1966 Mercury S-55 Heating Parts

Keep Your 1966 Mercury S-55 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 Mercury S-55 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Heater Cores and Heater Valves. 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 Mercury S-55 Heating Part at Advance Auto Parts is around $47.74, with a range that starts at $31.49 and goes up to $63.99. With 2 options in stock from one trusted brand, finding the right fit is easy. Popular picks like HVAC Vacuum Open Non-Bypass Heater Valve and Heater Core start at just $31.49 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 Air Conditioning Parts and Engine Cooling Parts. At Advance Auto Parts, we’re here to help you keep your 1966 Mercury S-55 in peak condition, inside and out.

Essential 1966 Mercury S-55 Heating Parts

Carquest Premium – Heater Core (Part No.398009)

Heater Core

from

$63.99
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 – HVAC Vacuum Open Non-Bypass Heater Valve (Part No.T74604)

HVAC Vacuum Open Non-Bypass Heater Valve

from

$31.49
Carquest Heater Control Valves are application specific and tested to ensure proper fit and function to maintain your vehicle’s heater is functioning to OEM standards.
See More

Most Popular Heater Core for 1966 Mercury S-55s

Enhance your 1966 Mercury S-55 with this popular Heater Core we have in stock, for $63.99.

Carquest Premium – Heater Core (Part No.398009)

Heater Core

from

$63.99
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

Best-Selling 1966 Mercury S-55 Heater Valve

Upgrade your S-55 with our best-selling Heater Valve.

Carquest Premium – HVAC Vacuum Open Non-Bypass Heater Valve (Part No.T74604)

HVAC Vacuum Open Non-Bypass Heater Valve

from

$31.49
Carquest Heater Control Valves are application specific and tested to ensure proper fit and function to maintain your vehicle’s heater is functioning to OEM standards.
See More

FAQs for 1966 Mercury S-55 Heating Parts

What are the best-selling Heating Parts for 1966 Mercury S-55s?

Out of 2 Heating Parts that fit 1966 Mercury S-55s, the following parts are the top sellers:

What’s the price range for 1966 Mercury S-55 Heating Parts?

The prices of Heating Parts for the 1966 Mercury S-55 range from $31.49 up to $63.99 for the most premium parts.

What is the average price of a Heating Part for a 1966 Mercury S-55?

The average price for Heating Parts for the 1966 Mercury S-55 is $47.74. 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.

What are the cheapest Heating Parts for my 1966 Mercury S-55?

The cheapest 1966 Mercury S-55 Heating Parts we carry are:

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

Yes. We stock Heating Parts for 4 other popular 1966 Mercury models. Some of the most popular are 1966 Monterey Heating Parts, 1966 Colony Park Heating Parts, 1966 Comet Heating Parts, 1966 Montclair Heating Parts, and 1966 Park Lane Heating Parts.

What types of Heating Parts do you sell for my 1966 Mercury S-55?

As of 11/2/25, these are some of the most in-demand types of Heating Parts for a 1966 Mercury S-55:

Can I get help with 1966 Mercury S-55 Heating Part orders?

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

What is your return policy for Mercury S-55 Heating Parts?

Advance Auto Parts keeps returns simple. For new Mercury S-55 Heating Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.