Caterpillar 3176 ECM 7LG | Repair Service


We provide repair services for Caterpillar 3176 ECM 7LG. Once repaired, the ECM will be fully reconditioned, tested, and ready to be installed on the exact engine it was taken off. This will save you the time and expense of programming a new ECM for your machine.


Caterpillar 3176 ECM 7LG repair service. Your ECM will be returned fully reconditioned, tested, and ready to be installed back to the exact engine it came off, saving you the time & expense of having a new ECM programmed to your machine.


Caterpillar 3176 ECM 7LG

ECM 40-PIN Part # 0R6347-01, 0R6132-00, 0R634701, 10384150
Part # 0R6347-01, 0R6132-00, P/N: 0R634701, 0R613200, OR6860-00, 0R6302-00, 0R630200, 116-1407-00, 116140700

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

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

Important note:

The Caterpillar 3176 engine is a popular choice for heavy-duty trucks and other industrial applications where high performance and durability are required. The ECM (engine control module) in the 3176 engine is a vital component that helps to ensure proper operation and performance.

The 7ALG module specifically refers to the ECM used in the 3176 engine from 1991-1993. Here are some important things to know about this module:

1. Diagnostic capabilities: The 7ALG module includes basic diagnostic capabilities, but is not as advanced as later generations of ECMs. Additional diagnostic tools and expertise may be required for more complex troubleshooting.

2. Engine protection: The 7ALG module includes features like overspeed protection, low oil pressure shutdown, and high coolant temperature shutdown to protect the engine from damage.

3. Fuel efficiency: The 7ALG module does not have advanced fuel monitoring features, but regular maintenance and tuning can help improve fuel efficiency.

4. Compatibility: The 7ALG module is specific to the 3176 engine, and is not compatible with other Caterpillar engines.

5. Maintenance: Like any electronic component, the 7ALG module requires regular maintenance and inspection to ensure proper operation. It is important to follow manufacturer guidelines and consult with a qualified technician for any repairs or replacements.

Overall, the Caterpillar 3176 ECM 7ALG module is an important component of the engine’s electrical system. Proper maintenance and care are essential to ensure reliable and efficient operation of the engine. If you encounter any issues with your ECM, it’s important to consult with a qualified technician who can help diagnose and repair the problem.

A 1-year warranty even backs our Caterpillar 3176 ECM 7LG | repair service. 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 unit
  • Intermittent faults
  • Oil intrusion
  • Water damaged
  • Injector driver faults


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

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 assist you with any technical assistance we can. Feel free to contact us to discuss the faults you are experiencing before sending in your parts.

ECM Engineering USA / ECM Repair USA

Truck ECM Repair | ECM Repair Truck

0R6860 (0R6860=1122069) ECM fits Caterpillar Engine


CAT 3176 (2YG, 7LG Prefix, “Fat” ECM)

Cat 10R5886

Caterpillar 3176 ECM | Engine Control Module


75C 75

4 Steps

Additional information

Weight160 oz
Dimensions11 × 14 × 7 in