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SKU:
NLT2T03202
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12V Fuel Shutoff Solenoid for Cummins 6BT 5.9L – 3991624 / SA-4959-12
$112.89
In Stock
$112.89
Sale price
$112.89
Regular price
This is a 12-volt fuel shutoff solenoid for Cummins 6BT 5.9L diesel applications using reference numbers 3991624 or SA-4959-12.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Engine family | Cummins 6BT 5.9L diesel |
|---|---|
| Application note | Industrial, equipment and power-unit installations using the matching solenoid configuration |
Product Overview
The shutoff solenoid operates the fuel-control linkage that allows the engine to run when energized and stops fuel delivery when the key or shutdown circuit is switched off. A weak pull-in action, intermittent hold function, or a plunger that will not retract can cause a no-start condition or an engine that will not shut down normally.
This replacement is best matched by the number on the existing solenoid as well as voltage, bracket position, connector style, and linkage geometry. The 3991624 / SA-4959-12 configuration is commonly sold for Cummins 6BT 5.9L industrial and equipment installations.
Key Features & Performance
- 12V electrical configuration for diesel shutdown control
- Designed around the 3991624 / SA-4959-12 reference configuration
- Helps restore positive fuel-on/fuel-off operation
- Useful for equipment where a failed shutdown actuator causes hard starting or failure to stop
Part Numbers & Specifications
- Reference numbers: 3991624, SA-4959-12
- Voltage: 12V
- Component: fuel shutoff / stop solenoid
Before You Order
Compare the original solenoid number, voltage, electrical connection, mounting bracket and plunger/linkage before ordering. Cummins 6BT installations can use different shutdown arrangements depending on equipment manufacturer and fuel system.
Frequently Asked Questions
What does this solenoid do?
It moves the fuel-shutoff linkage so the engine can run when energized and stops fuel delivery when the shutdown circuit is activated.
Is this only identified by the engine model?
No. The 6BT was used in many machines, so matching 3991624 / SA-4959-12 and the physical configuration is the safer way to order.
Is this a Cummins-branded part?
This listing is for a replacement component referenced to the listed Cummins/Synchro-Start style numbers; brand status should not be assumed from the reference number alone.