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Cummins  |  SKU: 5317106

5317106 | Genuine Cummins® ECM Engine Control Module

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Description:
An Engine Control Module (ECM) 5317106 - also called an Engine Control Unit (ECU) or Powertrain Control Module (PCM) in some vehicles - is the computer that manages and controls the engine’s operation.

Part Number: 5317106 
Condition: New
Manufacture/Brand: Cummins

Fits 5317106 For 
4B3.9, 6A3.4, 6B5.9, B GAS INTERNATIONAL CM556, B4.5, B4.5 CM2350 B129B, B4.5 CM2350 B146C, B4.5 CM2350 B147B, B4.5 RGT, B4.5S, B5.9 G, B5.9 GAS PLUS CM556, B5.9 LPG, B5.9 LPG PLUS CM556, B6.7 CM2350 B121B, B6.7 CM2350 B135B, B6.7 CM2350 B136C, B6.7 CM2350 B148B, B6.7 G CMOH6.0 B125, B6.7N CM2380 B150B, B6.7S, F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2350 F132B, F3.8 F102, G3.9, G5.9, G5.9 CM558, ISB (CHRYSLER), ISB CM2150, ISB CM2150 E, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150
B119, ISB/ISD4.5 CM2150 SN, ISB/ISD6.7 CM2150 B120, ISB/ISD6.7 CM2150 SN, ISB/ISD6.7 CM2880 B126, ISB3.9 CM2220 B107, ISB4.5 CM2150, ISB5.9G CM2180, ISB6.7 2010 DCX PICKUP, ISB6.7 2013 DCX CHASSIS
CAB, ISB6.7 CM2150 SQ, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISB6.7 CM2350 B103, ISB6.7 CM2350 B142, ISB6.7 CM2670 B153B, ISB6.7 G CM2180 B118, ISBE CM2150, ISBE CM800, ISBE2/ISBE3 CM850, ISBE4 CM850, ISD4.5 CM2150, ISD6.7 CM2880 D101, ISF2.8 CM2220, ISF2.8 CM2220 AN, ISF2.8 CM2220 EC, ISF2.8 CM2220 ECF2, ISF2.8 CM2220 F101, ISF2.8 CM2220 F117, ISF2.8 CM2220 F122, ISF2.8 CM2220 F126, ISF2.8 CM2220 F129, ISF2.8 CM2220 IAN, ISF3.8 CM2220, ISF3.8 CM2220 AN, ISF3.8 CM2220 F103, ISF3.8 CM2220 F110, ISF3.8
CM2220 F116, ISF3.8 CM2220 F134B, ISF3.8 CM2220 IAN, ISF3.8 CM2350 F109, ISF4.5 CM2220 F123, ISG11 CM2880 G106, ISG11 CM2880 G108, ISG12 CM2880 G107, ISG12 CM2880 G109, ISG12 G CMOH6.0 G111, QSB3.9 30 CM550, QSB3.9 CM2880 B138, QSB4.5 30 CM550, QSB4.5 CM2150 B108, QSB4.5 CM2250 B131, QSB4.5 CM2250 EC, QSB4.5 CM2350 B106, QSB4.5 CM2350 B122


Purpose of using 5317106:

 

1. Controls fuel injection

It determines how much fuel to inject into each cylinder and when, based on:

  • throttle position

  • airflow

  • engine temperature

  • oxygen sensor data

2. Controls ignition timing

The ECM decides when each spark plug fires, optimizing power, efficiency, and emissions.

3. Manages air–fuel ratio

It constantly adjusts the mixture for:

  • performance

  • fuel economy

  • emissions compliance

4. Regulates idle speed

The ECM controls the idle air valve or electronic throttle body to keep a smooth idle.

5. Monitors sensors and actuators

It communicates with dozens of sensors:

  • O2 sensors

  • MAF / MAP sensors

  • knock sensor

  • coolant temp sensor

  • crankshaft / camshaft sensors

And controls components like:

  • fuel injectors

  • ignition coils

  • EGR valve

  • variable valve timing

6. Stores trouble codes

When something goes wrong, the ECM triggers the Check Engine Light and stores diagnostic trouble codes (DTCs).


Signs of a Bad ECM Engine Control Module 5317106:

1. Check Engine Light Won’t Go Away

The ECM may:

  • Trigger random or incorrect trouble codes

  • Refuse to clear codes

  • Show codes that don’t match symptoms

2. Engine Misfires or Runs Rough

A failing ECM may send the wrong signals to:

  • Fuel injectors

  • Ignition coils

  • Air–fuel mixture controls

This can cause:

  • Rough idle

  • Misfires

  • Shaking

  • Poor running

3. Hard Starting or No Start

If the ECM can’t control fuel and spark timing, you may experience:

  • Long cranking before starting

  • Intermittent starting

  • No start at all (ECM completely dead)

4. Poor Fuel Economy

Bad fuel calculations from the ECM lead to:

  • Running rich (too much fuel)

  • Running lean (too little fuel)

Both reduce MPG and can damage the engine.

5. Loss of Power or Hesitation

Faulty ECM output may affect:

  • Throttle response

  • Acceleration

  • Fuel delivery

This can cause the engine to feel weak or sluggish.

6. Transmission Shifting Problems (if PCM combined)

On vehicles where the engine and transmission share a module, ECM/PCM issues may cause:

  • Hard shifts

  • Late shifts

  • Stuck in one gear (“limp mode”)

7. Electrical Issues or Random Behavior

A failing ECM may cause:

  • Dashboard warning lights flickering

  • Incorrect sensor readings

  • Fans running at odd times

  • Engine behaving differently day to day

8. Failed Emissions Test

Since the ECM controls emissions systems, a failure can cause:

  • High emissions

  • Incomplete readiness monitors

  • Failed smog inspection

 

About the Manufacturer – Cummins:

Cummins is a leading American manufacturer of diesel and natural gas engines, as well as power generation systems and emissions solutions. Founded in 1919 and headquartered in Columbus, Indiana, Cummins is known globally for its durable, high-performance engines used in trucks, buses, construction equipment, agriculture, and power systems.

The brand is widely respected for its innovation in clean diesel technology, including aftertreatment systems, turbochargers, and advanced electronics that help reduce emissions while maximizing engine efficiency and reliability.

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