Originally designed for S&S 4 1/8" bore V-Series engines with piston oiler jets, these high volume high pressure oil pumps also work well in stock Harley- Davidson® Evolution® engines and S&S V-Series engines. Fits 1984–'99 Big Twins
- No thicker than a stock pump
- Gears with fewer, but larger teeth provide increased oil volume for both supply and return sides of the pump
- Supply gears are 9% wider than stock and standard S&S oil pumps
- 28% wider than stock return gears ensure proper crankcase scavenging, reduce drag on the flywheels, and eliminate oil carryover
- Polished Billet Finish
- Increased scavenging capacity results in: Less oil in the crankcase, Less oil carryover, Excess oil from pressure control valve is filtered—longer pump life
- Equipped with a stock length oil pump drive shaft
Pump Only Kit . . . . . . . . . 31-6214
Pump with Gears Kit. . . .31-6307
Notes: We do not recommend the HVHP for shovel engines, as it may over oil the top end unless the oiling system is modified with the S&S valve train update kit.
