CAT ECU ECM Controller 374-2640 | 582-6898 | 478-3600

Product Overview

Part Numbers:

• 374-2640
• 582-6898
• 478-3600

Product Name: Engine Electronic Control Module (ECM / ECU)

Application:
Caterpillar C4.4 & C7.1 Engine Electronic Control System

The 374-2640 / 582-6898 / 478-3600 ECM is the core engine controller responsible for fuel injection management, engine monitoring, fault diagnosis, communication control, and engine protection functions. It is widely used in Caterpillar excavators, wheel loaders, dozers, compactors, and industrial power equipment equipped with C4.4 and C7.1 engines.

Compatible Engine Models

Caterpillar Engines

• CAT C4.4
• CAT C7.1

Typical Machine Applications

• CAT 313D2 GC
• CAT 318D2 L
• CAT 320 GC
• CAT 323GC
• CAT 326 GC
• CAT 330 GC
• CAT 924K Wheel Loader
• CAT 930K Wheel Loader
• CAT 950 GC
• CAT 950L / 950M
• CAT 962 / 962L / 962M
• CAT D3K2 / D4K2 / D5K2 / D6K2 Series
• CAT M315D2 / M317D2 / M320D2 Series

Main Functions

The ECM serves as the "brain" of the engine and controls:

Engine Management

• Fuel injection timing
• Engine speed regulation
• Power output optimization
• Cold start control

Monitoring & Protection

• Engine temperature monitoring
• Oil pressure protection
• Coolant system monitoring
• Sensor fault detection

Diagnostic Functions

• Fault code storage
• Real-time troubleshooting
• Communication with CAT ET software
• Performance monitoring

Communication Control

• CAN Bus communication
• Sensor and actuator management
• Machine controller interaction
• Display monitor communication

These functions help maximize engine efficiency, reliability, and fuel economy.

Key Features

✓ OEM Standard Design

Direct replacement for original Caterpillar ECM.

✓ Stable Performance

High-speed processor and reliable circuit design ensure accurate engine control.

✓ Heavy-Duty Construction

Aluminum housing provides excellent resistance to:

• Heat
• Dust
• Moisture
• Vibration

✓ Long Service Life

Designed for demanding construction, mining, and industrial environments.

✓ Tested Before Shipment

Every controller undergoes:

• Appearance inspection
• Connector inspection
• Communication testing
• Basic functional verification

Common Failure Symptoms

You may need to replace the ECM if your machine experiences:

• Engine will not start
• Loss of power
• Injector fault codes
• Communication failure
• Intermittent shutdown
• Excessive fuel consumption
• No connection with diagnostic software
• Water-damaged or burned ECU

Cross Reference Part Numbers

• 374-2640
• 3742640
• 582-6898
• 5826898
• 478-3600
• 4783600

Related ECM series for CAT C4.4 / C7.1 applications may vary depending on engine arrangement and emission configuration.

Important Notice

Before Ordering Please Provide:

✔ Machine Model

✔ Machine Serial Number

✔ Engine Serial Number

✔ Photo of Existing ECM Label

✔ Original Part Number

Programming Notice

ECU / ECM controllers may require software matching before installation.

To ensure correct configuration, please provide:

• Machine nameplate photo
• Engine nameplate photo
• Original controller label photo
• Original part number

Our technicians will verify compatibility and prepare the correct program before shipment.

Package Includes

• 1 × ECM / ECU Controller
• Protective Packaging
• Quality Inspection Report

Why Choose JISION?

JISION specializes in construction machinery electronic parts:

• ECU / ECM Controllers
• Engine Wiring Harnesses
• Complete Excavator Harnesses
• Monitor Displays
• Solenoid Valves
• Sensors
• Diagnostic Tools

Our Advantages

✅ OEM New & Original Used Stock Available

✅ Program Matching Service

✅ Professional Technical Support

✅ Strict Quality Inspection

✅ Worldwide Shipping

✅ One-Stop Construction Machinery Parts Solution

JISION Marketing Slogan

JISION – Professional Supplier of Construction Machinery Electronic Components. Reliable Quality, Global Service, Fast Delivery.