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ACDelco 21812735 Engine Control Module ECM Computer

(Chevrolet Silverado 1500 2004, Suburban 1500 2004, Silverado 2500 HD 2004, Tahoe 2004, Trailblazer 2004-05, Avalanche 1500 2004 + 17 more models)

Manufacturer

Part Number

21812735
Sale Price

$274.10

Out of Stock

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ACDelco 21812735 Engine Control Module (ECM) is a GM Original Equipment component designed to regulate and monitor critical engine functions. This electronic control unit serves as the central computer for your vehicle's powertrain, processing inputs from various sensors throughout the engine system and making real-time adjustments to optimize performance, fuel efficiency, and emissions.

Key Functions:

  • Processes data from oxygen sensors, throttle position sensors, mass airflow sensors, and other engine monitoring systems
  • Controls fuel injection timing and duration for optimal combustion
  • Manages ignition timing to maximize engine efficiency and power delivery
  • Regulates idle speed and air-fuel mixture ratios
  • Monitors emissions systems and stores diagnostic trouble codes
  • Communicates with other vehicle control modules via the CAN bus network

Features:

  • GM Original Equipment quality and specifications
  • Precision-engineered electronics for reliable operation
  • Pre-programmed with factory calibrations
  • Direct replacement for your vehicle's original ECM
  • Meets or exceeds OEM performance standards

ACDelco engine control modules are manufactured to GM's exacting standards, ensuring proper integration with your vehicle's electrical and engine management systems. This ECM provides the same performance, durability, and service life expected from genuine General Motors components. Professional installation and programming may be required for proper operation.

Products specifications

Fits

Chevrolet Silverado 1500 2004, Suburban 1500 2004, Silverado 2500 HD 2004, Tahoe 2004, Trailblazer 2004-05, Avalanche 1500 2004, Silverado 2500 2004, Silverado 3500 2004, Suburban 2500 2004, SSR 2004; GMC Yukon XL 1500 2004 + 12 more models

Fast and easy checkout.

I placed an order on Monday & received product on Saturday. I am very pleased with the turn around time & the price. They had the best price on the internet that I found and they were helpful to work with.

Quick and easy so far

So far so good

Best price on FX400, smooth easy website.

Great Price and questions were answered by a real person on the phone, who had specific knowledge of this product, unlike a local dealer! Thanks!

Low price, quick shipping & confirmation of order.<br>

I have not received my order because it is still the same day I ordered therefore i can not comment on shipping. However I do not worry about that process at all due to the professional look autoplicity.com shows through their website. The prices are the website are the lowest I've found and in-stock quantity is great allow me to find every I needed.

Autoplicity had the best price around. Great selection of parts at a great price. I recommend buying from them!

Great price!

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