Part Description
A. Fits Sportster 1957-1985, must be installed with tappet screws and nuts that match your pushrods (OEM 18508-52B), Big Axle standard size (outside diameter .731")
Text excerpt from the catalog:
Jims' American made solid tappet assemblies are made from aircraft quality American steel, precision machined, heat treated and ground to less than .0002" total indicator readings at a 16 finish. Available in standard or .005" oversize. The Big Axle tappets feature extra thick tappet rollers that have increased strength and won't deform when used in combination with High Lift Performance cams.
