1981 GMC C5000 Alternator Parts

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Keep Your 1981 GMC C5000 in Top Shape with Quality Alternator Parts

Whether you’re repairing or upgrading your Alternator Part, using high-quality parts is key to keeping your 1981 GMC C5000 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Alternator Diodes, Alternator and Generator Brush Parts, and Alternators. 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.

Explore Related Parts

While you’re upgrading or replacing your Alternator Part, don’t forget to check out other key components like Ignition Lock Parts and Starter Parts. At Advance Auto Parts, we’re here to help you keep your 1981 GMC C5000 in peak condition, inside and out.

Essential 1981 GMC C5000 Alternator Parts

Carquest Premium – Carquest Alternator Diode Trio, SCA1002 (Part No.SCA1002)

Carquest Alternator Diode Trio, SCA1002

from

$6.99
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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Carquest Premium – Carquest Alternator Brush Set, XAA1042 (Part No.XAA1042)

Carquest Alternator Brush Set, XAA1042

from

$10.49
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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Carquest Premium – Carquest Alternator Brush Set, XAC1066 (Part No.XAC1066)

Carquest Alternator Brush Set, XAC1066

from

$12.99
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

Carquest HD Electrical – Carquest Alternator: New, 63 Amps, With Pulley, 71-7127-3N (Part No.71-7127-3N)

Carquest Alternator: New, 63 Amps, With Pulley, 71-7127-3N

from

$119.99
Carquest Starters with 100% NEW construction will restore hard working vehicles to exceed OE specified performance & endurance. All new units and components offer unmatched performance, reduce downtime & customer comebacks. Carquest HD alternators are primed to keep you moving forward. Built to perform in severe duty environments where consistent efficient high outputs are required.
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Bosch – Bosch Alternator: New, 94 Amps, AL559N (Part No.AL559N)

Bosch Alternator: New, 94 Amps, AL559N

from

$206.99
Bosch Premium Alternators deliver unmatched performance and reliability, making them a top choice for demanding driving conditions. Engineered with 100% new components, these alternators are built to endure the harshest environments, ensuring optimal performance and an extended lifespan. Designed to handle excessive heat and high electrical demands, they provide consistent power output with a 94-amp rating and 12 VDC voltage. Precision-crafted mounting points are gauged, resized, or rethreaded for a perfect fit, ensuring seamless installation. With a clockwise rotation direction, this alternator is tailored for compatibility with specific vehicle systems. As an added benefit, every purchase includes free 24-hour Roadside Assistance Protection, offering peace of mind on the road. Choose Bosch for a durable, high-performance solution that keeps your vehicle running smoothly.
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Carquest HD Electrical – Carquest Alternator: New, 63 Amps, 71-7127-12N (Part No.71-7127-12N)

Carquest Alternator: New, 63 Amps, 71-7127-12N

from

$167.99
Carquest Starters with 100% NEW construction will restore hard working vehicles to exceed OE specified performance & endurance. All new units and components offer unmatched performance, reduce downtime & customer comebacks. Carquest HD alternators are primed to keep you moving forward. Built to perform in severe duty environments where consistent efficient high outputs are required.
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Bosch – Bosch Alternator: New, 62 Amps, AL530N (Part No.AL530N)

Bosch Alternator: New, 62 Amps, AL530N

from

$144.99
The Bosch Premium Alternator, delivering 62 amps at 12 VDC, is engineered for exceptional performance and reliability in even the harshest conditions. Featuring 100% new components, it is built to endure excessive heat and high electrical demands, ensuring a long service life. Its precise construction includes 100% gauged, resized, or rethreaded mounting points for a perfect fit, making installation seamless. Designed with a clockwise rotation direction, this alternator is a dependable choice for maintaining your vehicle’s electrical system. As an added benefit, every purchase includes free 24-hour Roadside Assistance Protection, offering peace of mind on the road. Choose Bosch for unmatched durability and value.
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Bosch – Bosch Alternator: Remanufactured, 63 Amps, AL531X (Part No.AL531X)

Bosch Alternator: Remanufactured, 63 Amps, AL531X

from

$101.99
The Bosch Premium Alternator, delivering 63 amps at 12 VDC, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, guaranteeing long-lasting durability. Designed with a clockwise rotation direction, it is built to seamlessly integrate into your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for better performance, this Bosch alternator offers unmatched value and peace of mind.
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Carquest HD Electrical – Carquest Alternator – 12SI IR/EF 94 Amp/12 Volt, CW, 1-Groove Pulley, 71-7294-9N (Part No.71-7294-9N)

