Rareelectrical Piston Pin Compatible With 2001-2005 Yamaha Raptor 660 Sport Atv 22Mm Wrist Pin 3Yf-11633-01-00 Top End Rebuild 660Cc 4-Stroke 3Yf-11633-00-00 New Outer Case-Hardened Compression Always

Piston Pin (Wrist Pin) — 22mm — Yamaha Grizzly / Raptor / Rhino 660 Specifications: Outer Diameter: 22mm Material: Case-hardened chrome steel — heat treated for maximum durability Surface Finish: Mirror-polished to minimize friction and wear Fitment: Direct OEM replacement — drop-in fit Engine Compatibility: 660cc SOHC 4-Valve 4-Stroke Single Cylinder — Liquid/Air Cooled Bore × Stroke: 100mm × 84mm — Compression: 9.1:1 Same engine across all Yamaha 660 models: Grizzly, Raptor, Rhino All special editions included (Ducks Unlimited, Hunter, LE, SE, Wetland) Function: The piston pin (wrist pin) connects the piston to the connecting rod small end, transferring combustion force while allowing the rod to pivot. A worn or scored pin causes knocking, accelerated bore wear, and potential catastrophic failure. When to Replace: During any top-end rebuild (piston, rings, cylinder re-bore/re-plate) When pin shows visible wear, scoring, discoloration, or blue heat marks When pin has measurable play in the connecting rod small end bearing Installation Notes: Always replace piston pin circlips — never reuse old circlips Apply assembly oil to pin before installation Ensure circlips are fully seated — improper seating causes engine damage Verify connecting rod small end bearing condition before reassembly 660cc singles produce high loads — use proper torque values during assembly ADDITIONAL CROSS-REFERENCES: Compression Ratio: 9.1:1 Same engine platform across all Grizzly 660, Raptor 660, and Rhino 660 models Includes all special editions (Ducks Unlimited, Hunter, LE, SE, Wetland, Exploring)

• Compatible with Yamaha. Please verify your OEM part number from your original unit to help ensure fitment.
• Replaces: Manufacturer Part Number: / 04.2270 / Cross-Reference Oem Part Numbers: / Yamaha: 3Yf-11633-00-00 / Yamaha: 3Yf-11633-01-00 / Pin Specifications: / Outer Diameter: 22Mm / Material: Case-Hardened Chrome Steel / Engine Specifications: / 660Cc Sohc 4-Valve 4-Stroke Single Cylinder — Liquid/Air Cooled / Bore × Stroke: 100Mm × 84Mm / Compression Ratio: 9.1:1 / Same Engine Platform Across All Grizzly 660, Raptor 660, And Rhino 660 Models / Notes: /
• Applications: Yamaha Models: / Grizzly 660Cc 4-Stroke Atv — 2002-2008 / Grizzly Ducks Unlimited 660Cc 4-Stroke Atv — 2006 / Grizzly Hunter 660Cc 4-Stroke Atv — 2002-2008 / Grizzly Le 660Cc 4-Stroke Atv — 2004 / Grizzly Se 660Cc 4-Stroke Atv — 2005-2006 / Grizzly Wetland 660Cc 4-Stroke Atv — 2004-2005 / Raptor 660Cc 4-Stroke Atv — 2001-2005 / Raptor Le 660Cc 4-Stroke Atv — 2002-2004 / Raptor Se 660Cc 4-Stroke Atv — 2005 / Rhino 660Cc 4-Stroke Utv — 2004-2007 / Rhino Ducks Unlimited
• Applications: 660Cc 4-Stroke Utv — 2007 / Rhino Exploring 660Cc 4-Stroke Utv — 2007 / Rhino Hunter 660Cc 4-Stroke Utv — 2004-2007 / Rhino Se 660Cc 4-Stroke Utv — 2006-2007...
• Piston Pin Source: Aftermarket