VT#: 12-1505
Sifton high flow pinion shaft oil pump drive gear for 1939- 1953 OHV Big Twins. 6 tooth gear increases oil flow rate by approximately 25%.
EL 1939-1940
FL Electra Glide® 1941-1953
Requires use of late style oil pump VT #12-1407 OEM # 26345-73.