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PERFORMANCE MOTORCYCLE PARTS AND KITS FOR AMERICAN V-TWINS

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HVHP Billet Oil Pump Kit for 1984–'91 Big Twins

 
 
 
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$399.95
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Dealer Only Item

 
 
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Description
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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–'91 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):

  • Complete oil pump assembly
  • Oil pump driveshaft
  • Miscellaneous hose fittings and plugs
  • Paper gaskets
  • Mounting hardware

 

Pump And Gear Kit (31-6307):

  • For stock 1984-'86 engines or engines with S&S flywheel assemblies
  • Everything in the "pump only" kits
  • Oil pump drive shaft gear
  • Oil pump pinion shaft gear
  • Steel breather gear and shim kit



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.

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