This COMP Cams lower seat is specified as the replacement lower seat for part 26120 with a .570" guide and is supplied as a hardened steel ID locator. The 4696-style seat uses an inboard locating shoulder and a 1.510" outside diameter to center and secure valve springs while protecting the head and shim, giving consistent seating and easing assembly in compatible guide applications.
COMP Cams ID Spring Locators 26120 W/.5