D3004814 OER Heater Core Tempest Gto Lemans Chevelle Skylark

Review OER Heater Core Tempest 442 Without A/c for LEMANS CHEVELLE SKYLARK GTO 1964–1967

Introducing the OER D3004814 Heater Core, specifically designed for select GM vehicles from 1964 to 1967, including the GTO, LeMans, Tempest, Chevelle, and 442 Skylark models with A/C systems. This heater core is an essential component of your vehicle's cooling system, ensuring optimal temperature control inside the cabin during colder weather.

Constructed from high-quality materials, this OER heater core boasts robust durability and reliable performance. It is engineered with superior corrosion resistance, ensuring that it withstands the test of time. The heater core features multiple thin, finned passages that facilitate efficient heat transfer from the engine coolant to the cabin.

The OER D3004814 Heater Core is a direct-fit replacement part, meaning it is designed to seamlessly integrate with your existing HVAC system. It comes complete with all necessary mounting hardware, making installation a breeze. This heater core is also compatible with factory climate control systems, ensuring consistent temperature control throughout your vehicle.

When it comes to maintaining your vehicle's heating system, trust the expertise of OER. This heater core is manufactured to meet or exceed OEM specifications, ensuring that you receive a part that not only fits perfectly but also performs reliably.

In summary, the OER D3004814 Heater Core is a high-performing, durable replacement part designed specifically for select GM vehicles from 1964 to 1967. It ensures efficient heat transfer, reliable temperature control, and easy installation. Trust OER for your heating system needs and enjoy a more comfortable driving experience.

Heater Core Replacement: OEM (D3004814) for 1964-1967 GTO, Lemans, Tempest, Chevelle, and 442 Skylark A/C

Heater core replacement is an essential task for maintaining the heating system in classic cars like the 1964-1967 GTO, Lemans, Tempest, Chevelle, and 442 Skylark. These vehicles used a similar heater core design, and the OEM heater core part number is D3004814. In this discussion, we will outline the pros and cons of buying this OEM heater core and conclude with a recommendation.

1. Fitment Guarantee: OEM parts are manufactured by the vehicle's original equipment manufacturer. Therefore, they are designed to fit perfectly in your specific car model, ensuring optimal performance and reducing the risk of installation issues.

2. Quality: OEM parts are built to the same standards as the parts used when the vehicle was originally manufactured. This means they are made from high-quality materials and are built to last.

3. Warranty: OEM parts often come with warranties that protect against manufacturing defects. This added peace of mind can help save you money in the long run.

4. Availability: OEM parts are widely available from authorized dealers and through online retailers. This makes it easy to find and purchase the part you need.

1. Cost: OEM parts can be more expensive than aftermarket parts. The price difference can be significant, especially for complex systems like a heater core.

2. Longer Lead Time: OEM parts may take longer to arrive due to the manufacturing and shipping process. This could delay your repair or restoration project.

3. No Performance Enhancements: OEM parts do not offer any performance enhancements compared to aftermarket parts. If you are looking for improved heating performance or additional features, aftermarket options may be a better choice.

When considering a heater core replacement for your classic car, the decision between OEM and aftermarket parts depends on your priorities. OEM parts offer a perfect fit, high-quality construction, and peace of mind through warranties. However, they can be more expensive and take longer to arrive.

If you value the assurance of a perfect fit and the confidence that comes with using genuine OEM parts, then the OEM heater core (D3004814) is the best choice for your 1964-1967 GTO, Lemans, Tempest, Chevelle, and 442 Skylark. However, if you are looking for a more cost-effective option with potentially quicker availability, consider exploring aftermarket heater core alternatives.

Based on the information provided, our recommendation is to opt for the OEM heater core (D3004814) if you prioritize a perfect fit and the peace of mind that comes with using genuine OEM parts. However, if your budget is a concern and you are willing to accept a slightly longer lead time, consider exploring aftermarket heater core alternatives for potential cost savings. Ultimately, the decision is yours based on your priorities and the specific needs of your classic car project.

Details:

The product is a genuine oe/oem part number 3004814 and comes with manufacturer D3004814.

specifications heatercoreco:

• for models: Gto, Lemans, Chevelle, Skylark
• for years: 1964–1967
• brand: Oer
• mpn: D3004814
• country of origin: United States
• vintage part: Yes
• universal fitment: No
• california prop 65 warning: Warning
• type: Heater Core

payments heatercoreco:

• other
• wallet: apple-pay
• credit card: discover

returns heatercoreco:

• policy: no returns

seller heatercoreco:

• city: monrovia, california
• # reviews: 15
• rating: 100.0%

general heatercoreco:

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

shipping heatercoreco:

• carrier: usps
• type: calculated
• service: usps ground advantage, usps priority mail
• transit: 6-13 days
• class: standard, expedited

offer heatercoreco:

• started: february 7, 2026
• prices: $130.00–$186.98
• item condition:
  • Remanufactured
  • New
• options: ship-to-home
• in stock #: 2
• availability: in stock
• sold #: 10
• best offers: true