S&S Cycle 84-91 BT w/ Stock Bore Super Stock Alternator Style Crankcase -Natural
Why this price?
$1,895.95 is MSRP, the lowest price S&S Cycle lets us list it at. Additionally, Pro members get $151.68 back on this part.
$1,895.95 − $151.68 = $1,744.27
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to S&S Cycle, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with S&S Cycle, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
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.
- 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, allowing the cases to be used in stock EFI applications and allows easy installation of S&S IST® Ignition and VFI Fuel Injection.
- 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"
- 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 1984-'91 big twins
- Clearanced for strokes as long as 5"
- 183
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1984,1987-1991 | Harley-Davidson | FLHS Electra Glide Sport | Base |
| 1986-1990 | Harley-Davidson | FLST Heritage Softail | Base |
| 1988-1991 | Harley-Davidson | FLSTC Heritage Softail Classic | Base |
| 1990-1991 | Harley-Davidson | FLSTF Fat Boy | Base |
| 1987-1991 | Harley-Davidson | FXLR Low Rider Custom | Base |
| 1984-1991 | Harley-Davidson | FXRS Low Glide | Base |
| 1984-1991 | Harley-Davidson | FXRT Sport Glide | Base |
| 1984-1991 | Harley-Davidson | FXST Softail Standard | Base |
| 1988-1991 | Harley-Davidson | FXSTS Springer Softail | Base |
| 1984-1986 | Harley-Davidson | FXWG Wide Glide | Base |
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