3115648 GM Nos Underseat Round Heater Core Buick Olds Pontiac

Review GM Vintage Nos Underseat Round Heater Core Buick Olds Pontiac Cadillac for BUICK OLDS PONTIAC CADILLAC 1940–1949

The GM 3115648 heater core is a critical component in maintaining the heating system of select Buick, Olds, and Cadillac vehicles from the 1940s. This round heater core is designed specifically for these classic automobiles, ensuring a proper fit and function.

This heater core is made of high-quality materials, including aluminum and brass, which are renowned for their durability and heat conductivity. The aluminum end tanks are engineered for a secure seal with the engine cooling system, while the brass heater core itself features multiple passages for efficient heat transfer from the coolant to the cabin.

The GM 3115648 heater core measures approximately 6 inches in diameter and 10 inches in length, making it suitable for under-seat installation. It comes with a new gasket to ensure a leak-free connection between the heater core and the engine cooling system.

Installation of this heater core is relatively straightforward for experienced mechanics or enthusiasts. However, it is essential to follow the proper procedures and ensure a good fit to avoid any complications. The kit includes all necessary hardware for a successful installation, such as bolts, nuts, and washers.

It is important to note that this heater core is not suitable for modern vehicles or those with significant modifications to their heating systems. Always consult your vehicle's service manual or a professional technician for any questions regarding the compatibility and installation of this part.

In summary, the GM 3115648 heater core is a valuable addition for restoring the heating system of select Buick, Olds, and Cadillac vehicles from the 1940s. Its high-quality materials, efficient design, and easy installation make it an essential component for maintaining the comfort and functionality of these classic automobiles.

Buying GM Part Number 3115648 for Heater Cores in Old Buick, Olds, Pontiac, and Cadillac Vehicles: A Pros and Cons Analysis

The GM Part Number 3115648 is a round heater core designed for use in various Buick, Olds, Pontiac, and Cadillac models from 1940 to 1949. This part is crucial for maintaining a functional heating system in these vintage vehicles. In this analysis, we will discuss the pros and cons of purchasing this heater core to help you make an informed decision.

1. OEM Part: This heater core is an original equipment manufacturer (OEM) part, meaning it is manufactured by the same company that originally produced it for the vehicle. Using an OEM part can ensure a better fit and function.

2. Restores Heating System: Installing a new heater core can help restore the heating system in your vintage vehicle, providing you with a more comfortable driving experience in colder weather.

3. Long-lasting: OEM parts are typically designed to last longer than aftermarket alternatives, which can save you replacement costs in the future.

1. Cost: Original equipment manufacturer parts can be more expensive than aftermarket alternatives. The cost of the GM Part Number 3115648 may be a significant investment for some vehicle owners.

2. Availability: Due to the age of the vehicles requiring this part, it may be harder to find and source. You may need to contact specialist dealers, repair shops, or even the manufacturer directly to secure the part.

The decision to purchase the GM Part Number 3115648 for your vintage Buick, Olds, Pontiac, or Cadillac vehicle depends on your priorities as a vehicle owner. If you value the originality, fit, and longer lifespan of an OEM part, this heater core may be the best choice for you. However, if cost is a significant concern, you may want to consider aftermarket alternatives. Ultimately, the decision comes down to your individual preferences and budget.

If you prioritize the originality, fit, and durability of an OEM part, I would recommend purchasing the GM Part Number 3115648 for your vintage vehicle's heater core. However, if cost is a major concern, you may want to explore aftermarket alternatives or consider contacting various dealers and repair shops for potential price differences. Regardless of your decision, ensure that you are purchasing the correct part for your specific vehicle model and year to ensure proper fitment and function.

Details:

Looks like no damage except some bending of fins. It may the same used into 50s model's too. It is about 13-1/4 diameter. Flat rate shipping cost is to the lower 48 states of USA only.

Looks clean some patina on tanks. Pictures are part of the .

specifications heatercoreco:

• for makes: Buick, Olds, Pontiac, Cadillac
• for years: 1940–1949
• brand: Gm
• mpn: 3115648
• part type: Heater
• listing code: L6ss26d Los
• ipn: 1940 1941 1942 1946 1947 1948 1949
• oe/oem part number: Yes
• country of origin: United States

offer heatercoreco:

• availability: in stock
• in stock #: 1
• started: april 19, 2026
• sold #: 7
• options: ship-to-home
• price: $399.99
• item condition: Used

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returns heatercoreco:

• policy: no returns

shipping heatercoreco:

• type: fixed
• carrier: usps
• service: usps ground advantage
• transit: 4-8 days
• class: standard

seller heatercoreco:

• rating: 99.7%
• city: allen, michigan
• # reviews: 6449

general heatercoreco:

• category: Auto Parts > Car Truck > Interior Accessories