1978 GMC K35 Performance Alternators

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Keep Your 1978 GMC K35 in Top Shape with Quality Performance Alternators

Whether you’re repairing or upgrading your Performance Alternator, using high-quality parts is key to keeping your 1978 GMC K35 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance 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.

Competitive Prices and Extensive Inventory

The average price for a 1978 GMC K35 Performance Alternator at Advance Auto Parts is around $274.66, with a range that starts at $161.99 and goes up to $330.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Mr. Gasket Alternator: Remanufactured, 80 Amps, 5122 and Top Street Performance Alternator: 10SI Style 110 Amps with V-Belt Pulley, Black, ES1001BK start at just $161.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Alternator, don’t forget to check out other key components like Performance Fuel Systems and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1978 GMC K35 in peak condition, inside and out.

Essential 1978 GMC K35 Performance Alternators

Mr. Gasket – Mr. Gasket Alternator: Remanufactured, 80 Amps, 5122 (Part No.5122)

Mr. Gasket Alternator: Remanufactured, 80 Amps, 5122

from

$330.99
“The Mr. Gasket chrome alternator is a high-performance, remanufactured solution designed to exceed original equipment specifications, ensuring maximum dependability for your vehicle. With an 80-amp output and a sleek chrome-plated finish, this GM 10SI style alternator is both functional and visually appealing. It fits most 1973-1983 GM vehicles, making it a versatile replacement option. The alternator features a 6.6″” bolt spacing, an internal regulator for efficient voltage control, and a 1-groove V-belt pulley included for easy installation. Operating at 12 volts, it can be used as a direct OE replacement or as a 1-wire alternator, offering flexibility to suit your needs. Built for durability and reliability, this alternator is an excellent choice for restoring or upgrading your vehicle’s electrical system.”
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Top Street Performance – Top Street Performance Alternator: 10SI Style 110 Amps with V-Belt Pulley, Black, ES1001BK (Part No.ES1001BK)

Top Street Performance Alternator: 10SI Style 110 Amps with V-Belt Pulley, Black, ES1001BK

from

$161.99
TSP’s Alternators are a fantastic upgrade to any engine, whether it?s for looks or performance and reliability. They feature simple wiring and a huge amperage upgrade over stock, and they come in a stylish black finish.
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Most Popular Performance Alternators for 1978 GMC K35s

Enhance your 1978 GMC K35 with one of the 2 Performance Alternators we have in stock, starting at just $161.99.

Mr. Gasket – Mr. Gasket Alternator: Remanufactured, 80 Amps, 5122 (Part No.5122)

Mr. Gasket Alternator: Remanufactured, 80 Amps, 5122

from

$330.99
“The Mr. Gasket chrome alternator is a high-performance, remanufactured solution designed to exceed original equipment specifications, ensuring maximum dependability for your vehicle. With an 80-amp output and a sleek chrome-plated finish, this GM 10SI style alternator is both functional and visually appealing. It fits most 1973-1983 GM vehicles, making it a versatile replacement option. The alternator features a 6.6″” bolt spacing, an internal regulator for efficient voltage control, and a 1-groove V-belt pulley included for easy installation. Operating at 12 volts, it can be used as a direct OE replacement or as a 1-wire alternator, offering flexibility to suit your needs. Built for durability and reliability, this alternator is an excellent choice for restoring or upgrading your vehicle’s electrical system.”
See More

Top Street Performance – Top Street Performance Alternator: 10SI Style 110 Amps with V-Belt Pulley, Black, ES1001BK (Part No.ES1001BK)

Top Street Performance Alternator: 10SI Style 110 Amps with V-Belt Pulley, Black, ES1001BK

from

$161.99
TSP’s Alternators are a fantastic upgrade to any engine, whether it?s for looks or performance and reliability. They feature simple wiring and a huge amperage upgrade over stock, and they come in a stylish black finish.
See More

FAQs for 1978 GMC K35 Performance Alternators

What are the best-selling Performance Alternators for 1978 GMC K35s?

Out of 2 Performance Alternators that fit 1978 GMC K35s, the following parts are the top sellers:

What’s the price range for 1978 GMC K35 Performance Alternators?

The prices of Performance Alternators for the 1978 GMC K35 range from $161.99 up to $330.99 for the most premium parts.

What is the average price of a Performance Alternator for a 1978 GMC K35?

The average price for Performance Alternators for the 1978 GMC K35 is $274.66. Keep in mind the variety of part types within our Performance Alternator category, where you are likely to find a wide range of prices across a variety of parts and components.

What are the cheapest Performance Alternators for my 1978 GMC K35?

The cheapest 1978 GMC K35 Performance Alternators we carry are:

Does Advance Auto Parts sell Performance Alternators for any other 1978 GMC models?

Yes. We stock Performance Alternators for 9 other popular 1978 GMC models. Some of the most popular are 1978 G15 Performance Alternators, 1978 G25 Performance Alternators, 1978 C15 Performance Alternators, 1978 Caballero Performance Alternators, and 1978 G35 Performance Alternators.

What types of Performance Alternators do you sell for my 1978 GMC K35?

We currently have just 1 Performance Alternator in stock for a 1978 GMC K35, and as of 8/2/26, it is a Performance Alternator.

Can I get help with 1978 GMC K35 Performance Alternator orders?

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

What is your return policy for GMC K35 Performance Alternators?

Advance Auto Parts keeps returns simple. For new GMC K35 Performance Alternators and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.