588721 KPMI, exhaust valve guide. Cast iron. +.002"

This Kibblewhite exhaust valve guide is the right choice for 2017 to 2023 Milwaukee-Eight engines undergoing a top-end refresh. Made from high-quality cast iron, it offers the superior wear resistance and durability required for the high-heat environment of the exhaust port. This is a +.002" oversize guide, providing the necessary material for a perfect fit in heads that have seen significant use. Cast iron remains the preferred material for long-distance touring bikes due to its proven track record for reliability. It provides a long-lasting solution for maintaining proper valve alignment and heat transfer in your M8 engine, ensuring your valvetrain stays quiet and efficient.