Mopar starter ID

[SKR8PN]

The starter in the first 2 pictures is a slant6/small block starter,as in 273,318,340. The one in the second set looks to be from a tractor or other commercial application.

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Chrysler made only 2 gear reduction starters.  One was standard and the other was a high torque model.  The high torque model is a tad longer (in the field winding area) than the standard version.  Other than that, they're the same.

These starters will fit ANYTHING from a slant six to a 426 hemi.