Oil Pump,Billet Alum Polished Big Twin 1973/1991 Complete Assembly Jims.1755 Beautiful yes, but most important feature about these JIMS low Pro 1 oil pumps is the fact that they are designed to scavenge oil quicker from the lower end than the OE oil pump. Less oil on the flywheels and rotating parts equates into limited oil drag resulting into free horsepower. This high flow oil return helps to evacuate power robbing hot oil quicker. CNC machined to exact tolerance from 6061-T651 billet aluminum and then polished to a mirror finish makes these extremely pleasing to the eye. The feed and return gears are individually matched to each body for maximum flow and the ports enter and exit from the bottom of the outer cover for the cleanest look possible. 1973/1980 models required the use of our 67059 crankcase oil passage drilling jig for proper installation.Jims Polished Oil Pump Fits Shovelhead & Big Twin Evolution 1973/1991 Replaces HD# 26190-73
Oil Pump, Billet Alum Polished Bt Evo 1992/Later, Univ Cover, Rpls Hd# 26053-92, S & S 31-6205
Machined with an oil pressure relief bleed off valve to maintain consistent oil pressure from the engine is started to the time it is shut off
Oil pressure regulation bypass route allows excess oil not used by the engine to return directly to the supply side of the pump, reducing foaming and cavitation
No thicker than a stock pump
Increased scavenging capacity results in:
Less oil in the crankscase
Less oil carryover
Equipped with a stock length oil pump drive shaft
S & S Polished Billet Aluminum Oil Pump Fits Big Twin Evolution 1992/Later Replaces HD# 26053-92
Oil Pump, Billet Alum Polished Fits Bt 1973/1991, Univ Cover, Repls Hd 26190-73, S & S 31-6203
Machined with an oil pressure relief bleed off valve to maintain consistent oil pressure from the engine is started to the time it is shut off
Oil pressure regulation bypass route allows excess oil not used by the engine to return directly to the supply side of the pump, reducing foaming and cavitation
No thicker than a stock pump
Increased scavenging capacity results in:
Less oil in the crankscase
Less oil carryover
Equipped with a stock length oil pump drive shaft
S & S Polished Billet Aluminum Oil Pump Fits Shovelhead & Evolution 1973/1991 Replaces HD# 26190-73
Oil Pump,Billet Alum Polished Bt Evo 1992/Later Complete Assembly Jims.1753 Beautiful yes, but most important feature about these JIMS low Pro 1 oil pumps is the fact that they are designed to scavenge oil quicker from the lower end than the OE oil pump. Less oil on the flywheels and rotating parts equates into limited oil drag resulting into free horsepower. This high flow oil return helps to evacuate power robbing hot oil quicker. CNC machined to exact tolerance from 6061-T651 billet aluminum and then polished to a mirror finish makes these extremely pleasing to the eye. The feed and return gears are individually matched to each body for maximum flow and the ports enter and exit from the bottom of the outer cover for the cleanest look possible. 1973/1980 models required the use of our 67059 crankcase oil passage drilling jig for proper installation.Jims Polished Oil Pump Fits Big Twin Evolution 1992/Later Replaces HD# 26053-92