The BOLT E-YF4-9805 Engine Fastener Kit is designed for select Yamaha four-stroke off-road motorcycles, providing replacement bottom-end hardware and model-specific top-end bolts. This kit helps refresh worn, damaged, or missing engine fasteners while maintaining a clean, consistent appearance throughout the engine assembly.
Fitment: This BOLT engine fastener kit fits the 1998 Yamaha YZ400F, 1999–2000 Yamaha WR400F, 1999 Yamaha YZ400F, 2000–2002 Yamaha YZ426F, 2001–2002 Yamaha WR426F, and 2003 Yamaha YZ450F. Verify the motorcycle model and year before ordering to ensure proper application.
Coverage: The kit includes hardware for crankcase covers, clutch cover, oil filter cover, crankcase, case saver, water pump, and various top-end locations depending on the specific Yamaha model. Supplied fasteners are intended to support a complete engine hardware refresh without requiring separate sourcing for multiple external mounting points.
Brand and part number: Manufactured by BOLT and identified by manufacturer part number E-YF4-9805, this engine fastener kit is built for practical service and restoration needs on compatible Yamaha applications. Use the included hardware in the appropriate locations and follow the motorcycle manufacturer’s service procedures for installation and torque specifications.
Features:
- Application: Engine fastener kit for select Yamaha four-stroke motorcycles
- Fitment: 1998 Yamaha YZ400F; 1999–2000 Yamaha WR400F; 1999 Yamaha YZ400F; 2000–2002 Yamaha YZ426F; 2001–2002 Yamaha WR426F; and 2003 Yamaha YZ450F
- Coverage: Includes bottom-end hardware for crankcase covers, clutch cover, oil filter cover, crankcase, case saver, and water pump
- Top-end hardware: Includes various top-end bolts according to the compatible Yamaha model
- Brand: BOLT
- Manufacturer part number: E-YF4-9805
Fitment:
1998 Yamaha YZ400F
1999 Yamaha WR400F
1999 Yamaha YZ400F
2000 Yamaha WR400F
2000 Yamaha YZ426F
2001 Yamaha WR426F
2001 Yamaha YZ426F
2002 Yamaha WR426F
2002 Yamaha YZ426F
2003 Yamaha WR450F
2003 Yamaha YZ450F
2004 Yamaha WR450F
2004 Yamaha YZ450F
2005 Yamaha WR450F
2005 Yamaha YZ450F
2006 Yamaha WR450F