GM Service Manual Online
For 1990-2009 cars only

Starter Usage SD Starter Motor

Application

Specification

Specification

Type

SD-255

SD-260

Part Number

10455065

10455050

Direction of Rotation

CW

CW

Minimum AMPS

Maximum AMPS

55

85

47

70

Minimum RPM

Maximum RPM

7000

12000

6500

11000

Solenoid Switch Part Number

1115618

1114579

Pull-In Winding Amps

24-29

60-85

Pull-In Winding Volts

5

10

Hold-In Winding Amps

16-20

10-20

Hold-In Winding Volts

10

10

Starter Usage 28-MT Starter Motor

Application

Specification

Type

28-MT

Starter Part Number

1113296

Direction of Rotation

CW

Minimum AMPS

Maximum AMPS

130-190 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