RADIUM Engineering 20-0539 Baffled GM LS/LT Oil Cap

The RADIUM Engineering 20-0539 is a precision-machined anodized billet aluminum oil cap designed as a direct replacement for factory oil caps on GM LS and LT engines. This performance oil cap features a 7/8"-14 threaded top port that accepts 10AN ORB adapter fittings and includes an integrated stainless steel baffle for air/oil separation during crankcase venting applications.

Key Features:

• CNC-machined billet aluminum construction with durable anodized finish
• Includes 10AN ORB plug to block off internal baffle for standard oil cap function
• Internal cleanable and reusable stainless steel baffle media
• 7/8"-14 threaded port for custom crankcase venting setups
• Compatible with both LS-based engine oil cap styles
• Direct fit for LS1, LS2, LS3, LS4, LS6, LS7, LS9, LSA, L76, L99, L9H, LT1, LT2, and LT4 engines

This oil cap can be used as a simple factory replacement with the included 10AN ORB plug installed, or the plug can be removed to access the internal baffle for custom crankcase breather applications. When configured with compatible 10AN ORB fittings, the internal stainless steel baffle provides effective air/oil separation to help maintain crankcase pressure control and reduce oil vapors in performance applications.