KPMI Valve Seat - Exhaust 1.417" X 1.023"x 0.354" — Harley-Davidson (2017-2024)

KPMI exhaust valve seat (1.417" x 1.023" x 0.354") made from Kibblewhite's proprietary material that resists microwelding and seat recession. Compatible with leaded, unleaded, methanol, and ethanol fuel blends for reliable sealing across multiple fuel types.

Features

• Kibblewhite proprietary seat material
• Resists microwelding and valve face recession
• Compatible with leaded and unleaded fuels
• Works with methanol and ethanol fuel blends
• Generous radius leading edge for easier installation
• Excellent thermal characteristics

Specifications

• Brand: KPMI
• Manufacturer Part #: 10-HC360S
• Seat OD: 1.417 in
• Seat ID: 1.023 in
• Height: 0.354 in
• Weight: 0.25 lbs

Frequently Asked Questions

What fuels is this seat compatible with?

This valve seat works with leaded, unleaded, methanol, and ethanol fuel blends without degradation.

Will this seat resist recession over time?

Yes. Kibblewhite's material is engineered to resist microwelding, which is a primary cause of seat and valve face recession.

Does the leading edge design help during installation?

Yes. The generous radius on the leading edge eases insertion and reduces the risk of damage during press-fitting.

What makes Kibblewhite's material different?

Their proprietary compound offers excellent thermal stability and resists the microwelding that causes premature seat wear in stock materials.