#12 Stl Long Oil Inlet Male Flare to 1/2 NPT

The XRP #12 Steel Long Oil Inlet Male Flare to 1/2 NPT is a precision-engineered adapter designed for marine and automotive cooling systems where extended inlet reach and reliable threading are critical. This 4.5-inch extended oil inlet adapter connects a 12 AN male flare fitting to a 1/2-inch NPT male port, providing the length and thread compatibility needed for complex engine bay layouts common in performance boating and racing applications.

Manufactured from steel by XRP-XTREME RACING PRODUCTS, this adapter is built to withstand the pressure and temperature cycling inherent in high-performance marine environments. The 12 AN flare connection provides a robust seal when paired with compatible hard-line and braided hose fittings, while the 1/2 NPT male thread ensures secure fastening to standard oil cooler ports, thermostatic bypass fittings, and block-mounted ports. The extended 4.5-inch length accommodates tight engine compartments where direct, shorter adapters cannot reach, eliminating the need for multiple adapter cascades that introduce weakness and potential leak points.

This adapter is essential for offshore fishing boat builders, performance marine mechanics, and automotive enthusiasts running aftermarket oil cooling systems. Whether you're integrating an external oil cooler on a high-horsepower engine or replacing a damaged inlet fitting, the straight design and verified thread standards eliminate guesswork and reduce assembly time. The steel construction resists corrosion better than aluminum when proper maintenance protocols are followed, making it a lasting choice for systems exposed to salt spray and thermal stress.

XRP adapters are known in the racing and marine performance community for dimensional accuracy and repeatable quality control. This straight male-to-male configuration is a foundational component in modular cooling system builds, where precision thread engagement and leak-free flare connections are non-negotiable. If your cooling system calls for extended reach without compromise, this adapter delivers the OEM compatibility and mechanical reliability required for dependable performance.