Part Number: K10061. 1x Ferrea K10061 Valve Lock (per lock). The Ferrea K10061 Valve Locks are designed to secure the valve spring retainers in high-performance Subaru engines, including the 2002–2007 WRX with EJ20/EJ25 engines and the 2004–2007 WRX STI with the EJ257 engine.
