1999 GMC K3500 Engine Control Modules (ECM)

Keep Your 1999 GMC K3500 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 1999 GMC K3500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Engine Computers and Powertrain Control Module Connectors. 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 1999 GMC K3500 Engine Control Modules (ECM) at Advance Auto Parts is around $90.19, with a range that starts at $30.99 and goes up to $178.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like 2-Way Female Black Multi-Purpose Pigtail and Remanufactured Vehicle Control Module 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 1999 GMC K3500 in peak condition, inside and out.

Essential 1999 GMC K3500 Engine Control Modules (ECM)

GM Genuine Parts – 2-Way Female Black Multi-Purpose Pigtail (Part No.PT118)

2-Way Female Black Multi-Purpose Pigtail

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:
  • 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
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-6465)

Remanufactured Engine Control Computer

from

$227.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-6395)

Remanufactured Engine Control Computer

from

$208.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-6455)

Remanufactured Engine Control Computer

from

$111.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-7747)

Remanufactured Engine Control Computer

from

$199.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-8747)

Remanufactured Engine Control Computer

from

$162.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-8812)

Remanufactured Engine Control Computer

from

$110.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-1199)

Remanufactured Engine Control Computer

from

$135.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Vehicle Control Module (Part No.77-3494F)

Remanufactured Vehicle Control Module

from

$178.99
CARDONE Remanufactured Vehicle Control Modules are engineered for quick installation and no comebacks. Each unit is engineered to meet or exceed O.E.M performance. All modules are 100 percent computerized tested and resolder of critical components, as well as 100 percent replacement of common ware components, ensuring superior electrical connections.

Product Features:
  • All modules are 100 percent tested with automated computerized test equipment to ensure functionality and reliable.
  • 100 percent resolder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
  • On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
  • Guaranteed fit and function.
  • Meets or exceeds O.E.M performance.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-6021)

Remanufactured Engine Control Computer

from

$125.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-6865)

Remanufactured Engine Control Computer

from

$183.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Cardone – Remanufactured Engine Control Computer (Part No.77-6299)

Remanufactured Engine Control Computer

from

$174.99
CARDONE Remanufactured Electronic and Powertrain Control Modules are designed to meet or exceed O.E. performance. Reverse engineering provides insight into how and why the unit originally failed, allowing our engineers to identify and correct original design weaknesses. All critical components are re-soldered or replaced at our Philadelphia manufacturing plant, and each unit is 100 percent computer tested to ensure reliability. CARDONE is committed to getting your vehicle back to peak performance.

Product Features:
  • Tested with automated computer equipment or bench-tested, depending on application, to ensure functionality.
  • Re-soldering of critical components ensures superior electrical connections. This prevents intermittent failures and leads to longer product life.
  • On-car vehicle validation is done to test durability and performance.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.
See More

Most Popular Engine Computer for 1999 GMC K3500s

Enhance your 1999 GMC K3500 with this popular Engine Computer we have in stock, for $178.99.

Cardone – Remanufactured Vehicle Control Module (Part No.77-3494F)

Remanufactured Vehicle Control Module

from

$178.99
CARDONE Remanufactured Vehicle Control Modules are engineered for quick installation and no comebacks. Each unit is engineered to meet or exceed O.E.M performance. All modules are 100 percent computerized tested and resolder of critical components, as well as 100 percent replacement of common ware components, ensuring superior electrical connections.

Product Features:
  • All modules are 100 percent tested with automated computerized test equipment to ensure functionality and reliable.
  • 100 percent resolder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
  • On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
  • Guaranteed fit and function.
  • Meets or exceeds O.E.M performance.
See More

Best-Selling 1999 GMC K3500 Powertrain Control Module Connector

Upgrade your K3500 with our best-selling Powertrain Control Module Connector.

GM Genuine Parts – 2-Way Female Black Multi-Purpose Pigtail (Part No.PT118)

2-Way Female Black Multi-Purpose Pigtail

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:
  • 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
See More

FAQs for 1999 GMC K3500 Engine Control Modules (ECM)s

What are the best-selling Engine Control Modules (ECM)s for 1999 GMC K3500s?

Out of 2 Engine Control Modules (ECM)s that fit 1999 GMC K3500s, the following parts are the top sellers:

What’s the price range for 1999 GMC K3500 Engine Control Modules (ECM)?

The prices of Engine Control Modules (ECM) for the 1999 GMC K3500 range from $30.99 up to $178.99 for the most premium parts.

What is the average price of an Engine Control Modules (ECM) for a 1999 GMC K3500?

The average price for Engine Control Modules (ECM)s for the 1999 GMC K3500 is $90.19. 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 K3500 model years?

Yes, we carry Engine Control Modules (ECM) for 14 model years of GMC K3500s between 1983 and 1998. The following model years are the most popular for Engine Control Modules (ECM) purchases: 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, and 1986.

What are the cheapest Engine Control Modules (ECM) for my 1999 GMC K3500?

The cheapest 1999 GMC K3500 Engine Control Modules (ECM) we carry are:

Does Advance Auto Parts sell Engine Control Modules (ECM) for any other 1999 GMC models?

What types of Engine Control Modules (ECM) do you sell for my 1999 GMC K3500?

As of 11/2/25, these are some of the most in-demand types of Engine Control Modules (ECM) for a 1999 GMC K3500:

Can I get help with 1999 GMC K3500 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 K3500 Engine Control Modules (ECM)?

Advance Auto Parts keeps returns simple. For new GMC K3500 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.