Yamaha Warrior Raptor 350 YFM350 YFM350R 87-13 Stock 83MM 10.25:1 Wiseco Piston

4419M08300, 209291, M1012, 40109M08300, 8605DB, NA-40005, 5UH-11638-00-00, 5UH-11636-00-00, 5UH-11631-00-C0, 1YW-11638-01-00, 1YW-11636-01-00, 1YW-11631-01-Y0, 1UY-11638-01-00, 1UY-11636-01-00, 1UY-11631-01-Y0, 23103100

Yamaha Warrior & Raptor 350 Wiseco Piston Kit – 83mm, 10.25:1 CR

Wiseco Piston Part# 4419M08300, Ring Set #3268XC, Wrist Pin #S376, CirClip #CW19

Boost your Yamaha Warrior or Raptor 350 engine with the Wiseco 4-Stroke Forged Piston Kit. Featuring an 83mm bore, 10.25:1 compression ratio, and American craftsmanship, this high-performance upgrade delivers more power, reliability, and efficiency for every ride.

Unmatched Performance Upgrade for Your Yamaha Warrior & Raptor

Elevate your riding experience with the Wiseco 4 Stroke Forged Series Piston—engineered specifically for the Yamaha Warrior and Raptor YFM350 models (1987–2013). Featuring an optimal 10.25:1 compression ratio and an 83mm bore, this piston kit is crafted to deliver precision power, better torque, and enhanced throttle response. Whether you're conquering rugged trails or dominating the track, Wiseco’s cutting-edge design ensures a smoother, harder-hitting engine performance you won’t want to live without. For riders seeking more power and longevity without compromising reliability, this Wiseco piston is the perfect choice.

Fitment:

MADE IN USA