Cummins 4BT – Engine Electrical System Replacement Procedures – Alternator – Replacement

Preparatory Steps:
• Disconnect the ground cable from the battery ter­minal.
• Remove the drive belt from the alternator pulley.

11 mm
Remove and tag all wires and complete the following steps.

13 mm
Remove the alternator link capscrew.

16 mm
Remove the alternator mounting capscrew.

To assemble the alternator, the alternator mounting com­ponents must be loosened and tightened in the following
sequence.
1. Aiternator-to-alternator bracket capscrew.
2. Lower brace-to-alternator capscrew.
3. Alternator-to-water inlet capscrew.
4.Water inlet-to-block capscrews.
NOTE: Wrench size and torque value is determined by the make and model of alternator. Refer to the Engine Component Torque Values.