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12_994ae358-03ca-4827-8a46-d402fdd5d2b4 - Northline Parts

12V Fuel Shutoff Solenoid 3921978 / 3918600 for Cummins 6C 6CT 6CTA 8.3L

SKU: NLT2T03771
$102.79 In Stock
$102.79
Sale price  $102.79 Regular price 
Ships for free in 2–4 business days.
This is a replacement fuel-stop solenoid for 6C, 6CT, 6CTA 8.3L fuel-pump shutdown applications. It is intended to restore positive key-off engine shutdown when the original solenoid sticks, loses electrical response or can no longer move the fuel-control linkage correctly.
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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
Application Models / Details
Cummins engines 6C, 6CT, 6CTA 8.3L fuel-pump shutdown applications

Product Overview

A failing stop solenoid may produce a no-shutoff condition, intermittent shutdown, no-start if it remains in the fuel-off position, or a click without full plunger travel. Before replacement, verify power, ground and linkage movement so an electrical-feed problem is not mistaken for a bad solenoid.

Cummins replacement references identify 3921978 as a 12V fuel-pump shutoff solenoid for 6C/6CT/6CTA engines.

Key Features & Performance

  • Restores electrically controlled engine shutdown
  • Part-number-focused fitment for diesel fuel-control systems
  • Designed to replace a failed/sticking stop-solenoid function
  • Key specification(s): 12V

Replaces / Cross-References

3921978, 3918600

Fitment Notes

We do our best to list all compatible models, but equipment manufacturers may use different components within the same model based on engine, serial number or production date. Compare the original part and reference numbers before ordering.

Frequently Asked Questions

How do I verify fitment?
Compare the listed model/application, reference numbers, voltage/specification where shown, connector style and physical configuration to the part being removed. Serial-number breaks can apply on industrial equipment.

Is this an OEM part?
This listing is for a replacement component. It should not be assumed to be a genuine OEM-branded part unless the product packaging/listing explicitly states that.

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