Compatible with Piston: Yamaha 1YW-11636-01-00, 1YW-11638-01-00, 1YW-11631-01-Y0, 5UH-11631-00-C0, 5UH-11636-00-00, 5UH-11638-00-00, 1UY-11631-01-Y0, 1UY-11638-01-00, 1UY-11636-01-00 Compatible with Cylinder: Yamaha 1UY-11310-03-00, 5YT-11310-00-00, 4WU-11310-00-00, Head Gasket: Yamaha 1UY-11181-01-00, 1UY-11181-00-00, Baase Gasket: Yamaha 4KB-11351-00-00, 3GD-11351-00-00 Compatible with Yamaha 1987-2004 Warrior 350, 1987-1999 Big Bear 350, 1995-2009 Wolverine 350 Compatible with Yamaha 2004-2011 Raptor 350, 1987-1995 Moto 4 YFM350ER Compatible with Yamaha 2004-2006 Bruin 350, 2007-2011 Grizzly 350 Cylinder Bore and Stroke 83.00mm x 64.50mm; Cylinder Material Aluminum; Cylinder Sleeve Coating None Included Items in This Bundle:

(QTY 1) NICHE 519-CCY2220L Engine Cylinder

Substitute For OEM Part Numbers(s): 5YT-11310-00-00, 4WU-11310-00-00, 1UY-11310-03-00

(QTY 1) NICHE 2-D8EA Spark Plug

Substitute For OEM Part Numbers(s): NGK-DR8ES-00-00, NGK-DR8EA-00-00, NGK-D8EA0-00-00, DR8-EA000-00-00, D8E-A0000-00-00, 94703-00333-00, 94701-00333-00, 94701-00157-00, 94700-00822-00, 94700-00333-00

(QTY 1) NICHE 519-KGS2220K Gasket Kit

Substitute For OEM Part Numbers(s): 4KB-11351-00-00, 3GD-11351-00-00, 1UY-11181-01-00, 1UY-11181-00-00

(QTY 1) NICHE 519-KPS2220T Piston Kit

Substitute For OEM Part Numbers(s): 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

Fits The Following OEM Models:

Yamaha Big Bear 350 2WD: 1996-1999
Yamaha Big Bear 350 4X4: 1987-1999
Yamaha Big Bear 350 Hunter Edition 4X4: 1999
Yamaha Bruin 350 2WD: 2004-2006
Yamaha Bruin 350 4X4: 2004-2006
Yamaha Bruin 350 Hunter Edition 4X4: 2004-2006
Yamaha Grizzly 350 2WD: 2007-2011
Yamaha Grizzly 350 4X4: 2007-2011
Yamaha Grizzly 350 Hunter Edition 4X4: 2008-2011
Yamaha Grizzly 350 Hunter Edition IRS 4X4: 2007-2011
Yamaha Grizzly 350 IRS 4X4: 2007-2011
Yamaha Moto 4 350: 1987-1995
Yamaha Raptor 350 Special Edition II: 2007
Yamaha Raptor 350 Special Edition: 2005-2007
Yamaha Raptor 350: 2004-2011
Yamaha Warrior 350: 1987-2004
Yamaha Wolverine 350 2WD Deep Purplish Blue Solid: 2009
Yamaha Wolverine 350 2WD Sport: 2007
Yamaha Wolverine 350 2WD: 2006-2009
Yamaha Wolverine 350 4X4: 1995-2005