Caterpillar 3406 | 4CK | 9X8085 | ECM Repair Service.

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

Caterpillar 3406 | 4CK | 9X8085 | ECM Repair

We first diagnose the unit. If it is not repairable or no problems are found, the cost is $200. In this case, we will process a partial refund for the difference.

Compatible Models for Part Number 9X-8085

Category	Model Name	Serial Prefix
Engine - Generator Set	3412 Generator Set	TGC
Engine - Generator Set	3412C Gen Set Engine	BAK
Engine - Generator Set	3412C Generator Set	4BZ
Engine - Generator Set	3412C Generator Set	9EP
Engine - Generator Set	3412C Generator Set	BCW
Engine - Generator Set	3412C Generator Set	DJN
Engine - Generator Set	3412C Generator Set	TFT
Engine - Generator Set	PM3412 Power Module	CAJ
Engine - Industrial	3412C Industrial Engine	BCS
Engine - Industrial	SCT673 Pumper	4TZ
Engine - Industrial	SPS342 Pumper	2LZ
Engine - Industrial	SPT342 Pumper	3CZ
Engine - Truck	3406C Truck Engine	4CK
Marine Products	3412C Generator Set	RTY
Marine Products	3612 Marine Engine	9RC
Marine Products	3616 Marine Engine	1PD

Important Note

The Caterpillar 3406 ECM (Electronic Control Module) 4CK is a vital component of the engine control system for the Caterpillar 3406 diesel engine. This module manages fuel injection, timing, and other engine functions, ensuring smooth and efficient operation. Key facts about this module:

The 3406 ECM 4CK is one of the most widely used engine control modules in the Caterpillar 3400 series.
It provides precise control of the engine's fuel system with high-speed data communication to optimize performance at all times.
Advanced diagnostic capabilities allow technicians to quickly identify and troubleshoot engine problems.
Repair requires specialized tools, diagnostic equipment, and detailed technical knowledge of the Caterpillar 3406 engine.
Common issues include wiring faults, sensor failures, and other internal component failures.

Our Caterpillar 3406 ECM 4CK repair service is backed by a 1-year warranty. Our experts not only repair your ECM but also ensure it is built to deliver reliable, long-lasting performance.

Common Problems

Blowing fuses
No communication
Engine shutting down
Fault codes in the unit
Intermittent faults
Oil intrusion
Water damage
Injector driver faults

Process

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

Why Trust Us

Our engineering team has over 15 years of experience, more than 10,000 repaired ECMs, and the latest simulation technology. We are always happy to assist you with any technical questions. 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

4 Steps