Big Twin Oil Pump Assembly
Replica Oil Pump
Oil Pump Assembly features improved oil pump pres‑
sure regulation that will ensure correct oiling to all areas of Big
Twin engines. This pump kit includes all necessary fittings, snap
rings, keys, gaskets and mounting bolts. Can be used on either
chain drive or belt drive models.
Note: On 1970‑80 models a
drilling operation is required, use VT No. 16‑0986 drill fixture.
Available with breather gear kit. Oil pump kits with breather
include drive gear, breather gear and washers, uses S&S style
Complete Cast Iron Oil
Pump Assembly for 1950‑64
Big Twin, replaces 26201‑
VT No. Item
S&S Complete Oil Pump Assemblies with billet bodies.
Include all internal gears and shafts for years listed. Also avail‑
able as complete kits that include drive shaft gear, pinion shaft
gear and breather gear kit.
Oil Pump Assembly
Oil Pump Kits with Breather
Note: S&S Oil Pumps are machined for two basic groups 1936‑72 and 1973‑91.
Installations on engines from 1936‑1969 and 1981‑91 are strictly bolt on and
require no modifications. Engines from 1970‑80 require a simple drilling step and
engines from 1970‑72 require a plugging step. Both steps can be performed while
the engine is still in the chassis. All 1973‑76 applications require 1977‑up diameter
pinion and cam gears.
Replica Style Big Twin Oil Pump for 1941‑49 V‑Twin includes cast
outer cover without rotator.
VT No. Item
12-9750 Cover Only
12-0109 Cover Only, Parkerized, Cast Iron
Chain Oil Adjuster Screws sold each.
1941‑53 FL‑FX Hex
1936‑48 Big Twin Slot
12-0584 63610‑53A 1954‑64 Big Twin Slot
Warranty: All Oil Pumps are covered under our “exchange only” provision. No credit will be
issued as these items are exchange only
Chrome Oil Pump Cover mounts onto the
existing bolts on 1970‑84 Big Twin models
with chain oiler fitting.
VT No. 42-0041
Oil Pump Fitting Kit fits 1968‑84 Big Twin
VT No. 40-0561
Pro Just Adjustable Pressure Relief Cap allows
the precise adjustment of oil pressure by turning the
adjusting screw clockwise to increase oil pressure
or counterclockwise to reduce oil pressure. Comes
with a “super pump” spring provided in our spring kit
13‑9222. Works in stock 1981‑99 oil pumps as well
as S&S and other aftermarket oil pumps. Fits 1981‑
99 without oil vent.
VT No. 12-9921
Oil Pump Rebuilds.
1936-40 Overhead Valve Knucklehead Oil Pump Parts. Hardware
kit includes by‑pass kit, adjusting screw kit and gaskets.
VT No. Item
12-1480 Hardware Kit
12-0477 Pump Assembly
12-1482 Oil Pump Cover, 282‑36
12-1545 Oil Pump Cover, Cad
12-0296 Rebuild Kit
Rear Chain Oiler Fitting fits 1941‑
69 FL, zinc. Fitting is positioned
between the oil pressure gauge and
oil pump fitting.
VT No. 12-1280