Shifter carrier screw

This screw retains the plungers in the early design carrier.

1658A
1952-1971

This screw is not called out as a separate part until 1961.

The Iron Sportster trap door assembly holds the mainshaft, countershaft, and shifter mechanism.

The Iron Sportster shifter comes as the 34009-52 assembly.

1658A 1952-1971 The countersunk screw is staked in to keep it in place. Nominal size 6-32 x 7/16 countersink. 1978 parts book calls out "Pozidrive" ie, Philips head. Perhaps that is what started in 1961, whereas all earlier carriers used this straight-slot screw.