Service Manual

Engine: Cummins QSB4.5T
7B.40
Model 8042, 10042, 10054 Legacy Rev. 10/03
15. Connect the engine coolant temperature switch lead
(1).
16. Connect the oil pressure switch lead (2).
17. Connect the diagnostic system ground wire (3) at the
buss bar (4).
18. Install the locknuts and washers (5) that secure the
coldstart grid heater (6) to the frame studs.
19. Connect the back-up alarm harness connector (7)
from the back-up alarm (8).
MH5220
1
MH5210
2
3
4
MH49102
5
6
MH5250
7
8