12an Male Valve Cover Oil Cap Aluminum Black

The 12AN Male Valve Cover Oil Cap Aluminum Black from REDHORSE PERFORMANCE is a precision-engineered replacement for engine bay fluid management on custom and modified vehicles. Built for enthusiasts who demand reliability in high-performance applications, this aluminum oil cap replaces stock plastic units that degrade under heat cycling and pressure fluctuations. Whether you're running a naturally aspirated build or a forced-induction setup, a quality valve cover cap prevents oil mist escape, protects against contamination ingress, and maintains crankcase ventilation integrity—critical factors often overlooked in engine modifications.

Constructed from lightweight aluminum and finished in sleek black, this 12AN-rated cap features a male threaded connection compatible with -12AN plumbing standards—the industry benchmark for custom oil lines, catch cans, and PCV systems. The aluminum construction resists thermal degradation that plagued older plastic caps, while the compact profile (1.5-inch diameter head) fits tight engine bays without interfering with turbochargers, intake manifolds, or custom induction systems. At just 0.19 pounds, weight penalty is negligible, but the material density ensures consistent sealing under boost pressure and sustained track temperatures where inferior caps fail.

This valve cover cap is ideal for LS swaps, rotary conversions, turbocharged street cars, and any build employing AN-specification hose routing or aftermarket PCV plumbing. Mechanics and engine builders favor REDHORSE PERFORMANCE fittings for their straightforward design and proven reliability in both street and circuit applications. Installation is straightforward—simply thread onto your existing valve cover or custom breather adapter—and compatibility with standard -12AN male fittings makes it a drop-in upgrade for any vehicle running modern catch-can setups or custom ventilation configurations.