S&S CYCLE Super Stock® Alternator Style Crankcase for '92-'99 Big Twins with Stock Bore - Wrinkle Black - 31-0055
Perfect for stock replacement and high performance applications, these crankcases offer 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.
Features and Benefits:
- Relocated cam chest oil pick-up increases gear case scavenging and virtually eliminates oil carry-over at sustained high speeds
- Machined to accept the stock oil filter assembly used on 1992–'99 big twins
- A ported breather passageway and a machined breather window allows the air/oil mist to flow from the flywheel cavity to the cam chest of the engine with the least possible restriction
- Crankcase venting can be achieved via two crankcase breathers, the cylinder heads, or both. We recommend using both crankcase breathers in engines larger than 95"
- Clearanced for strokes as long as 5"
- Compatible with stock 1984–'99 flywheel assemblies, primary covers, gearcovers, and clearanced for 38 amp alternator stators, making them perfect for stock replacement or high performance applications
- Machined for installation of a crank position sensor. This allows the cases to be used in stock EFI applications and also allows easy installation of S&S IST® Ignition and VFI Fuel Injection. A plug kit is included for applications that do not use a crank position sensor
Options
- Available for stock, 3 5/8", and 3 13/16" bore applications with deck heights as much as 3/16" taller than stock
- Natural aluminum, black wrinkle powdercoat, and polished finish available
| Crankcase Style | Finish |
Part Number | Notes | |||
| 3 1/2" Bore (Stock) |
3 5/8" Bore |
3 5/8" Bore (Small Diameter) |
3 13/16" Bore |
|||
| 1992–'99 | Natural | 31-0005 | 31-0077 | 31-0073 | 31-0032 | 1, 3, 4 |
| Black | 31-0055 | 31-0078 | 31-0075 | – | ||
| Polished | 31-0079 | – | – | |||
| NOTES: 1. 1992-'99 style oil pump. 2. 1984-'91 style oil pump. 3. Machined for 1984-'99 alloy primary. 4. Machined for stock or S&S EFI crank position sensor. Stock diameter only. | ||||||
Note: All S&S crankcases manufactured after June 1, 2008 do not have case interlock groove and ring and do not use case alignment studs. Case mating surface is flat, and cases are aligned with alignment dowels.
NOTE: 1992-'99 style oil pump. Machined for 1984-'99 alloy primary. Machined for stock or S&S EFI crank position sensor. Stock diameter only.
Fitment Guide
| 2000 | Harley-Davidson | FXR4 | - | - |
| 1999 | Harley-Davidson | FXR3 | - | - |
| 1999 | Harley-Davidson | FXSTB Night Train | - | - |
| 1999 | Harley-Davidson | FXR2 | - | - |
| 1998 | Harley-Davidson | FLTRI Road Glide | - | - |
| 1998 | Harley-Davidson | FLTR Road Glide | - | - |
| 1998 | Harley-Davidson | Road King EFI FLHR | - | - |
| 1998 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | - | - |
| 1997-1999 | Harley-Davidson | FLSTS Heritage Springer | - | - |
| 1996-1998 | Harley-Davidson | FLHTCI Electra Glide Classic | - | - |
| 1996-1997 | Harley-Davidson | FLHRI Road King | - | - |
| 1996 | Harley-Davidson | Tour Glide Ultra Classic FLTCU | - | - |
| 1995-1998 | Harley-Davidson | FLHT Electra Glide Standard | - | - |
| 1995-1998 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic | - | - |
| 1995-1998 | Harley-Davidson | FXDS-Conv Dyna Convertible | - | - |
| 1995-1998 | Harley-Davidson | FXD Dyna Super Glide | - | - |
| 1995-1997 | Harley-Davidson | FXSTSB Bad Boy | - | - |
| 1995 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | - | - |
| 1994-1998 | Harley-Davidson | FLHR Road King | - | - |
| 1994-1996 | Harley-Davidson | FLSTN Heritage Softail Special | - | - |
| 1994 | Harley-Davidson | Tour Glide Classic FLTC | - | - |
| 1993-1998 | Harley-Davidson | FXDWG Dyna Wide Glide | - | - |
| 1993-1998 | Harley-Davidson | FXDL Dyna Low Rider | - | - |
| 1993 | Harley-Davidson | FLSTN Heritage Softail Nostalgia | - | - |
| 1993 | Harley-Davidson | Low Rider FXRS | - | - |
| 1993 | Harley-Davidson | Sport Glide FXRT | - | - |
| 1992-1999 | Harley-Davidson | FLSTC Heritage Softail Classic | - | - |
| 1992-1999 | Harley-Davidson | FLSTF Fat Boy | - | - |
| 1992-1999 | Harley-Davidson | FXSTC Softail Custom | - | - |
| 1992-1999 | Harley-Davidson | FXSTS Springer Softail | - | - |
| 1992-1998 | Harley-Davidson | FLHTC Electra Glide Classic | - | - |
| 1992-1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | - | - |
| 1992-1995 | Harley-Davidson | FLTCU Tour Glide Ultra Classic | - | - |
| 1992-1994 | Harley-Davidson | FXR Super Glide II | - | - |
| 1992-1994 | Harley-Davidson | FXLR Low Rider Custom | - | - |
| 1992-1993, 1999 | Harley-Davidson | FXST Softail Standard | - | - |
| 1992-1993 | Harley-Davidson | FXRS-Conv Low Rider Sport Convertible | - | - |
| 1992-1993 | Harley-Davidson | FXRS-SP Low Rider Sport | - | - |
| 1992-1993 | Harley-Davidson | FLHS Electra Glide Sport | - | - |
| 1992-1993 | Harley-Davidson | FLTC Tour Glide Classic | - | - |
| 1992 | Harley-Davidson | FXDB-D Dyna Glide Daytona | - | - |
| 1992 | Harley-Davidson | FXDC Super Glide Custom | - | - |
| 1992 | Harley-Davidson | FXRS Low Glide | - | - |
| 1992 | Harley-Davidson | FXRT Sport Glide | - | - |
Specs
| PRODUCT NAME | ENGINE CASE |
| MODEL | SUPER STOCK |
| BASE COLOR | BLACK |
| COLOR/FINISH | BLACK / POWDER-COATED |
| MATERIAL | ALUMINUM |
| BORE SIZE | 3.500" |
| UNITS | KIT |
| FINISH | POWDER-COATED |
| RIDING STYLE | STREET |
Delivery Info
Please Note - Warehouse Locations For This Part -
S&S CYCLE Super Stock® Alternator Style Crankcase for '92-'99 Big Twins with Stock Bore - Wrinkle Black - 31-0055
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.