
Kibblewhite Valve Guide - Ref. 40-40520
Bronze C674 intake valve guide designed for cross heads. This manganese guide is softer than premium references, making boring and finishing easier: it wears easily with Kibblewhite ball hones and can be quickly re-bored with a drill (corded or battery-operated). Built to standard KPMI® tolerances, it offers a reliable replacement solution while exhibiting lower strength and durability than C630 nickel-aluminium bronze guides.
Ideal for engine preparations and maintenance operations in cross, this guide is particularly suitable for Kawasaki KX 250 F (2010, 2012, 2016 models listed among its frequent applications). For clean machining, prefer suitable hones and regular checks of valve/guide clearance. Simple replacement for those skilled in boring and honing: a part designed to be worked on and adjusted as needed.