Pf46 Pf46e Gen3 Iii Ls Fbody Imperial Thread Oil Filter 19210283
ACDELCO PF46E Specifications. BUICK REGAL 1975-1976. Anti-Drain Back Valve Yes. Bypass Relief Valve No. Filter Type Spin On. TR21–25 – Isles of Scilly. IM – Isle of Man. HS, ZE – Western Isles, Shetland & Orkney.