Wiseco Honda XR400R 1996-2004 Piston Kit with Gaskets 88.00mm PK1040

A piston kit is one of the most critical components in any top-end rebuild—get it wrong and you're looking at catastrophic engine failure. The Wiseco Honda XR400R Piston Kit delivers the durability and precision you need to restore full compression and reliable performance across the 1996-2004 model range. Whether you're refreshing a worn engine or building a race-ready platform, this complete kit eliminates guesswork by including everything required for a proper installation.

Wiseco engineered these pistons from high-silicone forged material, which resists thermal expansion and maintains structural integrity under sustained load. The included rings, wrist pins, and circlips are matched specifically to these pistons—a critical detail that ensures proper ring seal and longevity. Installation is straightforward for anyone with basic engine rebuild experience, and the thermal performance means consistent horsepower delivery whether you're trail riding or pushing hard on the track.

• 88.00mm bore diameter
• Fits 1996-2004 Honda XR400R
• Forged high-silicone construction
• Complete top-end gasket set included
• Matched Wiseco ring set
• Wrist pins and circlips included
• Bolt-on installation
• High thermal resistance rated
• MPN: PK1040