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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Chevrolet

5.3L Engine Control Module (ECM)

$407.04 $168.99 Save $238.05

SKU: 12603892

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The GM Performance engine computer, also known as an ECM, ECU, or PCM, is a guaranteed replacement for 2007 Chevrolet Tahoe models with a 5.3L engine and part number 12605731, belonging to hardware code 12603892. This unit comes programmed to your vehicle's VIN and updated with the latest software for enhanced fuel economy and performance.
Show original supplier description
The GM Performance engine computer, identified by part number 12603892 (and 12605731), serves as a guaranteed replacement for all 2007 Chevrolet Tahoe PCM models equipped with a 5.3L engine. This Engine Control Module (ECM) comes pre-programmed to your vehicle's specific VIN, ensuring seamless communication between internal modules. Each unit undergoes rigorous off-board testing by experienced in-house mechanics to guarantee peak performance before it ships. Installation is straightforward, allowing for a simple key cycling procedure after installation to sync with your original keys, eliminating the need for a locksmith. This means you can replace your module in your own driveway, avoiding dealership costs and towing fees. The unit is ready for plug-and-play installation, requiring no additional programming. FS1 Inc. emphasizes quality control, with each unit being individually inspected, fully refurbished, and tested in-house by certified technicians. This process ensures that units are superior in quality and address common issues such as electrical problems, failure to start, fault codes, intermittent issues, loss of power, no ignition or injector pulse, poor fuel economy, and shifting problems.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandChevrolet
Part Number12603892
CategoryIgnitions and Electrical
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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