Yamaha YFM 660 Raptor Bottom End Kit - Hot Rods - `01-`05. A complete bottom-end rebuild kit engineered to replace the crankshaft, bearings, seals and gaskets needed to refresh the lower end of your 2001–2005 Raptor 660.

This Hot Rods kit arrives as a single package with the critical components required to rebuild the bottom end: crankshaft, main bearing and seal kit, and a full top and bottom end gasket set with seals. It’s designed for riders and mechanics who want a straightforward, parts-complete option for restoring engine reliability and reducing downtime compared with sourcing individual OEM pieces.

Features

• Complete crankshaft assembly included
• Main bearing and seal kit supplied
• Full top and bottom end gasket kit with seals
• Fits Yamaha YFM 660 R / Raptor 660 models 2001–2005

Some applications offer a stroker crankshaft option; check fitment for your specific year and model before ordering. Using a consolidated kit like this can simplify installation and troubleshooting because all related components are matched and packaged together.

If you have questions or want help confirming fitment, call us directly — we’re happy to assist. We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call Austin at 512-982-9393 or California at 562-981-6800.

If you plan to purchase multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov