Cannonball Inner Primary Housings for Big Twin 1965-1969

Prayers answered: New Inner Primary for ’65 thru ’69 Big Twins

So you finished rebuilding that vintage Panhead engine and made it shine again, or finally found the perfect frame for your Early Shovel chopper project? And the last piece to go into your Harley puzzle is that beat up, worn out inner primary, used and abused right up to the point of retirement? With its visible repair welds, the chain marks, the shaky main shaft bearing seat? Wouldn’t a brand new, sound inner primary be so much better? Long after Milwaukee stopped making them for ever, here’s a faithfully reproduced state of the art new casting of the OEM inner primary.

Cannonball has produced a limited run of Harley inner primaries (OEM 60615-65A) 1965 thru 1969. Sand cast from aluminium alloy and precision machined in Germany, with all the details for an easy and long lived installation included.

All your existing fittings, bolts and anything else can be reused. Should you prefer to have everything in an "as new" condition, check out our large selection of all parts necessary for installation. To help with the decision making, consult the parts manuals also available in our shop.