S&S CYCLE Super Stock® Alternator Style Crankcase for '84-'91 Big Twins with Stock Bore - Natural - 31-0000
🚚 Estimated Delivery: 14 Jul - 21 Jul
Perfect for stock replacement and high performance applications in 1984-' 91 Harley-Davidson® big twin models. This 3-1/2" (stock) bore crankcase offers some unique features. Besides being machined for a crank position sensor, they are also compatible with stock flywheel assemblies, primary covers, gearcovers, and are clearanced for 38 amp alternator stators. Includes all required hardware, fittings, and bearings, natural aluminum finish.
- Cast from A356 T-6 heat-treated aluminum alloy
- Machined to accept an oil filter assembly that mounts on the front of stock motor cases
- All races are line-honed and breather cavity is precision-machined to optimize breather timing for maximum oil scavenging
- Additional parts include; crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, oil pressure switch, oil screen, spring and plug, sprocket shaft Timken bearing assembly and oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump drive shaft bushing and installation instructions
- Machined for EFI fitment
- Made in the U.S.A.
NOTES: 1984-'91 style oil pump. Machined for 1984-'99 alloy primary. Machined for stock or S&S EFI crank position sensor. Stock diameter only.
Fitment Guide
| 1990-1991 | Harley-Davidson | FXRS-Conv Low Rider Sport Convertible | - | - |
| 1990-1991 | Harley-Davidson | FLSTF Fat Boy | - | - |
| 1989-1991 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | - | - |
| 1989-1991 | Harley-Davidson | FLTCU Tour Glide Ultra Classic | - | - |
| 1989-1990 | Harley-Davidson | Low Rider FXRS | - | - |
| 1988-1991 | Harley-Davidson | FXRS-SP Low Rider Sport | - | - |
| 1988-1991 | Harley-Davidson | FLSTC Heritage Softail Classic | - | - |
| 1988-1991 | Harley-Davidson | FXSTS Springer Softail | - | - |
| 1987-1991 | Harley-Davidson | FXLR Low Rider Custom | - | - |
| 1987-1991 | Harley-Davidson | FLHS Electra Glide Sport | - | - |
| 1987 | Harley-Davidson | Softail Heritage Classic FLSTC | - | - |
| 1986-1991 | Harley-Davidson | FXR Super Glide II | - | - |
| 1986-1991 | Harley-Davidson | FXSTC Softail Custom | - | - |
| 1986-1990 | Harley-Davidson | FLST Heritage Softail | - | - |
| 1986-1987 | Harley-Davidson | FLHT Electra Glide Standard | - | - |
| 1986 | Harley-Davidson | FXRD Sport Glide Grand Touring | - | - |
| 1985-1986 | Harley-Davidson | FXWG Wide Glide | - | - |
| 1985, 1987 | Harley-Davidson | FXRC Low Rider Chrome | - | - |
| 1985 | Harley-Davidson | FXEF Fat Bob | - | - |
| 1985 | Harley-Davidson | FXSB Low Rider - Belt | - | - |
| 1985 | Harley-Davidson | Electra Glide Standard FLHT | - | - |
| 1984-1991 | Harley-Davidson | FLHTC Electra Glide Classic | - | - |
| 1984-1991 | Harley-Davidson | FXST Softail Standard | - | - |
| 1984-1991 | Harley-Davidson | FLTC Tour Glide Classic | - | - |
| 1984-1991 | Harley-Davidson | FXRT Sport Glide | - | - |
| 1984-1988, 1991 | Harley-Davidson | FXRS Low Glide | - | - |
| 1984 | Harley-Davidson | FXRDG Disc Glide | - | - |
Specs
| PRODUCT NAME | ENGINE CASE |
| MODEL | SUPER STOCK |
| BASE COLOR | SILVER |
| COLOR/FINISH | RAW |
| MATERIAL | ALUMINUM |
| BORE SIZE | 3.500" |
| UNITS | KIT |
| FINISH | RAW |
| RIDING STYLE | STREET |
Delivery Info
Please Note - Warehouse Locations For This Part -
S&S CYCLE Super Stock® Alternator Style Crankcase for '84-'91 Big Twins with Stock Bore - Natural - 31-0000
Gold Coast Warehouse- If your parts are in stock at our Gold Coast warehouse at the time of order, they will be shipped within 24hrs.
Supplier Warehouse - 2-3 Week Delivery- If your parts are located at our Supplier Warehouse, Delivery ETA is approx 2-3 weeks, as the parts are likely coming from our USA supplier warehouse. We will notify you once we receive it in Gold Coast warehouse and its on its way to you.