The GSC P-D single CroMo spring seat is made for Subaru EJ-series applications and pairs with spring kit part number 5074. Supplied as an individual seat, it provides a durable contact surface between valve springs and retainers when rebuilding or upgrading cylinder-head valve springs on EJ-series engines, matching the intended spring kit configuration for reliable assembly.
GSC P-D Subaru EJ Series CroMo Spring Seat (For 5074 Spring Kit) - Single