Precision Works Oil Bypass Check Valve Plug Fits LS1 LS2 LS3

Eliminate unfiltered oil from bypassing into your LS engine's bearings with this premium billet aluminum bypass delete plug.

• •CNC-machined billet aluminum construction for durability and reliability
• •Replaces factory check valve that can open under oil pressure surges, allowing particle-laden oil to contaminate engine bearings
• •High-temperature Viton O-ring for lasting performance
• •1/4-20 threaded hole for tool-free removal and reinstallation
• •Reusable design for long-term value

Direct fit for LS1, LS2, LS3, LS4, LS6, LS7, LS9, LQ4, LQ9 engines and 4.8L, 5.3L, 6.0L, 6.2L, L92, L99 variants. **Does not work with LSA engines.**