1981 GMC C2500 Voltage Regulator Parts

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Keep Your 1981 GMC C2500 in Top Shape with Quality Voltage Regulator Parts

Whether you’re repairing or upgrading your Voltage Regulator Part, using high-quality parts is key to keeping your 1981 GMC C2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Voltage Regulator Connectors and Voltage Regulators. 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 1981 GMC C2500 Voltage Regulator Part at Advance Auto Parts is around $21.65, with a range that starts at $4.49 and goes up to $35.99. With 5 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Carquest Multi-Use Connector, PTA1031, Carquest New Voltage Regulator, RAA1056, and Dorman Four-Wire Voltage Regulator Module, 85118 start at just $4.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Voltage Regulator Part, don’t forget to check out other key components like Alternator Parts and Starter Parts. At Advance Auto Parts, we’re here to help you keep your 1981 GMC C2500 in peak condition, inside and out.

Essential 1981 GMC C2500 Voltage Regulator Parts

Carquest Premium – Carquest Multi-Use Connector, PTA1165 (Part No.PTA1165)

Carquest Multi-Use Connector, PTA1165

from

$30.99
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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Dorman – Dorman Four-Wire Voltage Regulator Module, 85118 (Part No.85118)

Dorman Four-Wire Voltage Regulator Module, 85118

from

$11.79
This voltage regulator connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
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Carquest Premium – Carquest Multi-Use Connector, PTA1127 (Part No.PTA1127)

Carquest Multi-Use Connector, PTA1127

from

$21.99
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.
See More

Carquest Premium – Carquest Multi-Use Connector, PTA1031 (Part No.PTA1031)

Carquest Multi-Use Connector, PTA1031

from

$4.49
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.
See More

Carquest Premium – Carquest New Voltage Regulator, RAA3137 (Part No.RAA3137)

Carquest New Voltage Regulator, RAA3137

from

$48.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.
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Carquest Premium – Carquest New Voltage Regulator, RAA1056 (Part No.RAA1056)

Carquest New Voltage Regulator, RAA1056

from

$35.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.
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Carquest Premium – Carquest Voltage Regulator, RAA2784 (Part No.RAA2784)

Carquest Voltage Regulator, RAA2784

from

$24.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.
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Most Popular Voltage Regulator Connectors for 1981 GMC C2500s

Enhance your 1981 GMC C2500 with one of the 3 Voltage Regulator Connectors we have in stock, starting at just $4.49.

Carquest Premium – Carquest Multi-Use Connector, PTA1031 (Part No.PTA1031)

Carquest Multi-Use Connector, PTA1031

from

$4.49
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.
See More

Carquest Premium – Carquest Multi-Use Connector, PTA1165 (Part No.PTA1165)

Carquest Multi-Use Connector, PTA1165

from

$30.99
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.
See More

Dorman – Dorman Four-Wire Voltage Regulator Module, 85118 (Part No.85118)

Dorman Four-Wire Voltage Regulator Module, 85118

from

$11.79
This voltage regulator connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
See More

Best-Selling 1981 GMC C2500 Voltage Regulators

Upgrade your C2500 with one of our 2 best-selling Voltage Regulators.

Carquest Premium – Carquest New Voltage Regulator, RAA1056 (Part No.RAA1056)

Carquest New Voltage Regulator, RAA1056

from

$35.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.
See More

Carquest Premium – Carquest Voltage Regulator, RAA2784 (Part No.RAA2784)

Carquest Voltage Regulator, RAA2784

from

$24.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.
See More

FAQs for 1981 GMC C2500 Voltage Regulator Parts

What are the best-selling Voltage Regulator Parts for 1981 GMC C2500s?

Out of 5 Voltage Regulator Parts that fit 1981 GMC C2500s, the following parts are the top sellers:

What’s the price range for 1981 GMC C2500 Voltage Regulator Parts?

The prices of Voltage Regulator Parts for the 1981 GMC C2500 range from $4.49 up to $35.99 for the most premium parts.

What is the average price of a Voltage Regulator Part for a 1981 GMC C2500?

The average price for Voltage Regulator Parts for the 1981 GMC C2500 is $21.65. Keep in mind the variety of part types within our Voltage Regulator Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Voltage Regulator Parts for other GMC C2500 model years?

Yes, we carry Voltage Regulator Parts for 19 model years of GMC C2500s between 1979 and 2000. The following model years are the most popular for Voltage Regulator Part purchases: 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, and 1992.

What are the cheapest Voltage Regulator Parts for my 1981 GMC C2500?

The cheapest 1981 GMC C2500 Voltage Regulator Parts we carry are:

Does Advance Auto Parts sell Voltage Regulator Parts for any other 1981 GMC models?

Yes. We stock Voltage Regulator Parts for 15 other popular 1981 GMC models. Some of the most popular are 1981 Jimmy Voltage Regulator Parts, 1981 K2500 Voltage Regulator Parts, 1981 K1500 Voltage Regulator Parts, 1981 C1500 Voltage Regulator Parts, and 1981 K3500 Voltage Regulator Parts.

What types of Voltage Regulator Parts do you sell for my 1981 GMC C2500?

As of 8/2/26, these are some of the most in-demand types of Voltage Regulator Parts for a 1981 GMC C2500:

Can I get help with 1981 GMC C2500 Voltage Regulator Part orders?

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

What is your return policy for GMC C2500 Voltage Regulator Parts?

Advance Auto Parts keeps returns simple. For new GMC C2500 Voltage Regulator Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.