398015 PROLIANCE INTL/READY-AIRE Copper Heater Core Integral

Review PROLIANCE INTL/READY-AIRE New Copper Brass Heater Core For Ford Without Integral A/c for FORD MUSTANG 1965–1966

Introducing the Proliance Intl Ready-Aire 398015 Copper Heater Core, specifically designed for 1965 and 1966 Ford Mustang models with integral A/C systems. This heater core is an essential component of your vehicle's cooling and heating system, ensuring optimal temperature control for both comfort and engine performance.

The Proliance Intl Ready-Aire 398015 Copper Heater Core is manufactured using premium copper and brass materials, ensuring superior durability and longevity. The copper fins provide exceptional heat transfer capabilities, allowing the core to efficiently heat the cabin during colder weather. The brass tanks are robust and resistant to corrosion, ensuring the heater core can withstand the test of time.

This heater core is a direct replacement for the original part, making installation quick and hassle-free. Each core comes complete with new O-rings and gaskets, ensuring a perfect seal and preventing any potential leaks. The core is also pre-evacuated to remove any excess air, reducing the likelihood of bubbles forming in the cooling system during operation.

The Proliance Intl Ready-Aire 398015 Copper Heater Core is designed to fit seamlessly into your 1965 or 1966 Ford Mustang's cooling system, ensuring a perfect fit and optimal performance. The core measures approximately 11.5 inches in length, 10 inches in width, and 3 inches in height, making it a precise match for your vehicle.

In summary, the Proliance Intl Ready-Aire 398015 Copper Heater Core is a high-quality, durable, and efficient replacement for the original heater core in your 1965 or 1966 Ford Mustang. Its premium copper and brass construction, efficient heat transfer capabilities, and inclusion of new O-rings and gaskets make it an excellent choice for restoring your vehicle's cooling and heating system to its best condition.

The Proliance International/Ready-Aire part number 398015 is a copper heater core designed for use in the integral A/C systems of certain 1965 and 1966 Ford Mustang models. Replacing the original heater core can provide several benefits, but it also comes with some potential drawbacks.

1. Improved Heater Performance: A new copper heater core can provide better heating performance compared to a worn-out or damaged original core.

2. Enhanced A/C Functionality: A new heater core can improve the overall functionality of the A/C system, as a malfunctioning heater core can affect the cooling efficiency.

3. Preventing Corrosion: A new heater core can help prevent further corrosion and potential damage to the A/C system.

4. Increased Comfort: A properly functioning heater core can contribute to increased comfort and enjoyment while driving, particularly during colder weather.

1. Cost: Replacing the heater core can be an expensive repair, as it requires the purchase of the new part, as well as the labor costs associated with installation.

2. Installation Complexity: The heater core is a complex component located in the engine compartment, and its replacement can be a time-consuming and intricate process.

3. Potential for Leaks: During the installation process, there is a risk of causing leaks, which can result in additional repair costs and potential damage to the vehicle.

Replacing the heater core in a 1965 or 1966 Ford Mustang with a Proliance International/Ready-Aire 398015 copper heater core comes with several benefits, such as improved heater performance, enhanced A/C functionality, prevention of further corrosion, and increased comfort. However, this repair also comes with some potential drawbacks, including the cost, installation complexity, and risk of leaks. Ultimately, the decision to replace the heater core depends on the individual vehicle's condition, the driver's comfort preferences, and their budget.

If your Ford Mustang's heater is not performing optimally, or if you notice signs of corrosion or damage to the A/C system, it may be worth considering the replacement of the heater core with a new copper unit like the Proliance International/Ready-Aire 398015. However, it is recommended to consult with a certified mechanic to assess the condition of the heater core and the overall health of the A/C system before making a decision. Additionally, it is essential to ensure that the installation process is carried out by a professional to minimize the risks of leaks and other potential complications.

Details:

New heater core for, copper brass for 1965 1966 Ford Mustang without integral a/c, meets or exceeds original equipment performance. C5tz, c5uz, c6te-18476a. Note: product images may differ from actual product appearance.

specifications heatercoreco:

• for models: Mustang
• for makes: Ford
• for years: 1965–1966
• brand: Proliance Intl/ready-aire
• mpn: 398015
• part type: Heater
• fitment type: Direct Replacement
• country of origin: United States

returns heatercoreco:

• policy: returns accepted
• time: 30 days
• paid by: seller

general heatercoreco:

• category: Auto Parts > Car Truck Accessories > Air Conditioning Heating > Heater Cores

shipping heatercoreco:

• service: standard
• class: standard
• type: fixed
• transit: 4-11 days

seller heatercoreco:

• # reviews: 23031
• rating: 99.6%
• city: usa

offer heatercoreco:

• in stock #: 5
• availability: in stock
• prices: $135.00–$139.04
• item condition: New
• sold #: 8
• started: february 9, 2026
• options: ship-to-home

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