John Deere L12 | RE532629 | RE522527 | RE532628 ECM Repair


John Deere L12 RE 532629 | RE 522527 | RE 532627 | RE532628 | RE518176 ECM Repair Service.

Your ECM will be returned fully reconditioned, tested, and ready to be installed back on the exact vehicle it came off, saving you the time and expense of having a new ECM programmed to your engine. 


John Deere L12 RE 532629 | RE 522527 | RE 532627 | RE532628 | RE518176 ECM. Your ECM will be returned fully reconditioned, tested, and ready to be installed back on the exact vehicle it came off, saving you the time and expense of having a new ECM programmed to your engine. 

Are you in need of an ECM repair service for your L12 John Deere? Look no further than our expert technicians who specialize in diagnosing and fixing any issues that may arise with your equipment’s engine control module.

Additionally, the ECM  L12 incorporates advanced diagnostic capabilities. It is equipped with sophisticated algorithms that can detect and diagnose potential issues or malfunctions within the engine system. This proactive approach helps identify problems early on, preventing costly breakdowns and reducing downtime.

John Deere P/N: RE532629 | RE522527 | RE532627 | RE532628 | RE518176

We first diagnose the unit; if it’s not repairable or no problems are found, the cost is $200, and the shipping cost.

In this case, we will process a partial refund for the difference.

Other OEM Part Numbers:

RE518177, RE532628, RE519774, RE522528 , RE522529, RE508774, RE522509, RE508774, RE519774, RE519775, RE532628, SE502848, RE532627, RE532629, RE71447, SE502849, RE522510, RE506664, RE518176


L12 ECM Important Information:

The ECM (Engine Control Module) L12 is a highly advanced and critical component in John Deere equipment. Designed to optimize engine performance and efficiency, it is crucial in monitoring, controlling, and regulating various parameters of the machine’s engine system.

The ECM is precisely engineered to meet the demanding requirements of John Deere machines, ensuring seamless integration and compatibility. It acts as the engine’s brain, continuously collecting data from sensors positioned throughout the machine. These sensors monitor crucial factors such as engine speed, temperature, fuel consumption, air intake, and exhaust emissions.

With this information, the ECM can adjust the engine’s operations, optimizing fuel injection, ignition timing, and other parameters. This precision control enables the engine to run at peak efficiency, maximizing power output while minimizing fuel consumption and emissions.


In summary, the ECM L12 is a technologically advanced module vital in optimizing John Deere equipment’s performance, efficiency, and reliability. Its ability to monitor and control various engine parameters, provide diagnostics, and withstand demanding conditions contributes to the overall productivity and longevity of the machines it is integrated into.

The ECM (Engine Control Module) is essential in John Deere machines. The onboard computer monitors and controls various components within the machine, ensuring optimal performance and efficiency. In this case, let’s discuss three specific ECM models: ECM John Deere L12 RE 532629, ECM RE 522527, and ECM RE 532627.


Our ECM repair service even has a one-year warranty. Our experts not only repair your ECM but also ensure that it’s built for reliability and long-lasting performance.

Common Problems

  • Blowing fuses
  • No communication
  • Engine shutting down
  • Fault codes in the unit
  • Intermittent faults
  • Oil intrusion 
  • Water damaged
  • Restricted functionality
  • The machine doesn´t start
  • Lack of power
Replaces previous part number RE522529.  Engine controller fits these equipment models:
  • 444JR Forklift
  • 120 Excavator
  • 700H Crawler Dozer
  • 810D Forwarder
  • 700J Crawler Dozer
  • 444J, 544J Loader
  • 160CLC, 200CLC Excavator
  • 120C Excavator
  • 2054 Excavator Logger
  • 750J Crawler Dozer
  • 605C Crawler Loader
  • 310SG
  • 310G
  • 310J



All you need to do is ship your unit to us, and we will diagnose the faults and send the fixed unit back to you free of shipping cost.

Why trust us

Our engineering team has over 15 years of experience, more than 10K repaired ECMs, and the latest simulation technology. We are always happy to provide technical assistance. Feel free to contact us to discuss the faults you are experiencing before sending in your parts.


ECM Engineering USA / ECM Repair USA

John Deere L12 ECM | RE532629 | RE522527 | john deere ecu repair | john deere ecm repair | RE532628

RE518176, 310SG, 310G, 310J

RE532628 Engine Controller



4 Steps

Facebook | Twitter | LinkedIn 

Recent Searches

1. John Deere L12 ECM repair
2. Engine Control Module repair for John Deere L12
3. Troubleshooting ECM issues in John Deere L12
4. Repair services for John Deere L12 ECM
5. John Deere L12 electronic control module repair
6. ECM diagnostics and repair for John Deere L12
7. Fixing ECM problems on John Deere L12
8. Reliable ECM repair for John Deere L12
9. Restoring functionality to John Deere L12 ECM
10. Expert solutions for John Deere L12 ECM issues

Additional information

Weight100 oz
Dimensions11 × 8 × 6 in