Honda TRX300 Piston Kit - Wiseco - 10.25:1 CR - `88-`00 is a forged piston kit designed specifically for Honda TRX300 models from 1988 through 2000. This complete kit supplies the piston hardware needed for a reliable rebuild or upgrade.

Wiseco’s Forged Series pistons are made for 4-stroke ATV applications and are engineered to offer consistent strength and long service life. This kit is sized to a 76.00 mm bore with a 10.25:1 compression ratio and fits both 2WD and 4WD TRX300 models in the stated years. Each kit includes the piston, wrist pin, rings, and circlips so you have the components required for installation. The forged construction is chosen for durability under higher stress situations and for consistent dimensional control during machining and operation.

Features

• Complete kit: piston, wrist pin, rings and circlips included
• Forged construction for improved strength and service life
• 76.00 mm bore size, 10.25:1 compression ratio
• Fitment: Honda TRX300 1988–2000, 2WD and 4WD applications

Use this kit when rebuilding or refreshing a TRX300 engine; the included hardware simplifies replacement and reduces parts sourcing. Proper installation and measurement of ring gaps and clearances is recommended—these pistons are intended for mechanics and enthusiasts who will verify tolerances during assembly.

If you have questions, call us directly — we’re happy to help. We have two service locations offering installation and customization: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for fitment questions, installation booking, or parts advice. If you are thinking about purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

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