Wiseco 7700YC Piston Ring Set for Yamaha YZ250F / YZ250FX / WR250F - 77.00mm 2002 Yamaha YFM350FX Wolverine 4x4 Part Number: 7646W

Part Number: 7646W

2016 Arctic Cat ZR 9000 RR

Part Number: 808254

unlike the stock unit which only regulates 2 phases

Wiseco 7700YC Piston Ring Set for Yamaha YZ250F / YZ250FX / WR250F - 77.00mm 2002 Yamaha YFM350FX Wolverine 4x4 Part Number: 7646WWiseco Performance Piston Rings Performance Piston Rings Titanium Nitride coated for increased durability. These rings resist wear from the exhaust bridge and are designed for extreme racing conditions. These rings maintain their size and geometry for exceptional ring seal providing sustained peak performance in race applications. Compatible with Wiseco branded pistons ONLY!!!! Manufacturer in the USA Note: Ring Sets come "Per Piston" and may be only