Professional repair service for Volvo Penta MEFI 5 and MEFI 6 engine control modules used in marine applications. Send us your ECM and our engineering team will diagnose the fault, complete the repair, test the unit, and return it ready for installation.

Volvo Penta MEFI 5 and MEFI 6 ECM Repair

This service is intended for Volvo Penta marine ECMs used on marine power production engines from 1.0L to 5.7L. It also supports MEFI 6 ECM applications for Indmar 5.7L 350 Monsoon engines.

ECM Identification

5A: 12597744 | 5B: 12607802 | 5C: 12618020 | 5D: 12628090 | 5E: 12635518

6A: 12649040 | 6B: 12654117 | 6C: 12679057

Repair Process

Ship your ECM to us for diagnosis. We repair the unit when possible, test its operation, and return it ready to be reinstalled in the same engine. Our service includes a 1-year warranty, and our team is available to discuss the symptoms before you send your part.

If Your ECM Is Not Repairable

If your ECM cannot be repaired, we can clone the data from your original unit and supply a replacement ECM for $2,950. Contact us before shipping if you want to confirm compatibility and replacement availability.

Diagnosis and No-Fault-Service Policy

We diagnose the unit first. If it is not repairable or no problem is found, the service cost is $200 plus shipping. In that case, we will process a partial refund for the difference.

Why Choose ECM Engineering USA

Our engineering team has more than 15 years of experience, has repaired over 10,000 ECMs, and uses advanced simulation technology to support reliable testing. We provide technical assistance throughout the repair process.