2003 GMC Sierra 1500 HD Engine Control Modules (ECM)
Keep Your 2003 GMC Sierra 1500 HD in Top Shape with Quality Engine Control Modules (ECM)
Whether you’re repairing or upgrading your Engine Control Modules (ECM), using high-quality parts is key to keeping your 2003 GMC Sierra 1500 HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Powertrain Control Module Connectors and Body Control Computers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 2003 GMC Sierra 1500 HD Engine Control Modules (ECM) at Advance Auto Parts is around $179.99, with a range that starts at $30.99 and goes up to $328.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Remanufactured Body Control Module and 2-Way Female Black Multi-Purpose Pigtail start at just $30.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Engine Control Modules (ECM), don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 2003 GMC Sierra 1500 HD in peak condition, inside and out.
Find Your Specific 2003 GMC Sierra 1500 HD Engine Control Modules (ECM)s
Looking for the perfect Engine Control Modules (ECM) for your 2003 GMC Sierra 1500 HD? You’re in the right place. Below, you’ll find links to various types of Engine Control Modules (ECM) that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Control Modules (ECM)s, ensuring durability and a precise fit for your GMC Sierra 1500 HD. Whether you’re driving a 2003 model or another popular model year like
2001,
2002,
2005,
2006, and
2007, we’ve got you covered. Purchasing Engine Control Modules (ECM)s from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Control Modules (ECM)s that fit your vehicle.
Essential 2003 GMC Sierra 1500 HD Engine Control Modules (ECM)
Dorman – Remanufactured Body Control Module (Part No.502-007)
from
$328.99
This remanufactured body control module (BCM) is thoroughly tested and refurbished as required to restore various accessory functions and prevent damage to related components.
Product Features:
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Product Features:
- Thoroughly remanufactured – this body control module has been rebuilt in a dedicated electronics manufacturing facility in North America
- Durable construction – this control module has been thoroughly refurbished for reliable performance
- Cost-effective solution – offers original equipment quality at a better price than a new part
- Quality tested – this module has been individually tested to confirm function and performance
GM Genuine Parts – 2-Way Female Black Multi-Purpose Pigtail (Part No.PT118)
from
$30.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
Product Features:
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Product Features:
- Protective outer coverings help provide long-lasting durability
- Color-coded wires allow for easy installation
- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
Popular 2003 GMC Sierra 1500 HD Engine Control Modules (ECM) Categories
Most Popular Powertrain Control Module Connector for 2003 GMC Sierra 1500 HDs
Enhance your 2003 GMC Sierra 1500 HD with this popular Powertrain Control Module Connector we have in stock, for $30.99.
GM Genuine Parts – 2-Way Female Black Multi-Purpose Pigtail (Part No.PT118)
from
$30.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
Product Features:
See More
Product Features:
- Protective outer coverings help provide long-lasting durability
- Color-coded wires allow for easy installation
- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
Best-Selling 2003 GMC Sierra 1500 HD Body Control Computer
Upgrade your Sierra 1500 HD with our best-selling Body Control Computer.
Dorman – Remanufactured Body Control Module (Part No.502-007)
from
$328.99
This remanufactured body control module (BCM) is thoroughly tested and refurbished as required to restore various accessory functions and prevent damage to related components.
Product Features:
See More
Product Features:
- Thoroughly remanufactured – this body control module has been rebuilt in a dedicated electronics manufacturing facility in North America
- Durable construction – this control module has been thoroughly refurbished for reliable performance
- Cost-effective solution – offers original equipment quality at a better price than a new part
- Quality tested – this module has been individually tested to confirm function and performance
FAQs for 2003 GMC Sierra 1500 HD Engine Control Modules (ECM)s
What are the best-selling Engine Control Modules (ECM)s for 2003 GMC Sierra 1500 HDs?
Out of 2 Engine Control Modules (ECM)s that fit 2003 GMC Sierra 1500 HDs, the following parts are the top sellers:
- Remanufactured Body Control Module (10924956) – $328.99
- 2-Way Female Black Multi-Purpose Pigtail (11895046) – $30.99
What’s the price range for 2003 GMC Sierra 1500 HD Engine Control Modules (ECM)?
The prices of Engine Control Modules (ECM) for the 2003 GMC Sierra 1500 HD range from $30.99 up to $328.99 for the most premium parts.
What is the average price of an Engine Control Modules (ECM) for a 2003 GMC Sierra 1500 HD?
The average price for Engine Control Modules (ECM)s for the 2003 GMC Sierra 1500 HD is $179.99. Keep in mind the variety of part types within our Engine Control Modules (ECM) category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Engine Control Modules (ECM) for other GMC Sierra 1500 HD model years?
What are the cheapest Engine Control Modules (ECM) for my 2003 GMC Sierra 1500 HD?
The cheapest 2003 GMC Sierra 1500 HD Engine Control Modules (ECM) we carry are:
- 2-Way Female Black Multi-Purpose Pigtail (11895046) – $30.99
- Remanufactured Body Control Module (10924956) – $328.99
Does Advance Auto Parts sell Engine Control Modules (ECM) for any other 2003 GMC models?
Yes. We stock Engine Control Modules (ECM) for 11 other popular 2003 GMC models. Some of the most popular are 2003 Yukon Engine Control Modules (ECM), 2003 Sierra 1500 Engine Control Modules (ECM), 2003 Yukon XL 1500 Engine Control Modules (ECM), 2003 Sierra 2500 HD Engine Control Modules (ECM), and 2003 Yukon XL 2500 Engine Control Modules (ECM).
What types of Engine Control Modules (ECM) do you sell for my 2003 GMC Sierra 1500 HD?
As of 11/2/25, these are some of the most in-demand types of Engine Control Modules (ECM) for a 2003 GMC Sierra 1500 HD:
Can I get help with 2003 GMC Sierra 1500 HD Engine Control Modules (ECM) orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Engine Control Modules (ECM) and more.
What is your return policy for GMC Sierra 1500 HD Engine Control Modules (ECM)?
Advance Auto Parts keeps returns simple. For new GMC Sierra 1500 HD Engine Control Modules (ECM) and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.