The Wiseco 3425XC Piston Ring Set is a high-performance 87.00mm replacement kit. As with all Wiseco rings, these are engineered with specific dimensions and are compatible only with Wiseco pistons. They will not fit OEM or other aftermarket brands.

Vehicle Fitment

This ring set is widely used for several popular off-road, ATV, and vintage street models:

• Honda:

  • TRX400EX / Sportrax / TRX400X: 1999–2014 (Commonly used for 416cc big bore kits)

  • XR400R: 1996–2004

  • TRX400 Foreman 4x4: 1995–2003

• Yamaha:

  • XT350 / TT350: 1985–1998

  • XT500 / TT500 / SR500: 1976–1981

• Kawasaki:

  • KVF750 Brute Force: 2005–2011

  • Teryx 750: 2008–2011

• Ducati:

  • 900 SS / SD 900 Darmah: 1983

Technical Specifications

The 3425XC set features a specialized 3-ring design for superior compression and oil management:

• Bore Size: 87.00mm

• Top Ring: 1.0mm thickness, made of chrome-faced alloy steel for high-heat durability.

• Second Ring: 1.2mm thickness, made of phosphate-coated cast iron with a tapered face for efficient oil scraping.

• Oil Ring: 2.8mm thickness, 3-piece stainless steel assembly.

• Bore Compatibility: Safe for use in cast iron, Nikasil, boron composite, and Electrofusion cylinders. Do not use in chrome-plated bores.