1966 GMC 3500 Heating Parts

Keep Your 1966 GMC 3500 in Top Shape with Quality Heating Parts

Whether you’re repairing or upgrading your Heating Part, using high-quality parts is key to keeping your 1966 GMC 3500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Heater Cores. 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 1966 GMC 3500 Heating Part at Advance Auto Parts is around $71.49, with a range that starts at $60.99 and goes up to $81.99. With 2 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Heater Core start at just $81.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Heating Part, don’t forget to check out other key components like Blower Motor and Related Products and Engine Cooling Parts. At Advance Auto Parts, we’re here to help you keep your 1966 GMC 3500 in peak condition, inside and out.

Essential 1966 GMC 3500 Heating Parts

Carquest Premium – Heater Core (Part No.399056)

Heater Core

from

$81.99
Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications. Carquest Premium provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability. Carquest Premium offers certified heater cores that meet or exceed OE specifications and are all fitment checked in the actual vehicle’s HVAC heater module and are, thus, ready to be installed right out of the box for a “Drop-In Fit”. Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.

Product Features:
  • All heater cores are designed and tested to match or exceed OE specifications for form, fit and performance with a clear focus on obtaining the highest heat transfer performance possible through use of quality materials and manufacturing processes to ensu
  • Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
  • Provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability.
  • Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications.
  • Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
See More

Carquest Premium – Heater Core (Part No.394162)

Heater Core

from

$71.99
Reach heater cores use advanced engineering methods together with innovative manufacturing technology resulting in a product that meets or exceeds form, fit, and function.

Product Features:
  • Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
  • Designed to keep your A/C system in top shape and built to provide long-lasting service
  • Provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability.
  • Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications.
  • Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
See More

Carquest Premium – Heater Core (Part No.398224)

Heater Core

from

$60.99
Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications. Carquest Premium provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability. Carquest Premium offers certified heater cores that meet or exceed OE specifications and are all fitment checked in the actual vehicle’s HVAC heater module and are, thus, ready to be installed right out of the box for a “Drop-In Fit”. Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.

Product Features:
  • All heater cores are designed and tested to match or exceed OE specifications for form, fit and performance with a clear focus on obtaining the highest heat transfer performance possible through use of quality materials and manufacturing processes to ensu
  • Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
  • Provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability.
  • Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications.
  • Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
See More

Most Popular Heater Cores for 1966 GMC 3500s

Enhance your 1966 GMC 3500 with one of the 2 Heater Cores we have in stock, starting at just $60.99.

Carquest Premium – Heater Core (Part No.398224)

Heater Core

from

$60.99
Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications. Carquest Premium provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability. Carquest Premium offers certified heater cores that meet or exceed OE specifications and are all fitment checked in the actual vehicle’s HVAC heater module and are, thus, ready to be installed right out of the box for a “Drop-In Fit”. Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.

Product Features:
  • All heater cores are designed and tested to match or exceed OE specifications for form, fit and performance with a clear focus on obtaining the highest heat transfer performance possible through use of quality materials and manufacturing processes to ensu
  • Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
  • Provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability.
  • Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications.
  • Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
See More

Carquest Premium – Heater Core (Part No.399056)

Heater Core

from

$81.99
Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications. Carquest Premium provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability. Carquest Premium offers certified heater cores that meet or exceed OE specifications and are all fitment checked in the actual vehicle’s HVAC heater module and are, thus, ready to be installed right out of the box for a “Drop-In Fit”. Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.

Product Features:
  • All heater cores are designed and tested to match or exceed OE specifications for form, fit and performance with a clear focus on obtaining the highest heat transfer performance possible through use of quality materials and manufacturing processes to ensu
  • Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
  • Provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability.
  • Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications.
  • Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
See More

FAQs for 1966 GMC 3500 Heating Parts

What are the best-selling Heating Parts for 1966 GMC 3500s?

Out of 2 Heating Parts that fit 1966 GMC 3500s, the following parts are the top sellers:

What’s the price range for 1966 GMC 3500 Heating Parts?

The prices of Heating Parts for the 1966 GMC 3500 range from $60.99 up to $81.99 for the most premium parts.

What is the average price of a Heating Part for a 1966 GMC 3500?

The average price for Heating Parts for the 1966 GMC 3500 is $71.49. Keep in mind the variety of part types within our Heating 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 Heating Parts for other GMC 3500 model years?

Yes, we carry Heating Parts for 5 model years of GMC 3500s between 1960 and 1965. The following model years are the most popular for Heating Part purchases: 1965, 1964, 1961, 1962, 1963, and 1960.

What are the cheapest Heating Parts for my 1966 GMC 3500?

The cheapest 1966 GMC 3500 Heating Parts we carry are:

Does Advance Auto Parts sell Heating Parts for any other 1966 GMC models?

Yes. We stock Heating Parts for 11 other popular 1966 GMC models. Some of the most popular are 1966 K15/K1500 Pickup Heating Parts, 1966 Suburban Heating Parts, 1966 PB1000 Series Heating Parts, 1966 PB15 Series Heating Parts, and 1966 3000 Heating Parts.

What are the top-rated Heating Parts that fit the 1966 GMC 3500?

The one 1966 GMC 3500 Heating Part we have in stock is the Heater Core. It is rated 3 stars and costs $60.99.

What types of Heating Parts do you sell for my 1966 GMC 3500?

We currently have just 1 Heating Part in stock for a 1966 GMC 3500, and as of 11/2/25, it is a Heater Core.

Can I get help with 1966 GMC 3500 Heating Part orders?

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

What is your return policy for GMC 3500 Heating Parts?

Advance Auto Parts keeps returns simple. For new GMC 3500 Heating Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.