Cummins ECM 4054322 Rebuild & Repair Services
At Unitech Electronics, we professionally repair and rebuild Cummins ECMs, including the robust 4054322 module found in QSK45 and QSK50 engines. If your unit has lost communication, shows injector faults, or fails to power up, our team is ready to assist.
Our technicians use OEM-grade diagnostic equipment to test each ECM on advanced bench systems, ensuring accurate and reliable performance. We preserve your original software and focus solely on hardware-level repairs, all backed by a 1-year warranty.
Clients across North America — from mining to marine to industrial sectors — rely on our services with confidence.
📋 Reference Numbers
P/N: 4054322
MFG P/N: 0300-5533
Other Cross References:
4054323
4921776
4921774
2871202 (Related variant)
⚠️ Most Common Issues
No communication via J1939 / J1708
Internal power supply failure
No injector signal
ECM not powering on
Constant fault codes despite component replacement
Water or corrosion damage on PCB
Overheating due to failed voltage regulators
contact@unitechelectronics.ca
+1(888)405-7730
❓ Frequently Asked Questions (F.A.Q)
Q: Do I need to reprogram the ECM after repair?
A: No. We only repair the hardware. Your original software calibration will remain untouched.
Q: What if the ECM is water-damaged?
A: We can attempt repair, but severe corrosion might render the module non-repairable. A bench test is required first.
Q: How long does the repair take?
A: Standard turnaround is 2–4 business days. Rush service is available upon request.
Q: Do you provide warranty?
A: Yes. We offer a 1-year limited warranty covering hardware-related issues.