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159
BIG TWIN
S&S Complete Oil Pump Assemblies with billet style 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.
Billet Oil Pumps Assemblies
VT No. 
Years
12-8002 
1973-1991 Big Twin
12-8003 
1992-1999 Big Twin
Oil Pump Kits with Breather Assembly
12-8008 
1973-1991 Big Twin
12-8009 
1992-1999 Big Twin
S&S Oil Pump Gasket and Master Rebuild Kits are avail-
able with paper or mylar gaskets. Gasket kits include inner and 
outer gaskets, drive shaft key and snap ring. Master rebuild kits 
include seal, snap rings, springs, ball, inner and outer gasket, 
O-rings, and keys.
Gasket Kit 
Master   
Type 
Year
Only 
Rebuild Kit
15-0657 
15-0361 
Paper 
1936-91 Big Twin
15-0658 
   — 
 
Paper 
1936-91 Big Twin
15-0362 
15-0364 
Mylar 
1992-99 Big Twin
15-0363 
   — 
 
Paper 
1992-99 Big Twin
15-1269 
   — 
 
Metal All HVHP Pumps
12-8008
12-8002
Oil Pump
Sifton Oil Pump features geo-rotor compact cad/cam design, 
modular billet aluminum construction, superior scavenging, 
increased feed flow rate which eliminates wet-sumping in 
crankcase. Fits 1992-99 Evolution.
VT No.   Item
12-0859 
Pump
15-0549 Gasket Kit
12-0859
15-0549
Chrome Oil Line Fitting Set will allow 
use of ³⁄₈” braided steel lines. Built in 
compression fitting so no need for 
clamps. Reusable three piece set.
VT No.   Thread   
Fits
40-0575  ¹⁄₂” NPT  
Twin Cam
40-0583  ¹⁄₈” NPT   
Early
40-0584  ¹⁄₄” NPT   
Twin Cam
40-0583
40-0584
40-0575
Oil Pump Fitting
Oil Fittings for Big Twin models. 
VT No.   OEM  
  Type
12-1412  63533-65  Oiler Return
40-9982  63541-70  Oiler Tee, Rear Chain
Chrome Tight Spot Oil Pump Fitting 
Set
 features a 
5
/
16
” allen socket for easy 
installation or removal. Includes 
1
/
8
” NPT 
nipples.
VT No. 40-0577
40-0577 Installed
12-1412
40-9982
Chrome Oil Pump Fittings for 1968-99 
Big Twin, 5 pack or four piece kit.
VT No.  OEM 
Type
12-1416 26338-68  90° Elbow
40-0566 63533-41  Nipple for ³⁄₈” hose
40-0574 Kit 
90° And Nipple
40-0574
40-0562
12-1416
40-0563
Oil Pump Fitting Kit for Big Twin models.
VT No.  Year 
Type
40-0562 1984-91 
Stock
40-0563 1970-91 
Custom
Gasket and Master 
Rebuild Kit
15-0361
15-1269
15-0362
15-0363