S&S CYCLE Super Stock® Alternator Style Crankcase for 1984-'91 Big Twins with Stock Bore - Natural - 31-0000
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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 | Softail Fat Boy FLSTF | - | - |
| 1990-1991 | Harley-Davidson | Low Rider Convertible FXRS-CONV | - | - |
| 1989-1991 | Harley-Davidson | Tour Glide Ultra Classic FLTCU | - | - |
| 1989-1991 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | - | - |
| 1988-1991 | Harley-Davidson | Softail Springer FXSTS | - | - |
| 1988-1991 | Harley-Davidson | Low Rider Sport FXRS-SP | - | - |
| 1987-1991 | Harley-Davidson | Softail Heritage Classic FLSTC | - | - |
| 1987-1991 | Harley-Davidson | Low Rider Custom FXLR | - | - |
| 1987-1991 | Harley-Davidson | Electra Glide Sport FLHS | - | - |
| 1987 | Harley-Davidson | Low Rider Chrome FXRC | - | - |
| 1986-1991 | Harley-Davidson | Super Glide FXR | - | - |
| 1986-1991 | Harley-Davidson | Softail Custom FXSTC | - | - |
| 1986-1991 | Harley-Davidson | Low Rider FXRS | - | - |
| 1986-1990 | Harley-Davidson | Softail Heritage FLST | - | - |
| 1986 | Harley-Davidson | Sport Glide Grand Touring FXRD | - | - |
| 1985-1987 | Harley-Davidson | Electra Glide Standard FLHT | - | - |
| 1985-1986 | Harley-Davidson | Wide Glide FXWG | - | - |
| 1985 | Harley-Davidson | Low Rider FXSB | - | - |
| 1985 | Harley-Davidson | Low Glide Custom FXRC | - | - |
| 1985 | Harley-Davidson | Fat Bob FXEF | - | - |
| 1984-1991 | Harley-Davidson | Tour Glide Classic FLTC | - | - |
| 1984-1991 | Harley-Davidson | Electra Glide Classic FLHTC | - | - |
| 1984-1991 | Harley-Davidson | Softail Standard FXST | - | - |
| 1984-1991 | Harley-Davidson | Sport Glide FXRT | - | - |
| 1984-1985 | Harley-Davidson | Low Glide FXRS | - | - |
| 1984 | Harley-Davidson | Disc Glide FXRDG | - | - |
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 1984-'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.