Wiseco Forged Series Piston Kit with Gaskets - Honda TRX400EX/TRX400X/XR400R (1996-2014) - 85.00mm Bore (Standard) - 4-Stroke
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Wiseco Forged Series Piston Kit with Gaskets - Honda 400 Platform - Standard Bore
Premium Wiseco Forged Series piston kit for Honda TRX400EX Sportrax, TRX400X, and XR400R. STANDARD BORE (85.00mm) - direct replacement for ATV and off-road applications!
Kit Includes
- Forged Series Piston
- Ring Set
- Wrist Pin
- Wrist Pin Retainer Set
- Complete Gasket Kit
Key Features
- Forged Series - premium 2618 aluminum alloy
- 11.0:1 compression ratio - sport-tuned
- Standard bore - no cylinder work required
- Cross-platform fitment (ATV + Off-Road motorcycle)
- 19 years of combined fitment!
Piston Specifications
- Bore Size: 85.00 mm (Standard)
- Piston Diameter: 84.95 mm
- Stroke Length: 70.00 mm
- Compression Ratio: 11.0:1
- Material: 2618 Aluminum Alloy
- Skirt Coating: Non-Coated
Engine Specifications
- Displacement: 397cc
- Engine Type: 4-Stroke
- Weight: 2.05 lbs
Fitment
- Honda TRX400X: 2009, 2012-2014
- Honda TRX400EX Sportrax: 2000-2008
- Honda TRX400EX FourTrax: 1999
- Honda XR400R: 1996-2004
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
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