The Supertech spring seat locator for Mitsubishi dual-spring applications (M1007D) is a locator designed for dual valve spring setups. Intended for Mitsubishi heads that use the M1007D dual-spring configuration, it provides correct seating for inner and outer springs and is offered as a replacement component for valve train maintenance or rebuilds.
Supertech Spring Seat Locator for Mitsubishi Dual Spring M1007D