Oil Inlet Fitting -10 x 3/8in

The Oil Inlet Fitting -10 x 3/8in from Peterson Fluid is a precision engine oil line component designed for high-performance and racing applications where reliable oil supply to critical engine components is non-negotiable. This straight inlet fitting bridges aftermarket oil systems to standard NPT ports, serving builders, engine shops, and motorsports enthusiasts who demand clean, pressurized oil delivery without leaks. Whether upgrading a dry-sump system, installing a remote oil cooler, or routing oil to a turbocharger, this fitting provides the connection point that modern performance engines require.

Constructed from hardened steel with black oxide finish, the Oil Inlet Fitting resists corrosion and maintains structural integrity under sustained pressure and temperature cycling. The 10 AN male connection accommodates industry-standard braided hose and quick-disconnects, while the 3/8-inch NPT female port threads directly into engine blocks, manifolds, or sandwich adapters without adapter stacks. The straight design—3 inches in length—eliminates unnecessary bends that could restrict flow or create turbulence, ensuring consistent oil pressure delivery across a wide RPM range. Black oxide plating provides durability in under-hood environments where moisture and heat are constant.

This fitting is ideal for builders working with LS engines, small-block Chevys, Fords, and other platforms requiring remote oil system modifications. Racers, drag racing teams, and street performance shops rely on Peterson Fluid fittings for their reputation in preventing mid-race pressure loss and catastrophic oil starvation. Installation requires basic thread-sealant prep and standard AN wrench sizing; confirm NPT port availability on your block or manifold before ordering. Lightweight at 0.18 lbs, it contributes minimally to overall system weight while delivering maximum reliability.