1984 Ford LTD Engine Control Modules (ECM)

Keep Your 1984 Ford LTD 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 1984 Ford LTD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Engine Computers and Engine Control Module Relays. 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 1984 Ford LTD Engine Control Modules (ECM) at Advance Auto Parts is around $111.86, with a range that starts at $30.99 and goes up to $201.99. With 13 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Multi-Purpose Relay, Remanufactured Engine Control Computer, and Remanufactured Engine Control Computer 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 1984 Ford LTD in peak condition, inside and out.

Looking for the perfect Engine Control Modules (ECM) for your 1984 Ford LTD? 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 Ford LTD. Whether you’re driving a 1984 model or another popular model year like 1982, 1983, 1985, 1986, 1987, 1988, 1989, 1990, and 1991, 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 1984 Ford LTD Engine Control Modules (ECM)

from

$30.99

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

from

$130.99

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.

from

$157.99

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.

from

$147.99

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.

from

$153.99

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.

from

$159.99

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.

from

$103.99

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.

from

$109.99

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.

from

$148.99

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.

from

$107.99

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.

from

$152.99

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.

from

$157.99

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.

from

$125.99

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.

from

$183.99

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.

from

$146.99

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.

from

$121.99

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.

from

$106.99

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.

from

$97.99

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.

from

$119.99

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.

from

$118.99

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.

from

$108.99

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.

from

$149.99

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.

from

$126.99

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.

from

$146.99

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.

from

$191.99

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.

from

$134.99

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.

from

$105.99

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.

from

$108.99

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.

Popular 1984 Ford LTD Engine Control Modules (ECM) Categories

Engine Computers

Engine Control Module Relays

Best-Selling 1984 Ford LTD Engine Control Module Relay

Upgrade your LTD with our best-selling Engine Control Module Relay.

show more show less

from

$30.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

FAQs for 1984 Ford LTD Engine Control Modules (ECM)s

What are the best-selling Engine Control Modules (ECM)s for 1984 Ford LTDs?

Out of 13 Engine Control Modules (ECM)s that fit 1984 Ford LTDs, the following parts are the top sellers:

Multi-Purpose Relay (12459476) – $30.99
Remanufactured Engine Control Computer (5704561) – $201.99
Remanufactured Engine Control Computer (5704596) – $149.99

What’s the price range for 1984 Ford LTD Engine Control Modules (ECM)?

The prices of Engine Control Modules (ECM) for the 1984 Ford LTD range from $30.99 up to $201.99 for the most premium parts.

What is the average price of an Engine Control Modules (ECM) for a 1984 Ford LTD?

The average price for Engine Control Modules (ECM)s for the 1984 Ford LTD is $111.86. 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 Ford LTD model years?

Yes, we carry Engine Control Modules (ECM) for 11 model years of Ford LTDs between 1979 and 1991. The following model years are the most popular for Engine Control Modules (ECM) purchases: 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1983, and 1982.

What are the cheapest Engine Control Modules (ECM) for my 1984 Ford LTD?

The cheapest 1984 Ford LTD Engine Control Modules (ECM) we carry are:

Multi-Purpose Relay (12459476) – $30.99
Remanufactured Engine Control Computer (3802892) – $107.99
Remanufactured Engine Control Computer (3801888) – $108.99
Remanufactured Engine Control Computer (3803228) – $121.99
Remanufactured Engine Control Computer (3801470) – $134.99

Does Advance Auto Parts sell Engine Control Modules (ECM) for any other 1984 Ford models?

Yes. We stock Engine Control Modules (ECM) for 13 other popular 1984 Ford models. Some of the most popular are 1984 F-150 Engine Control Modules (ECM), 1984 Mustang Engine Control Modules (ECM), 1984 E-250 Econoline Engine Control Modules (ECM), 1984 E-350 Econoline Engine Control Modules (ECM), and 1984 E-150 Econoline Engine Control Modules (ECM).

What are the top-rated Engine Control Modules (ECM) that fit the 1984 Ford LTD?

The one 1984 Ford LTD Engine Control Modules (ECM) we have in stock is the Multi-Purpose Relay. It costs $30.99.

What types of Engine Control Modules (ECM) do you sell for my 1984 Ford LTD?

As of 11/2/25, these are some of the most in-demand types of Engine Control Modules (ECM) for a 1984 Ford LTD:

Can I get help with 1984 Ford LTD 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 Ford Engine Control Modules (ECM) and more.

What is your return policy for Ford LTD Engine Control Modules (ECM)?

Advance Auto Parts keeps returns simple. For new Ford LTD 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.

1984 Ford LTD Engine Control Modules (ECM)

Carquest Premium – Multi-Purpose Relay (Part No.RAA1743)

Cardone – Remanufactured Engine Control Computer (Part No.78-4821)

Cardone – Remanufactured Engine Control Computer (Part No.78-4281)

Cardone – Remanufactured Engine Control Computer (Part No.78-4617)

Cardone – Remanufactured Engine Control Computer (Part No.78-4227)

Cardone – Remanufactured Engine Control Computer (Part No.78-4224)

Cardone – Remanufactured Engine Control Computer (Part No.78-4252)

Cardone – Remanufactured Engine Control Computer (Part No.78-4396)

Cardone – Remanufactured Engine Control Computer (Part No.78-4315)

Cardone – Engine Control Module (Part No.78-3110)

Cardone – Remanufactured Engine Control Computer (Part No.78-4377)

Cardone – Remanufactured Engine Control Computer (Part No.78-4253)

Cardone – Remanufactured Engine Control Computer (Part No.78-4500)

Cardone – Remanufactured Engine Control Computer (Part No.78-4822)

Cardone – Remanufactured Engine Control Computer (Part No.78-4615)

Cardone – Remanufactured Engine Control Computer (Part No.78-4494)

Cardone – Remanufactured Engine Control Computer (Part No.78-4306)

Cardone – Remanufactured Engine Control Computer (Part No.78-4326)

Cardone – Remanufactured Engine Control Computer (Part No.78-4804)

Cardone – Remanufactured Engine Control Computer (Part No.78-4340)

Cardone – Remanufactured Engine Control Computer (Part No.78-4300)

Cardone – Remanufactured Engine Control Computer (Part No.78-4211)

Cardone – Remanufactured Engine Control Computer (Part No.78-5621)

Cardone – Remanufactured Engine Control Computer (Part No.78-5624)

Cardone – Remanufactured Engine Control Computer (Part No.78-5033)

Cardone – Remanufactured Engine Control Computer (Part No.78-4240)

Cardone – Remanufactured Engine Control Computer (Part No.78-4305)

Cardone – Remanufactured Engine Control Computer (Part No.78-4496)

Cardone – Remanufactured Engine Control Computer (Part No.78-4584)

Cardone – Remanufactured Engine Control Computer (Part No.78-4203)

Cardone – Remanufactured Engine Control Computer (Part No.78-4281)

Cardone – Remanufactured Engine Control Computer (Part No.78-4227)

Cardone – Remanufactured Engine Control Computer (Part No.78-4377)

Cardone – Remanufactured Engine Control Computer (Part No.78-4205)

Cardone – Remanufactured Engine Control Computer (Part No.78-4211)

Cardone – Remanufactured Engine Control Computer (Part No.78-4495)

Cardone – Remanufactured Engine Control Computer (Part No.78-4240)

Cardone – Remanufactured Engine Control Computer (Part No.78-4494)

Cardone – Remanufactured Engine Control Computer (Part No.78-4300)

Cardone – Remanufactured Engine Control Computer (Part No.78-4319)

Carquest Premium – Multi-Purpose Relay (Part No.RAA1743)