Radium Engineering Oil Cap | Multiple GM LS Fitments (20-0539)

The LS oil cap is prime real estate, and Radium machined something worth putting there.

The Radium Engineering Oil Cap for GM LS Engines replaces the plastic factory cap across the LS family's twist-lock valve covers: machined billet aluminum, anodized and laser engraved, sealing on the factory interface while upgrading the touch point every oil change uses. The engine bay detail that reads intentional.

What You'll Feel

• A machined, positive-sealing cap replacing aging factory plastic
• The twist-lock interface working smoothly at every oil service
• An engine bay detail matching the rest of a built LS's hardware

Features

• Billet aluminum oil cap for GM LS twist-lock valve cover openings
• Anodized and laser engraved finish
• Seals on the factory cap interface

The Details

The LS family standardized its oil fill across an enormous span of trucks, sedans, and sports cars, which is why one cap covers so many fitments: verify your valve cover uses the standard GM twist-lock opening and the cap drops on. Radium's baffled cap variants serve catch can systems that draw crankcase flow through the fill location, while this cap handles the standard sealed duty. Hand tight is correct; the interface was never meant for tools.

Kit Includes

• 1x Billet aluminum GM LS oil cap (20-0539)

Applications

• GM LS engines with the standard twist-lock oil fill (multiple fitments; verify your cover)
• Corvette, Camaro, CTS-V, GM trucks, and LS swap applications