High-Performance Pro-X Intake Valve Stem Seals - Honda CRF Keep your engine running clean and prevent oil blow-by with Pro-X Intake Valve Stem Seals. Engineered to exceed OEM standards, these seals are the go-to choice for professional engine builders and weekend warriors alike. Key Features & Benefits: Superior Oil Control: Prevents unwanted oil from entering the combustion chamber, reducing smoke and carbon buildup. High-Heat Resistance: Manufactured from premium fluoropolymer (Viton) to withstand the extreme temperatures of high-revving motocross engines. Precision Fit: Designed as a direct drop-in replacement for a leak-free seal every time. Durability: Highly resistant to modern fuels and additives that can degrade standard rubber seals. Precision Fitment Guide This single part number offers a precision fit for the following Honda motocross models: Model Year Range Honda CRF250R 2022, 2023, 2024, 2025, 2026 Honda CRF450R 2009 – 2026 (All Models) Note: Sold individually Why Choose Pro-X? Pro-X Racing Parts are known globally for their commitment to quality and OEM-plus performance. When you're pushing your CRF to the limit, don't settle for "close enough"—use seals that are built for the track.
