C 2500 Truck 2WD V8-5.7L VIN R (1997)
Starter Motor: Description and Operation
SD Starter Motor
General
SD Series Starter Motor
The SD-255 straight-drive type starter motor covered in this section has enclosed shift levers.
The starter motor has the drive end housing extended to enclose the shift lever and solenoid plunger. The solenoid flange mounts to the extension of the
drive end housing with sealing compound between the flange and the field frame.
The starter motor bearings are lubricated during motor assembly and do not require service except during motor repair.
Identification
The part number can be found either stamped on the outside of the closed end frame or on an identification tag attached by a through-bolt.
