Overview – FUEL CUT-OFF SOLENOID VALVE C3970739
C3970739 is the CUMMINS fuel cut-off solenoid valve used on CUMMINS B and C series diesel engines with electric fuel shutoff. We can supply this part number, in stock or available on order – welcome to enquire by part number.
Parts Characteristics
C3970739 is an electric fuel cut-off solenoid valve that stops the fuel supply when the ignition circuit is opened, shutting the engine down cleanly. The coil is sealed against fuel and vibration, and the plunger and return spring are matched to the original valve body so the shutoff action is positive. The mounting and terminal layout follow the OEM design for a direct fit. The valve body is machined to the original bore and the coil winding is matched to the OEM resistance range for reliable pull-in.
Applicable Models & Applications
This solenoid valve is used on CUMMINS B and C series diesel engines where the fuel supply is controlled by an electric shutoff, including industrial and generator applications. Confirm the coil voltage and the mounting pattern against the valve removed from your engine before ordering. The same valve family covers stationary and mobile installations, and we can confirm the correct voltage variant from your engine serial.
Maintenance & Replacement
Test the solenoid when the engine fails to stop or will not shut down: check for battery voltage at the terminals, listen for the plunger click and measure the coil resistance. Keep the plunger bore clean, replace a sticking or burned-out valve, and always disconnect power before removal. Check the wiring and connectors for chafing before condemning the valve, as a poor ground is a frequent cause of shutoff failure.
Price Reference (USD)
Expect to pay roughly USD 60 – 180 for fuel cut-off solenoid valve (C3970739). Bulk orders and repeat customers receive better rates; final pricing is confirmed by our sales team together with stock availability.
Value & Service
Every C3970739 solenoid is bench-tested for coil resistance and plunger travel before dispatch, and we confirm the correct voltage for your engine. As a commonly replaced shutoff part, it is held in stock and can ship worldwide with DHL, FedEx or UPS. Because shutoff valves fail without warning, we keep this number in stock with the mounting hardware, so a repair is not held up by the part.
When you need fuel cut-off solenoid valve (C3970739), Racer Machinery is ready to help. We supply genuine-spec CUMMINS replacement parts, confirm compatibility with your machine model, and arrange DHL, FedEx or UPS delivery.
