Piston Kit Part Number:
MK1001141

Includes:
Piston, Piston Rings, Wristpin, Circlips (2), Needle Bearing, Head Gasket, Base Gasket, NGK Spark Plug

Direct Replacement For:
5UH-11638-00-00, 5UH-11636-00-00, 5UH-11631-00-C0, 4KB-11351-00-00, 1YW-11638-01-00, 1YW-11636-01-00, 1YW-11631-01-Y0, 1UY-11638-01-00, 1UY-11636-01-004KB-11351-00-00, 1UY-11631-01-Y0, 1UY-11181-01-00

This Part is known to be Compatible with the following vehicles:

Yamaha Bruin 350:
2004-2006
Yamaha Grizzly 350:
2008-2011
Yamaha Moto 4:
1987-1995
Yamaha Raptor 350:
2004-2011
Yamaha Warrior 350:
1987-2004
Yamaha Wolverine 350:
1996-2009
Providing you with the same reliability that you’ve come to expect from factory parts at an incredible price. The Piston, Gaskets and Hardware are manufactured to the same size and standards as your originals. Installation is as easy as referencing your factory service manual which provides you with suggested Ring-Gaps, Cylinder-Piston Clearance, Torque settings as well as technique for preparation. This kit includes a standard-sized cast Piston and Gasket Kit, giving you even more performance out of your machine.