C7798,4811M10200,4966M10200,5KM-11310-00-00,80-82600,80-82600,YF-11181-00-00,810852,191070043070,3YF-11351-00-00,3YF-11181-00-00,2C6-11603-00-00,93450-24028-00,3YF-11631-00-X0,3YF-11633-01-00,90201-102G9-00,90105-10649-00,90105-09648-00,C7798-EST,DPR-8EA90-00-00,3YF-11310-01-00,261528,261527,272149,M1016B,8507D200<

Unlock the full power of your Yamaha 660 with this top-of-the-line Big Bore Top End Kit.

Squeeze every last ounce of power from your Yamaha 660 with this premium 686cc top end kit. The large 102mm +2mm bore size and top tier piston kit deliver a serious boost in horsepower and torque, This kit is engineered to handle the demands of high-performance riding, ensuring your Yamaha 660 can tackle the toughest terrain with confidence.

Fits Yamaha Raptor 660 / Rhino 660 / Grizzly 660 – All Years and Models

Drop In & Bolt OnReady. No case modification required.

The Best Parts In The Industry, At The BEST Price!

Cylinder / Wiseco Piston / Cometic Gaskets

Kit Includes:

• 102mm +2mm Big Bore Cylinder (1 year warranty)*
• Wiseco 102mm Big Bore Forged Piston Kit (includes OEM specpiston rings, wristpin, and circlips)
• Cometic Top End Gasket Kit with 102mm Big BoreMLS Head Gasket

1 year warranty for your peace of mind*

– The Best Parts. The Best Performance. The Best Price. BRAPPPPPPPPPP!