H-D #406-41 (24540-41)

Brand New Production!  Looks like a "NOS" *  Part

Knuckle MOTOR CASE - Left Number Side
Replica of later 1941 - 1947 style with Long Ribs
Comes with blank VIN pad
Main bearing bore is with a cast-in Steel Insert - like OEM
Case uses the later 1940 - 1954 type Bearing Race
The cylinder deck, bore, motor mounts, and the main bearing bore are all left with .040-.060 of extra

material so Case can be perfectly matched machine to your original '36 - '47 Knuckle Right Case

For the advanced Motor Builder only
Made from strong aircraft 356 aluminum alloy, which has been heat treated to T6 specifications

(*If the H-D Factory were still making this CASE HALF this is how it would look)