Cummins recall: B4.5 and B6.7 Engine Control Module Replacement Safety Campaign
Yes – some of these vehicles are being recalled
- What's wrong
- On affected engines the Engine Control Module (ECM) may develop an internal electrical short circuit that could possibly blow a fuse in the ECM’s electrical supply resulting in an engine stall without warning.
- What to do
- Contact a Cummins dealer to book the free repair. Replace the existing ECM with a new (remedy) ECM.
Source: Driver and Vehicle Standards Agency (DVSA)
Check your reg on DVSA ↗
What’s wrong
On affected engines the Engine Control Module (ECM) may develop an internal electrical short circuit that could possibly blow a fuse in the ECM’s electrical supply resulting in an engine stall without warning.
The fix
Replace the existing ECM with a new (remedy) ECM.
Vehicles affected
| Model | Built from | Built to | Vehicles |
|---|---|---|---|
| ISB4.5E6C180B Diesel Engine | 27 Nov 2024 | 27 Nov 2024 | 2 |
| ISB4.5E6180B Diesel Engine | 21 Nov 2024 | 28 Nov 2024 | 3 |
| ISB4.5E6210B Diesel Engine | 20 Nov 2024 | 20 Nov 2024 | 2 |
| ISB4.5E6210H Diesel Engine | 20 Nov 2024 | 21 Nov 2024 | 3 |
| ISB4.5EV140B Diesel Engine | 6 Dec 2024 | 6 Dec 2024 | 1 |
| ISB6.7E6A250B Diesel Engine | 20 Nov 2024 | 16 Dec 2024 | 2 |
How to check your vehicle
Use the official DVSA checker with your registration number to see if your exact vehicle is included. If it is, the manufacturer should have written to the registered keeper. The repair is free, even if you bought the vehicle second-hand.
Updated 5 March 2025. This page summarises an official notice. Details can change – always follow the official notice.