The Hot Cams 8400008-3 Titanium Intake Valve is designed for reliable performance and precise fitment in select Yamaha sport ATV applications. This forged intake valve is precision machined to support accurate installation and consistent valvetrain operation. It is compatible with OEM keepers and retainers, making it a practical replacement for service and engine rebuild projects.
Manufactured to meet or exceed OEM specifications and standards, the Hot Cams 8400008-3 valve is built for dependable use in demanding off-road conditions. Its titanium construction helps provide a lightweight valvetrain component while maintaining the strength required for performance-oriented Yamaha engines. Verify existing valve-train components and service requirements before installation.
Fitment includes the 2011 Yamaha YFZ450X SE and the 2009–2017 Yamaha YFZ450R. The manufacturer part number is 8400008-3, and the vendor part number is 8400008-3. This Hot Cams intake valve is intended for the intake position and should be installed by a qualified technician using the applicable Yamaha service procedures and specifications.
Features:
- Forged titanium construction for a lightweight, durable intake-valve design
- Precision machined for accurate fit and consistent valvetrain operation
- Compatible with OEM keepers and retainers
- Designed and manufactured to meet or exceed OEM specifications and standards
- Fits 2011 Yamaha YFZ450X SE and 2009–2017 Yamaha YFZ450R models
- Brand: Hot Cams
- Manufacturer part number: 8400008-3
- Vendor part number: 8400008-3
Fitment:
2003 Yamaha WR450F
2003 Yamaha YZ450F
2004 Yamaha WR450F
2004 Yamaha YFZ450
2004 Yamaha YZ450F
2005 Yamaha WR450F
2005 Yamaha YFZ450
2005 Yamaha YZ450F
2006 Yamaha WR450F
2006 Yamaha YFZ450
2006 Yamaha YFZ450 Bill Balance Edition
2006 Yamaha YZ450F
2007 Yamaha WR450F
2007 Yamaha YFZ450
2007 Yamaha YFZ450 Bill Balance Edition
2007 Yamaha YFZ450 SE
2007 Yamaha YZ450F
2008 Yamaha WR450F
2008 Yamaha YFZ450
2008 Yamaha YFZ450 SE
2008 Yamaha YZ450F
2009 Yamaha WR450F
2009 Yamaha YFZ450
2009 Yamaha YFZ450R
2009 Yamaha YFZ450R SE
2009 Yamaha YZ450F
2010 Yamaha WR450F
2010 Yamaha YFZ450R
2010 Yamaha YFZ450R SE
2010 Yamaha YFZ450X
2010 Yamaha YFZ450X Bill Ballance
2011 Yamaha WR450F
2011 Yamaha YFZ450R
2011 Yamaha YFZ450R SE
2011 Yamaha YFZ450X
2011 Yamaha YFZ450X SE
2012 Yamaha WR450F
2012 Yamaha YFZ450R
2012 Yamaha YFZ450R SE
2013 Yamaha WR450F
2013 Yamaha YFZ450R
2013 Yamaha YFZ450R SE
2014 Yamaha WR450F
2014 Yamaha YFZ450R
2014 Yamaha YFZ450R SE
2015 Yamaha WR450F
2015 Yamaha YFZ450R
2015 Yamaha YFZ450R SE
2016 Yamaha YFZ450R
2016 Yamaha YFZ450R SE
2017 Yamaha YFZ450R
2017 Yamaha YFZ450R SE
2018 Yamaha YFZ450R
2018 Yamaha YFZ450R SE
2019 Yamaha YFZ450R
2019 Yamaha YFZ450R SE
2020 Yamaha YFZ450R
2021 Yamaha YFZ450R
2022 Yamaha YFZ450R
2023 Yamaha YFZ450R
2024 Yamaha YFZ450R
2025 Yamaha YFZ450R