GM 3400/3100 oil cooler adapter

The 3400 3100 oil cooler adapter is engineered specifically for GM 3100 and 3400 series engines and provides a clean and reliable way to route engine oil to any external cooler. The adapter threads on at the factory oil filter location and features #6 fittings for secure line connections. It is fully compatible with our transmission lines, making it easy to integrate into new or existing plumbing.
An external oil cooler offers several advantages including improved oil temperature control, reduced thermal breakdown, extended oil life, and greater overall engine protection under heavy load or high heat conditions. Lower oil temperatures help stabilize oil pressure and reduce wear on bearings, pistons, and valvetrain components, which is especially important in high stress environments like demolition derby, towing, and performance driving.
All of our Trans Coolers can be used for either engine oil or transmission fluid. They are built to handle sustained heat and flow demands, providing flexible options for cooling systems on custom builds and motorsports applications. When paired with this adapter, you get a dependable and serviceable setup that increases engine durability and performance with straightforward installation.