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COMP Cams ID spring locator is a hardened steel seat with an inboard locating shoulder that centers and retains high-pressure valve springs while protecting the head and shim at high RPM. The 4786 measures 1.635" OD and .570" ID and fits dual spring 959 and triple springs including 947, 948, 26082 and 26028, offering compact seating that avoids extensive head machining.
COMP Cams ID Spring Seat 1.635 X 570 X
