JE, Yamaha, YFM350 Warrior / Raptor / Grizzly, 10.50:1, 85.00 mm Bore, 1 Cyl. Piston Kit
JE Part# 222085
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for ATV engines. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From motocross to dirt track and everything in between, JE Pistons’ performance is proven with every handful of throttle and wave of the checkered flag. Equip your quad with the best in forged pistons.
Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
Designed specifically for each engine and use application to provide optimized performance durability
Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
Made 100% in the USA
Piston Series |
JE Pistons |
Cylinder Head |
2 VALVE |
Bore Diameter |
85.00 MM |
Compression Ratio Actual |
10.50:1 |
Piston Head Type |
Dome |
Piston Volume |
0.00 CC |
Piston Material |
2618 |
Forging Type |
Round |
Piston Average Weight |
279 GR |
Ring Set Included |
Yes |
Top Compression Ring Thickness |
0.0400 IN |
Second Compression Ring Thickness |
0.0480 IN |
Oil Ring Thickness |
0.111 IN |
Wrist Pin Material |
5115 Low Carbon Steel, Case Hardened |
Wrist Pin Length |
2.250 IN |
Wrist Pin Wall Thickness |
0.120 IN |
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