Wiseco PWR148101 Garage Buddy Complete Engine Rebuild Kit Yamaha - 101mm 660

The Wiseco PWR148-101 Garage Buddy Complete Engine Rebuild Kit is a comprehensive, all-in-one solution for a full top and bottom end engine rebuild on the Yamaha YXR66F Rhino 660 and YFM660F Grizzly 4x4. Engineered to a 101mm bore with a 9.9:1 compression ratio, this kit delivers everything needed to restore your engine to peak operating condition in a single box.

Kit Includes:

• Complete crankshaft assembly — designed entirely by Wiseco in-house engineers with all assembled dimensions, clearances, and specifications determined for the exact application
• OEM-quality main bearings — case hardened for maximum life and smooth operation at high RPMs
• All engine gaskets, seals, and O-rings — manufactured from premium materials to meet or exceed OEM sealing standards
• Wiseco standard series forged piston kit — includes piston, rings, pin, and clips at stock 9.9:1 compression ratio for improved reliability and longevity
• Cam chain (four-stroke application)
• Hour meter with mounting bracket and decal — to track engine hours and critical service intervals

Key Features:

• Wiseco is the only U.S. aftermarket piston manufacturer that produces pistons exclusively using the forging process
• Connecting rod features shot peening, oil slots, and coated bronze thrust washers
• Rod top end is bushed for oil retention, eliminating pin galling
• Bottom end rod bores and crank pin bearings are case hardened to 58–62 RC for an optimized bearing running surface and extended assembly life
• Corrosion-resistant surface treatment prevents pitting during long-term use or storage
• 3D design techniques and finite element modeling software ensure maximum strength and minimal weight

The Wiseco Garage Buddy kit eliminates the hassle of sourcing individual engine components — everything required for a complete engine rebuild is included in one box, engineered to meet or exceed OEM standards for the Yamaha 660 platform.