Carquest Alternator - 12SI IR/EF 94 Amp/12 Volt, CW, 1-Groove Pulley, 71-7294-9N

from

$274.99
Carquest Starters with 100% NEW construction will restore hard working vehicles to exceed OE specified performance & endurance. All new units and components offer unmatched performance, reduce downtime & customer comebacks. Carquest HD alternators are primed to keep you moving forward. Built to perform in severe duty environments where consistent efficient high outputs are required.
See More

Bosch – Bosch Alternator: New, 78 Amps, AL547N (Part No.AL547N)

Bosch Alternator: New, 78 Amps, AL547N

from

$203.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for demanding driving conditions. Engineered with 100% new components, it is built to endure the harshest environments, ensuring optimal functionality and an extended lifespan. Designed to handle excessive heat and high electrical demands, this alternator is perfect for modern vehicles with advanced electrical systems. With a robust 78-amp output and 12 VDC voltage, it provides consistent power to keep your vehicle running smoothly. Precision-crafted mounting points are gauged, resized, or rethreaded for a perfect fit, ensuring hassle-free installation. Additionally, the purchase includes free 24-hour Roadside Assistance Protection, adding extra value and peace of mind. For drivers seeking durability, reliability, and superior performance, this alternator is an excellent investment.
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Carquest HD Electrical – Carquest Alternator: New, 63 Amps, With Pulley, 71-7127-SEN (Part No.71-7127-SEN)

Carquest Alternator: New, 63 Amps, With Pulley, 71-7127-SEN

from

$351.99
Carquest Starters with 100% NEW construction will restore hard working vehicles to exceed OE specified performance & endurance. All new units and components offer unmatched performance, reduce downtime & customer comebacks. Carquest HD alternators are primed to keep you moving forward. Built to perform in severe duty environments where consistent efficient high outputs are required.
See More

Most Popular Alternator Diode for 1981 GMC C5000s

Enhance your 1981 GMC C5000 with this popular Alternator Diode we have in stock, for $6.99.

Carquest Premium – Carquest Alternator Diode Trio, SCA1002 (Part No.SCA1002)

Carquest Alternator Diode Trio, SCA1002

from

$6.99
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

Best-Selling 1981 GMC C5000 Alternator and Generator Brush Part

Upgrade your C5000 with our best-selling Alternator and Generator Brush Part.

Carquest Premium – Carquest Alternator Brush Set, XAA1042 (Part No.XAA1042)

Carquest Alternator Brush Set, XAA1042

from

$10.49
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

Top-Quality Alternators for 1981 GMC C5000s

Choose a high-quality OEM or aftermarket Alternator for GMC C5000s and enjoy top-notch performance from $101.99.

Bosch – Bosch Alternator: Remanufactured, 63 Amps, AL531X (Part No.AL531X)

Bosch Alternator: Remanufactured, 63 Amps, AL531X

from

$101.99
The Bosch Premium Alternator, delivering 63 amps at 12 VDC, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, guaranteeing long-lasting durability. Designed with a clockwise rotation direction, it is built to seamlessly integrate into your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for better performance, this Bosch alternator offers unmatched value and peace of mind.
See More

FAQs for 1981 GMC C5000 Alternator Parts

What are the best-selling Alternator Parts for 1981 GMC C5000s?

Out of 3 Alternator Parts that fit 1981 GMC C5000s, the following parts are the top sellers:

What’s the price range for 1981 GMC C5000 Alternator Parts?

The prices of Alternator Parts for the 1981 GMC C5000 range from $6.99 up to $101.99 for the most premium parts.

What is the average price of an Alternator Part for a 1981 GMC C5000?

The average price for Alternator Parts for the 1981 GMC C5000 is $39.82. Keep in mind the variety of part types within our Alternator 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 Alternator Parts for other GMC C5000 model years?

Yes, we carry Alternator Parts for 10 model years of GMC C5000s between 1979 and 1990. The following model years are the most popular for Alternator Part purchases: 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, and 1982.

What are the cheapest Alternator Parts for my 1981 GMC C5000?

The cheapest 1981 GMC C5000 Alternator Parts we carry are:

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

Yes. We stock Alternator Parts for 18 other popular 1981 GMC models. Some of the most popular are 1981 Jimmy Alternator Parts, 1981 K2500 Alternator Parts, 1981 C2500 Alternator Parts, 1981 K1500 Alternator Parts, and 1981 C1500 Alternator Parts.

What types of Alternator Parts do you sell for my 1981 GMC C5000?

As of 8/2/26, these are some of the most in-demand types of Alternator Parts for a 1981 GMC C5000:

Can I get help with 1981 GMC C5000 Alternator Part orders?

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

What is your return policy for GMC C5000 Alternator Parts?

Advance Auto Parts keeps returns simple. For new GMC C5000 Alternator Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.