Wiseco Piston Honda CRF450R 2002-2008 4466M07350

Your CRF450R's stock piston may handle everyday riding, but if you're pushing harder—whether on the track or in aggressive trail conditions—wear and loss of compression will eventually rob you of performance. The Wiseco Piston Kit for your 2002-2008 CRF450R restores that lost power while delivering the durability needed for sustained high-RPM operation. With a 10.5:1 compression ratio and high-silicon aluminum construction, you'll gain sharper throttle response and the reliability to back it up.

This is a complete piston overhaul kit, meaning you get everything needed for a proper rebuild: the piston itself, compression rings, wrist pin, and circlips. Wiseco's precision engineering ensures a seamless fit with your stock bore, eliminating guesswork and installation headaches. The advanced aluminum alloy resists thermal stress and deformation, so your engine will maintain performance consistency even under demanding conditions.

• Fits: Honda CRF450R 2002–2008
• MPN: 4466M07350
• Compression Ratio: 10.5:1
• Material: High-silicon aluminum alloy
• Includes: Piston, rings, wrist pin, circlips
• Installation: Professional machine shop recommended
• Bore Diameter: Stock specification