wear.
• Circlips: Two retaining clips for secure pin installation.