1991 GMC Sonoma Emission Controls

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Keep Your 1991 GMC Sonoma in Top Shape with Quality Emission Controls

Whether you’re repairing or upgrading your Emission Control, using high-quality parts is key to keeping your 1991 GMC Sonoma looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Emission Control Relays and Emissions Wiring Harness Connector. 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 1991 GMC Sonoma Emission Control at Advance Auto Parts is around $37.14, with a range that starts at $14.29 and goes up to $59.99. With 2 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Carquest Multi-Purpose Relay, RAC1268 and Carquest Repair Harness, PTA1807 start at just $14.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Emission Control, don’t forget to check out other key components like Gas Caps and Oxygen Sensors. At Advance Auto Parts, we’re here to help you keep your 1991 GMC Sonoma in peak condition, inside and out.

Essential 1991 GMC Sonoma Emission Controls

ACDelco – ACDelco Multi-Purpose Pigtail, PT1357 (Part No.PT1357)

ACDelco Multi-Purpose Pigtail, PT1357

from

$39.99
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.
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Carquest Premium – Carquest Repair Harness, PTA1807 (Part No.PTA1807)

Carquest Repair Harness, PTA1807

from

$59.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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Carquest Premium – Carquest Multi-Purpose Relay, RAC1268 (Part No.RAC1268)

Carquest Multi-Purpose Relay, RAC1268

from

$14.29
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.
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Most Popular Emission Control Relay for 1991 GMC Sonomas

Enhance your 1991 GMC Sonoma with this popular Emission Control Relay we have in stock, for $14.29.

Carquest Premium – Carquest Multi-Purpose Relay, RAC1268 (Part No.RAC1268)

Carquest Multi-Purpose Relay, RAC1268

from

$14.29
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.
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Best-Selling 1991 GMC Sonoma Emissions Wiring Harness Connector

Upgrade your Sonoma with our best-selling Emissions Wiring Harness Connector.

Carquest Premium – Carquest Repair Harness, PTA1807 (Part No.PTA1807)

Carquest Repair Harness, PTA1807

from

$59.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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FAQs for 1991 GMC Sonoma Emission Controls

What are the best-selling Emission Controls for 1991 GMC Sonomas?

Out of 2 Emission Controls that fit 1991 GMC Sonomas, the following parts are the top sellers:

What’s the price range for 1991 GMC Sonoma Emission Controls?

The prices of Emission Controls for the 1991 GMC Sonoma range from $14.29 up to $59.99 for the most premium parts.

What is the average price of an Emission Control for a 1991 GMC Sonoma?

The average price for Emission Controls for the 1991 GMC Sonoma is $37.14. Keep in mind the variety of part types within our Emission Control category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Emission Controls for other GMC Sonoma model years?

Yes, we carry Emission Controls for 9 model years of GMC Sonomas between 1992 and 2001. The following model years are the most popular for Emission Control purchases: 1993, 1994, 1998, 1997, 2000, 1995, 1996, 1992, and 2001.

What are the cheapest Emission Controls for my 1991 GMC Sonoma?

The cheapest 1991 GMC Sonoma Emission Controls we carry are:

Does Advance Auto Parts sell Emission Controls for any other 1991 GMC models?

Yes. We stock Emission Controls for 8 other popular 1991 GMC models. Some of the most popular are 1991 Jimmy Emission Controls, 1991 Safari Emission Controls, 1991 G3500 Emission Controls, 1991 G2500 Emission Controls, and 1991 G1500 Emission Controls.

What types of Emission Controls do you sell for my 1991 GMC Sonoma?

As of 8/2/26, these are some of the most in-demand types of Emission Controls for a 1991 GMC Sonoma:

Can I get help with 1991 GMC Sonoma Emission Control orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Emission Controls and more.

What is your return policy for GMC Sonoma Emission Controls?

Advance Auto Parts keeps returns simple. For new GMC Sonoma Emission Controls and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.