Oil Cooler Adapter -6AN ORB Oring In/Out

The Oil Cooler Adapter -6AN ORB Oring In/Out from ICT BILLET is purpose-built for enthusiasts and professionals upgrading cooling systems on GM LS-series engines. Whether you're building a street machine, race car, or high-performance daily driver, this adapter serves as the critical bridge between your engine block and aftermarket oil cooler. It eliminates the need for improvised plumbing solutions and ensures leak-free operation under sustained boost or sustained RPM.

Machined from lightweight aluminum in natural finish, the adapter features dual 6 AN female O-ring ports for both inlet and outlet connections, providing industry-standard AN thread compatibility with braided hose and fittings. The O-ring face seal design eliminates the guesswork of PTFE tape or thread sealant, creating a true metal-to-metal seal that holds up to sustained oil pressure and thermal cycling. This compact design—measuring just under 3 inches in length—fits into tight engine bay configurations without requiring custom fabrication or interference with other components.

Builders working on LS swaps, turbocharged conversions, or standalone oil cooling systems will appreciate the direct integration with GM block porting and the ability to run quality aftermarket coolers without adapting mismatched fittings. Installation pairs seamlessly with remote-mounted coolers and high-flow radiator setups, making it essential for any serious LS modification where engine oil temperatures exceed factory cooling capacity. The lightweight aluminum construction and O-ring seal technology make this adapter suitable for street, strip, or road-course applications.