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12581144 Genuine GM Engine Control Module For Buick Cadillac 2004–2008
12581144 Genuine GM Engine Control Module For Buick Cadillac 2004–2008
12581144 Genuine GM Engine Control Module For Buick Cadillac 2004–2008
12581144 Genuine GM Engine Control Module For Buick Cadillac 2004–2008
12581144 Genuine GM Engine Control Module For Buick Cadillac 2004–2008
12581144 Genuine GM Engine Control Module For Buick Cadillac 2004–2008

12581144 Genuine GM Engine Control Module For Buick Cadillac 2004–2008

P/N: 12581144 Manufactured by: GM
$589.00 - $589.00
$589.00
$589.00 - $589.00
$589.00
2 in Stock
Condition: New
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At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The 12581144 Genuine GM Engine Control Module is an electronic control unit designed to manage engine operating functions in specified Buick and Cadillac vehicles equipped with 2.8L and 3.6L V6 gasoline engines. The module processes signals from engine sensors and coordinates electronic control outputs to support fuel delivery, ignition timing, and engine management functions according to the vehicle's programmed configuration.

Vehicle Compatibility

Year Vehicle Engine Trims
2008 Buick LaCrosse 3.6L V6 – Gas CXS
2007 Buick LaCrosse 3.6L V6 – Gas CXS
2007 Cadillac CTS 2.8L V6 – Gas Base
2007 Cadillac CTS 3.6L V6 – Gas Base
2006 Buick LaCrosse 3.6L V6 – Gas CXS
2006 Buick Rendezvous 3.6L V6 – Gas CX
2006 Buick Rendezvous 3.6L V6 – Gas CXL
2006 Cadillac CTS 2.8L V6 – Gas Base
2006 Cadillac CTS 3.6L V6 – Gas Base
2006 Cadillac SRX 3.6L V6 – Gas Base
2005 Buick LaCrosse 3.6L V6 – Gas CXS
2005 Buick Rendezvous 3.6L V6 – Gas CXL Plus
2005 Buick Rendezvous 3.6L V6 – Gas Ultra
2005 Cadillac CTS 2.8L V6 – Gas Base
2005 Cadillac CTS 3.6L V6 – Gas Base
2005 Cadillac SRX 3.6L V6 – Gas Base
2004 Buick Rendezvous 3.6L V6 – Gas CXL
2004 Buick Rendezvous 3.6L V6 – Gas Ultra
2004 Cadillac CTS 3.6L V6 – Gas Base
2004 Cadillac SRX 3.6L V6 – Gas Base


Product Features

The 12581144 EngineΒ Control Module manages electronic engine control functions within compatible Buick and Cadillac powertrain systems.

  • Processes engine sensor inputs to determine operating conditions and required control responses
  • Coordinates electronic fuel delivery commands according to the programmed engine management strategy
  • Regulates ignition timing commands using monitored engine speed and operating load information
  • Supports communication between engine control electronics and associated vehicle diagnostic systems
  • Manages control signals required for coordinated operation of compatible engine electrical components
  • Maintains programmed engine operating parameters within the specified vehicle powertrain control configuration

General Specifications

Condition New
Part Number 12581144
Brand Genuine GM
Part Type Engine Control Module
Years 2004–2008
Vehicle Buick LaCrosse, Buick Rendezvous, Cadillac CTS, Cadillac SRX
Engine 2.8L V6 Gas, 3.6L V6 Gas
Fitment Type Direct Replacement
Dimensions 6.3 x 6.4 x 3.3 inches
Weight 1.50 lbs


Installation Notes

The 12581144 Engine Control Module is intended for the listed Buick and Cadillac applications with the specified gasoline V6 engine configurations. Installation may require vehicle-specific programming and electronic system initialization to establish proper communication with the existing powertrain and security systems.

Always verify model year, engine displacement, control module configuration, electrical connectors, and programming requirements before installation.