Important Information – Used ECMs

• Tested & Verified: Good, tested used electrical components.

• Programming Required: Must be flashed to your vehicle’s specific VIN by a dealer or qualified diesel shop before installation.

• Programming Not Included: Buyer is responsible for all programming.

• Return Policy: Electrical components that have been opened, installed, or plugged in are generally non-returnable unless covered under warranty.

12589161 Used GM/Chevrolet 6.0L Engine Control Module (ECM/PCM)

This used GM 12589161 Engine Control Module (ECM), also known as a Powertrain Control Module (PCM), is listed for Chevrolet and GMC vehicles equipped with compatible 6.0L V8 gasoline engines.

The ECM manages essential engine operating functions, including fuel injection, ignition timing, sensor communication, engine diagnostics, and electronic powertrain controls. A properly functioning engine computer is critical for reliable vehicle operation and engine performance.

A tested used GM ECM provides a cost-effective replacement option for a failed or malfunctioning engine control module. For commercial fleet operators, maintenance facilities, and independent repair shops, sourcing quality used electronic components can help reduce repair expenses and extend the service life of existing vehicles.

This module requires VIN-specific programming before installation. Programming must be performed by a dealer or qualified repair facility with the appropriate GM diagnostic and programming equipment.

Important Compatibility Note: GM 6.0L V8 engines were used in numerous vehicle configurations with different ECM hardware and software calibrations. Verify the original ECM service number, vehicle VIN, model year, engine configuration, and calibration requirements before purchasing.

Part Specifications

OEM Part Number: 12589161
Manufacturer: General Motors (GM)
Service Number: 12602801
Stock Number: 10E-12589161-STK
Component Type: Engine Control Module / Powertrain Control Module (ECM/PCM)
Condition: Used – Tested
Listed Engine Manufacturer: General Motors / Chevrolet
Listed Engine Application: 6.0L V8
Fuel Type: Gasoline
Vehicle Manufacturers: Chevrolet / GMC
Programming Required: Yes – VIN-Specific
Programming Included: No
Typical Applications: Compatible GM Trucks, Vans, and Commercial Vehicles
Hardware Identification: Verify Against Original Module

Common Applications

The 12589161 ECM is listed for GM/Chevrolet 6.0L gasoline engine applications.

Potential vehicle applications may include select configurations of:

• Chevrolet Silverado 2500HD / 3500

• GMC Sierra 2500HD / 3500

• Chevrolet Express 2500 / 3500

• GMC Savana 2500 / 3500

• Chevrolet Suburban 2500

• GMC Yukon XL 2500

These are general vehicle families equipped with GM 6.0L V8 engines, not confirmed direct fitments for part number 12589161.

Important Compatibility Note: Matching the engine size alone does not guarantee ECM interchangeability. Confirm the original module service number, hardware configuration, VIN, transmission, and emissions calibration before ordering.