Part Description
Fits 1957-1983 Sportster, Valve seat, exhaust, 1.757" x 1.375" x 0.450" (44.62mm x 35.00mm x 11.43mm)
Text excerpt from the catalog:
KPMI's proprietary valve seat material is compatible with leaded and unleaded fuels including methanol and ethanol fuel blends. This material offers excellent thermal characteristics and resists micro-welding that leads to seat and valve face recession. Machinable with standard tooling. Leading edge has generous radius to ease installation. Dimensions are listed as outer diameter x inner diameter x height
