Accumulator Adapter, 3/4-16 Thread 2-5/8 In O-Ring• 3/4"-16 thread and 2-5/8" O-ring-fits Ford, Chrysler and 4 and 6 cylinder applications • Provides a convenient way to plumb and accumulator into the oiling system • The adapter has one -10AN oil input port that provides filtered oil to the accumulator • Mounts on the spin-on filter pad between the oil filter and the engine block, lowering the spin-onfilter by 1-1/4"