S&S Cycle - S&S Performance Parts 2025 L - Volume 67

1984-'-99

www.sscycle.com

1 -2017-UP 2- 2007-'17 3 -1999-'06 4 -1984-'99 5 -1936-'84 6 -XL-RA1250 7 -BELTS & GASKETS 8 -TOOLS 9 -WARRANTY 10 -APPENDIX

31-6203

Fitment • 1984–’99 big twins Features And Benefits • Machined with an oil pressure relief bleed off valve to maintain consistent oil pressure from the time the engine is started to the time it’s 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 crankcase - Less oil carryover • Equipped with a stock length oil pump drive shaft

Options Pump Only Kits • Complete oil pump assembly • Oil pump driveshaft • Miscellaneous hose fittings and plugs • Paper gaskets

• Mounting hardware Pump And Gear Kits • For stock 1984–'89 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

Chrome Plating the Pump — It is extremely difficult to chrome plate an oil pump without getting chrome in the passageways, cavities or on the machined sur faces where the gears, check ball, and pressure valve operates Chrome in these areas as well as on the gasket surfaces impairs the pumps performance by altering the operating tolerances machined into the parts In addition, abrasive particles of chrome may break loose causing damage to the pump and the engine Because of this, S&S does not recommend chrome plating the pump body or cover S&S voids its warranty if these parts are chrome plated

Oil Pump Kits For 1984–'99 Big Twins Year Cover Type

Pump Only Kit

Pump & Gear Kits

1984–'91

Universal

*31-6295 USA

31-6203 USA

–

310-0899

Gloss Black Universal

1992–'99

Standard

*31-6296 USA

31-6206 USA

Universawl – *Pinion shaft gears included in these kits fit stock 1984–’89 pinion shafts and S&S pinion shafts for 1984-’99. Will not fit stock 1990–’99 straight pinion shafts. Standard style covers have feed and return holes in the stock locations. The universal cover has a number of oil feed and return options, allowing maximum flexibility for customized applications. 31-6205 USA 1

Replacement Parts - page 4-77

4-46