SIFTON HIGH FLOW PINION SHAFT OIL PUMP DRIVE GEAR FOR 1939- 1953 OVERHEAD VALVE BIG TWINS. 6 TOOTH GEAR INCREASES OIL FLOW RATE BY APPROXIMATELY 25%.
FIT
1939-1940 EL 1941-1953 FL
12-1496 - OIL PUMP DRIVE GEAR, 6 TOOTH, 1.8" O.D
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