The Hot Cams Exhaust Valve Steel, manufacturer part number 8400002-1 and vendor part number 688-84021, is a precision-engineered replacement valve designed for reliable performance in select Honda CRF450R applications. This forged steel valve is manufactured to meet or exceed OEM specifications and standards, providing a dependable solution for restoring proper exhaust valve function during engine service or rebuilding.
Precision machining helps support accurate fitment and consistent operation within the cylinder head. The valve is compatible with OEM keepers and retainers, making it suitable for use with the original valve train components when the application and service requirements are correct. Its durable steel construction is well suited to the operating demands of high-performance four-stroke motorcycle engines.
Fitment includes the 2002, 2003, 2004, 2005, and 2006 Honda CRF450R. Verify the motorcycle model year and engine configuration before ordering to ensure proper application. The Hot Cams 8400002-1 Exhaust Valve Steel is intended for professional installation and should be inspected alongside related valve train components during engine service.
Features:
- Forged steel construction for durable engine service
- Precision machined for accurate fitment and consistent operation
- Compatible with OEM keepers and retainers
- Designed and manufactured to meet or exceed OEM specifications and standards
- Fits 2002-2006 Honda CRF450R models
Fitment:
2002 Honda CRF450R
2003 Honda CRF450R
2004 Honda CRF450R
2005 Honda CRF450R
2006 Honda CRF450R