S&S Cycle 31-0003

The S&S Super Stock alternator style crankcases are perfect for stock replacement and for high performance applications. Pre-clearanced for strokes up to and including 5 inch. S&S Super Stock crankcases are compatible with stock 1970-1999 flywheel assemblies, primary covers, gearcovers, and clearanced for 38 amp alternator stators. 1970–1984 big twins. Natural finish. Available for stock, 3 5/8", and 3 13/16" bore applications.

Stock. . . .31-0003
3 5/8". . . . 31-0004
3 5/8"Bore (small diameter). . . .31-0071
3 13/16". . . .31-0030

NOTES:1981–'84 style oil pump. Includes primary scavenge port machining. Machined for 1970 & later alloy primary.

FITMENT DISCLAIMER

Fitment information is provided as a general reference only and is not guaranteed for any motorcycle, whether stock or modified. Compatibility may vary by year, model, and individual configuration.

Customers are responsible for verifying fitment prior to purchase. House of Harley-Davidson assumes no liability for purchases made based on incorrect or unverified fitment information.

Please contact our Parts Department with any questions before ordering at 414-282-2211