The Hot Cams 8400005-1 Titanium Exhaust Valve is a performance replacement component designed for reliable service in compatible Yamaha YZ250F engines. Manufactured by Hot Cams, this exhaust valve is engineered to meet or exceed OEM specifications and standards, making it a suitable choice for engine rebuilding, valve train maintenance, or replacement of a worn or damaged exhaust valve.
Precision machined from forged titanium, the valve is built for strength, accurate fitment, and consistent operation under demanding engine conditions. It is compatible with OEM keepers and retainers, helping simplify installation when servicing the cylinder head with original-equipment valve train hardware. The Hot Cams titanium construction provides a durable, lightweight solution for applications where dependable valve performance is required.
Fitment includes 2001–2010 Yamaha YZ250F models. Verify the model year and engine application before installation to ensure proper compatibility. The manufacturer part number is 8400005-1, and the vendor part number is also 8400005-1.
Features:
- Forged titanium construction for strength and reduced valve weight
- Precision machined for accurate fitment and dependable operation
- Compatible with OEM keepers and retainers
- Designed and manufactured to meet or exceed OEM specifications and standards
- Fits 2001–2010 Yamaha YZ250F models
Fitment:
2001 Yamaha WR250F
2001 Yamaha YZ250F
2002 Yamaha WR250F
2002 Yamaha YZ250F
2003 Yamaha WR250F
2003 Yamaha YZ250F
2004 Yamaha WR250F
2004 Yamaha YZ250F
2005 Yamaha WR250F
2005 Yamaha YZ250F
2006 Yamaha WR250F
2006 Yamaha YZ250F
2007 Yamaha WR250F
2007 Yamaha YZ250F
2008 Yamaha WR250F
2008 Yamaha YZ250F
2009 Yamaha WR250F
2009 Yamaha YZ250F
2010 Yamaha WR250F
2010 Yamaha YZ250F
2011 Yamaha WR250F
2011 Yamaha YZ250F
2012 Yamaha WR250F
2012 Yamaha YZ250F
2013 Yamaha WR250F
2013 Yamaha YZ250F