BOLT E-YF4-0609 Engine Fastener Kit for Yamaha

The BOLT E-YF4-0609 Engine Fastener Kit is designed for selected Yamaha YZ450F and WR450F applications. This kit provides engine fasteners for key external and bottom-end locations, helping support organized replacement or refresh work during engine service.

For four-stroke engines, the kit includes bottom-end hardware for crankcase covers, the clutch cover, oil filter cover, crankcase, case saver, and water pump, along with various top-end bolts depending on the model. The kit fits the 2006–2009 Yamaha YZ450F and selected 2007–2013 Yamaha WR450F models.

Use the BOLT E-YF4-0609 part number to verify application before ordering. This product description reflects the supplier-provided fitment and component coverage.

Features:

• Engine fastener kit: Provides hardware for selected Yamaha four-stroke engine applications.
• Bottom-end coverage: Includes hardware for crankcase covers, clutch cover, oil filter cover, crankcase, case saver, and water pump.
• Top-end hardware: Includes various top-end bolts depending on the model.
• Fitment: Fits 2006–2009 Yamaha YZ450F models and selected 2007–2013 Yamaha WR450F models.
• Brand and part number: BOLT E-YF4-0609.

Fitment:
Yamaha WR450F 2007
Yamaha WR450F 2008
Yamaha WR450F 2009
Yamaha WR450F 2010
Yamaha WR450F 2011
Yamaha WR450F 2012
Yamaha WR450F 2013
Yamaha WR450F 2014
Yamaha WR450F 2015
Yamaha YZ450F 2006
Yamaha YZ450F 2007
Yamaha YZ450F 2008
Yamaha YZ450F 2009