Compatible with OEM for Yamaha Piston 4BD-11631-00-Y0, 29U-11631-00-Y0 Compatible with OEM for Yamaha Base Gasket 5VC-11351-02-00, Base Gasket 5VC-11351-02-00 Compatible with the 1983-1986 Yamaha Tri Moto 225 YTM225DR, 1986-1988 Yamaha Moto 4 YFM225, 1989-1991 Yamaha Moto 4 YFM250, 1992-1998 Yamaha Timberwolf 250 YFB250, 1994-2000 Yamaha Timberwolf 250 YFB250FW 4x4, 1999-2004 Yamaha Bear Tracker 250 YFM250X, 2001-2002 Yamaha Bear Tracker 250 YFM250XH Hunter Edition Piston Kit Complete with Piston, Rings, Needle Bearing, Wristpin and Circlips Piston Diameter 70.96mm / Piston Height 46.96mm Included Items in This Bundle:

(QTY 1) NICHE 2-DR7EA Spark Plug

Substitute For OEM Part Numbers(s): NGK-DR7EA-00-00, NGK-D7EA0-00-00, DR7-EA000-00-00, D7E-A0000-00-00, 94701-00345-00, 94700-00852-00

(QTY 1) NICHE 519-KGS2243K Gasket Kit

Substitute For OEM Part Numbers(s): 5VC-11351-02-00, 5VC-11351-01-00, 5VC-11351-00-00, 5MP-11351-00-00, 5LB-11351-00-00, 5H0-11351-01-00, 59V-11181-00-00, 4CS-11351-00-00, 4BE-11351-00-00, 4BD-11351-00-00, 3GH-11181-00-00

(QTY 1) NICHE 519-KPS2242T Piston Kit

Substitute For OEM Part Numbers(s): 4BD-11638-00-00, 4BD-11636-00-00, 4BD-11631-00-Y0, 29U-11638-00-00, 29U-11636-00-00, 29U-11631-00-Y0

Fits The Following OEM Models:

Yamaha Bear Tracker 250 Hunter Edition: 2001-2002
Yamaha Bear Tracker 250: 1999-2004
Yamaha Moto 4 225: 1986-1988
Yamaha Moto 4 250: 1989-1991
Yamaha Timberwolf 250 2WD: 1992-1998
Yamaha Timberwolf 250 4X4: 1994-2000
Yamaha Tri Moto 225: 1983-1986