The Fram HP6A is a racing oil filter designed for NASCAR engines. It differs from the NHRA-spec HP6 by the addition of a screen on the safety valve.
This 6 1/8" long x 4 1/2" OD filter is much larger than those found on passenger cars and trucks. The extremely large 1 1/2 x 12 threads fit Fram remote filter heads HPK6, HPK600, and HPK6000 only. It does not fit any of the filter heads we carry.