Machinery & Truck Parts
CUMMINS ISB Computer / Electronic Control (ecm) For Sale (Part P3944124)
About This Cummins ISB ECM
This is a good, used engine ECM (electronic control module) for the Cummins ISB, carrying part number P3944124. The ECM is the engine's computer — it manages fuel delivery, timing, and emissions, and a failed module can leave a truck no-start or in limp mode. A tested used ECM is far more cost-effective than new, but because ECMs are typically matched (and sometimes programmed) to a specific engine serial, confirming compatibility before purchase is essential. The part is inspected and tested before it ships, identified by its stock number (324743), and backed by included warranty coverage. Freight ships nationwide, quoted to your delivery ZIP. Use the page photos and listed details to compare it carefully with the component being replaced before purchase. Have your engine's year, make, model, application, and serial number ready and call (800) 696-5459 to confirm fitment before ordering.
Key Specs at a Glance
- Fits
- Cummins ISB engine
- Part Type
- ECM
- Part Number
- P3944124
- Condition
- Good Used
- Stock #
- 324743
- Warranty
- Included
- Shipping
- Ships Nationwide
Part Details
| Brand | Cummins |
| Part # | P3944124 |
| Part Type | ECM / Computer |
| Condition | Good Used |
| Stock # | 324743 |
| Warranty | Included |
| Shipping | Nationwide — Call for Quote |
Buying Information
ISB Computer / Electronic Control (ecm) FAQ
Does this ISB Computer / Electronic Control (ecm) come with a warranty?
Yes. A warranty is included; call (800) 696-5459 to review the specific terms.
How much does shipping cost?
Nationwide freight shipping is available. Rates vary by destination and item size; call (800) 696-5459 with the delivery ZIP for a quote.
What is your return policy?
Eligible items may be returned within 30 days of delivery, and domestic return shipping is free.
How do I confirm fit and order this?
Identify the item by stock number 324743 and call (800) 696-5459 to confirm fit and order.