Try a TESTER ECM Before You Commit
Diagnose Your Truck with Confidence
A Tester ECM is a fully remanufactured ECM you can temporarily install in your truck to determine whether your issue is ECM-related before committing to a permanent replacement.
Perfect for troubleshooting problems like:
* Active fault codes
* Random sensor codes
* Engine misfires
* No-start conditions
* No communication issues
* Unstable or lost power
* Fault codes that won’t clear
By installing a Tester ECM, you can quickly see whether your truck’s problems disappear, become inactive, or return to normal operation.
---
How the Tester ECM Program Works
Pricing
**$1,695** Reman ECM
**$600** Refundable Core Deposit
* Plus shipping
7-Day Testing Period
You have **7 days from the delivery date** to test the ECM on your truck.
Example:
If your ECM arrives on Monday, you have until the following Monday to return it to UPS.
Refund Information
If our TESTER ECM is something you would like to keep because it fixed your trucks problems, then keep it. But if you have determined it wasn't the ecm that was causing the truck's issues, then return it within the 7 days from the date it was delivered.
Once returned:
* **$300 tester/restocking fee applies**
* Remaining ECM cost is refunded
* Core deposit is fully refunded
(Shipping is not refunded)
To return: Call us for the return order information: 727-494-5514.
---
Why Use a Tester ECM?
A Tester ECM can help confirm whether your truck’s issue is truly ECM-related by checking if:
✅ Fault codes clear
✅ Misfires disappear
✅ Sensor codes become inactive
✅ Power is restored and stable
✅ No-start issues are resolved
✅ Communication problems return to normal
---
Contact Heavy Duty Powertrain, Inc.
Ready to Order or Have Questions?
📞 **Call / Text / WhatsApp**
727-494-5514 (USA)
Hours:
9:00 AM – Midnight EST
---
About Us
Heavy Duty Powertrain, Inc.
We have been selling and supporting **Cummins ECMs for over 18 years** — and even longer before officially forming the corporation.
We appreciate the opportunity to help keep trucks running for hardworking people and businesses across local communities around the world.
Thank you for trusting us with your ECM and harness needs.