* Natural Aluminium Finish.

* Perfect for stock replacement & 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.

* Relocated cam chest oil pick-up increases gear case scavenging & virtually eliminates oil carry-over at sustained highspeeds.

* Machined to accept the stock oil filter assembly used on Big Twins 1984–1991.

* A ported breather passage way & 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 95ci.

* Clearanced for strokesas long as 5in.

* Compatible with stock 1984-1999 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 & also allows easy installation of S&S IST Ignition & VFI Fuel Injection.

* A plug kit is included for applications that do not use a crank position sensor

* Upgrade on OEM # 24469-83 / 24473-83 / 24473-85

Tech Tips:-

* S&S Crankcase # SS31-0052 directly replaces H-D # 34473-85A.

* Use 1984-1991 style oil pump.

* Machined for 1984-1999 alloy primary.

* Machined for stock or S&S EFI crank position sensor. Stock diameter only.

Proudly Made in the USA by S&S Cycle !

*“On Line Shopping Only

The post S&S Crankcase Assembly with 3-1/2in. Bore – Natural. Fits Big Twin 1984-1991 appeared first on Birds Bitz Motorcycle Parts & Accessories.

The post Crank Pin Woodruff Key Big Twin 1930/Early 1981, 3 Hole or 1 hole. K, Sportster 1954/Early 1981, 3 hole Replaces 23985-18 Sold Each appeared first on Birds Bitz Motorcycle Parts & Accessories.

* Sold as a Pair.

* Replaces OEM # 6506

Proudly Made in the USA by Bender Cycle !

*“On Line Shopping Only

The post Bender Cycle Crank Pin Boss Thrust Washer. Fits Big Twin Late 1970-1999 & Sportster Early 1979-1986 appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 11/8in.-16 threads

* Made in the U.S.A.

* Replaces OEM # 24017-80

*“On Line Shopping Only

The post Jims Sprocket Shaft Nut. Fits Big Twin 1981up. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* Machined from solid bronze bar stock.

* Hold concentricity to less than .0002in..

* Includes Sprocket Shaft # JM-23909-80.

* Includes Sprocket Side Nut # JM-24003-55.

* Flywheel Side Nut # JM-24017-80.

* Key # JM-2489.

Proudly Made in the USA by JIMS !

*“On Line Shopping Only

The post Jims Sprocket Shaft Kit. Fits Big Twin 1981-Early 1985. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* Spacers are machined to a 32 micron finish.

* Burr free for extended seal life.

* Replaces OEM # 24002-70

Tech Tips:-

* Use JIMS tool # JM-39361-69 to install seal.

Proudly Made in the USA by S&S Cycle !

*“On Line Shopping Only

The post S&S Sprocket Shaft Seal Spacer. Fits Big Twin 1970-1999. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* Sold Each.

* Replaces OEM # 24002-70B

Proudly Made in the USA by Bender Cycle !

*“On Line Shopping Only

The post Bender Cycle Left Engine Case Sprocket Shaft Spacer. Fits Big Twin 1970-1999. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* Sold as a Pack (5).

* Replaces OEM # 24037-70

* Does Not Fit 2006 Dyna

Proudly Made in the USA by Bender Cycle !

*“On Line Shopping Only

The post Bender Cycle 0.210in. Sprocket Shaft Spacer – Pack of 5. Fits Big Twin 1970-2006 appeared first on Birds Bitz Motorcycle Parts & Accessories.

* Sold as a Pack (5).

* Replaces OEM # 24032-70

* Does Not Fit 2006 Dyna

Proudly Made in the USA by Bender Cycle !

*“On Line Shopping Only

The post Bender Cycle 0.060in. Sprocket Shaft Spacer – Pack of 5. Fits Big Twin 1970-2006 appeared first on Birds Bitz Motorcycle Parts & Accessories.

* Sold Each.

* Replaces OEM # 29960-91

Proudly Made in the USA by Bender Cycle !

*“On Line Shopping Only

The post Bender Cycle Sprocket Nut Alternator Rotor Spacer. Big Twin 1991up. appeared first on Birds Bitz Motorcycle Parts & Accessories.