Cummins Genuine Parts 4089577 / 3931570 Fuel shut off solenoid
Cummins Electrical Solenoids
Our Cummins Genuine Parts solenoids are manufactured to exacting OEM specifications for perfect fit and superior performance. A new Cummins Electrical solenoid will restore precise, quick starts in a vehicle when it’s time to replace an older one.
How Solenoids Work
Solenoids work as electromagnetic switches, serving as the link between the ignition and starter. The solenoid engages when the ignition key is turned, creating a link to allow for the flow of electricity to the starter. Once the engine starts, the solenoid disengages, cutting off the flow of electric. Solenoids have wire coils that wrap around a mobile core. As electricity travels through the coil, the core becomes magnetized, which creates force to push the mobile core outward to engage gears on the starter.
Please note: There are 2 different bolt spacings on the mounting bracket.
Make sure yours is 2.5" before ordering this part!
