High Quality Parts
From the best brands
- Home
- 31-0003 SUPER STOCK® ALTERNATOR STYLE CRANKCASE FOR 1970-'84 BIG TWINS WITH STOCK BORE - NATURAL

31-0003 SUPER STOCK® ALTERNATOR STYLE CRANKCASE FOR 1970-'84 BIG TWINS WITH STOCK BORE - NATURAL
Rating :
Regular price
$3,126.41
Sale
Available:
Contact us to place an order
S&S CYCLE31-0003
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.
Part Number : 31-0003
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.
**** PLEASE NOTE ***** : 31-0003 IS A QUALITY AFTERMARKET PRODUCT. ANY OEM HARLEY PART NUMBERS IN THE TITLE OR DESCRIPTION OF THIS ITEM ARE FOR REFERENCE ONLY , THIS IS A QUALITY AFTERMARKET PRODUCT THAT WE HAVE SOURCED AS AN ALTERNATIVE TO THE OEM VERSION OR FOR WHEN HARLEY-DAVIDSON HAVE CEASED TO MANUFACTURE THE OEM PART.
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.
Part Number : 31-0003
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.
**** PLEASE NOTE ***** : 31-0003 IS A QUALITY AFTERMARKET PRODUCT. ANY OEM HARLEY PART NUMBERS IN THE TITLE OR DESCRIPTION OF THIS ITEM ARE FOR REFERENCE ONLY , THIS IS A QUALITY AFTERMARKET PRODUCT THAT WE HAVE SOURCED AS AN ALTERNATIVE TO THE OEM VERSION OR FOR WHEN HARLEY-DAVIDSON HAVE CEASED TO MANUFACTURE THE OEM PART.