10-SC446 Exhaust Valve Seat Powd Metal 44.6mm Evo Big Twin 84 99/Xl
10-SC446 Exhaust Valve Seat Powd Metal 44.6mm Evo Big Twin 84 99/Xl
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10-SC446 Exhaust Valve Seat Powd Metal 44.6mm Evo Big Twin 84-99/Xl
Elevate your engine's performance with the 10-SC446 Exhaust Valve Seat, specifically designed for the Evo Big Twin models from 1984 to 1999 and XL series. This high-quality valve seat is an essential upgrade for any serious rider or mechanic.
Key Features:
- Proprietary Seat Material: Crafted using Kibblewhite's exclusive powder metal technology, ensuring compatibility with both leaded and unleaded fuels, as well as methanol and ethanol blends.
- Exceptional Thermal Characteristics: Designed to withstand high temperatures, promoting durability and longevity in harsh operating conditions.
- Microwelding Resistance: Prevents the common issue of seat and valve face recession, maintaining optimal performance over time.
- Easy Installation: The leading edge features a generous radius, making the installation process straightforward and efficient.
Upgrade your motorcycle's exhaust system with the 10-SC446 Exhaust Valve Seat, engineered for performance and reliability. Experience improved engine efficiency and reliability, making every ride an exceptional experience.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

