Cummins 4BT – Cold Start Timing Advance System (KSB) – Electrical Solenoid Style

The electrical solenoid style KSB is used on 1991 model and newer B series automotive engine ratings using the
Bosch VE fuel pump.
Note: The wax motor style KSB is used on pre-1991 B series automotive engine ratings using the Bosch VE fuel pump. See Section (5-07), Cold Start Timing Advance System (KSB) – Wax Motor Style, for additional information.