WSM Platinum Series Piston Kit For Yamaha YFZ350 1987-2006 +0.50 mm Simpson Visors Manufacturer part number: AB18-3289

Manufacturer part number: AB18-3289

Manufacturer part number: 930-0101

XL and 2XL)

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WSM Platinum Series Piston Kit For Yamaha YFZ350 1987-2006 +0.50 mm Simpson Visors Manufacturer part number: AB18-3289The WSM Platinum Series Piston Kit For Yamaha YFZ350 1987 2006 +0. 50 mm is part of the latest collection from WSM. Features: Quality and construction that meets or exceeds OEM Skirts have a nonabrasive, expansion retarding MoS2 (Molydenum Disulfide) coating to reduce heat and friction for added power and longevity MoS2 coating actually draws heat through piston walls and out the bottom Specially hardened tops add strength to ring grooves Features