GM Service Manual Online
For 1990-2009 cars only

Starter Usage SD Starter Motor

Application

Specification

Type

SD-260

Part Number

10455050

Direction of Rotation

CW

Minimum AMPS

Maximum AMPS

47

70

Minimum RPM

Maximum RPM

6500

11000

Solenoid Switch Part Number

1114579

Pull-In Winding Amps

60-85

Pull-In Winding Volts

10

Hold-In Winding Amps

10-20

Hold-In Winding Volts

10

Starter Usage MT-28 Starter Motor

Application

Specification

Type

28-MT

Starter Part Number

1113296

Direction of Rotation

CW

Minimum AMPS

Maximum AMPS

125-190 A

Minimum RPM

Maximum RPM

3000--5600 RPM

Solenoid Switch Part Number

10456454

Switch Volts

12

Pull-In Winding Amps

52-59

Pull-In Winding Volts

10

Pull-In Winding Ohms

0.17-0.19

Hold-In Winding Amps

12-14

Hold-In Winding Volts

10

Hold-In Winding Ohms

0.76-0.81