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  3. DELCO 15-7459

15-7459 DELCO Nos Vacuum Control Relay Gm Buick Chevrolet

fits make: Gm, Buick, Chevrolet, Cadillac. year: 1971-76.

15-7459 DELCO Nos Vacuum Control Relay Gm Buick Chevrolet
Identifiers
BrandDELCO
Manufacturer Part Number15-7459
Part TypeVACUUM CONTROL
Oe/oem Part Number7930501
Vintage PartYES
Country Of OriginUNITED STATES

Review DELCO Nos Gm A/c Vacuum Control Relay Buick Chevrolet Cadillac for GM BUICK CHEVROLET CADILLAC 1971-76

The Delco 15-7459 A/C Vacuum Control Relay D-7459 is a crucial component in the air conditioning system of select General Motors vehicles manufactured between 1971 and 1976, including Buick, Chevrolet, and Cadillac models. This relay plays a vital role in controlling the vacuum operation of the air conditioning compressor.

The Delco 15-7459 is an electrically operated vacuum control relay, designed to switch the compressor on and off based on the vacuum conditions in the system. The relay is encased in a robust and durable thermoplastic housing, ensuring protection against various environmental factors. The housing is also designed to withstand high operating temperatures, making it suitable for long-term use in automotive applications.

The relay features three terminals, labeled as A, B, and C. Terminal A is the input terminal, which receives power from the vehicle's electrical system. Terminal B is the output terminal, which provides power to the compressor when the relay is activated. Terminal C is the vacuum terminal, which senses the vacuum conditions in the system and triggers the relay to switch the compressor on or off accordingly.

The Delco 15-7459 is a direct replacement for the original equipment relay, ensuring a perfect fit and reliable operation. It is designed to meet or exceed OEM specifications, providing peace of mind to vehicle owners seeking a high-quality and durable solution for their air conditioning system.

Installation of the Delco 15-7459 is a straightforward process, involving the removal of the old relay and the installation of the new one in its place. The relay comes with clear installation instructions, making it easy for even the most novice DIY enthusiasts to complete the task.

In summary, the Delco 15-7459 A/C Vacuum Control Relay D-7459 is an essential component for the air conditioning system of select 1971-1976 Buick, Chevrolet, and Cadillac vehicles. Its robust design, easy installation, and reliable operation make it a top choice for vehicle owners seeking a high-quality and durable solution for their air conditioning system.

Pros and Cons of Buying Delco 15-7459 NOS GM A/C Vacuum Control Relay (D-7459) for 1971-1976 Buick, Chevrolet, and Cadillac

1. Pros:

a. Original Equipment (OE): This Delco part is a new old stock (NOS) original equipment part, which means it is an exact replacement for the original factory part.

b. Reliability: As an original equipment part, it is designed to meet the highest standards for performance and reliability.

c. Fitment: It is specifically engineered for use in Buick, Chevrolet, and Cadillac vehicles from 1971 to 1976.

d. Availability: New old stock parts like this one are often more readily available than used or rebuilt parts, ensuring a quicker turnaround for repairs.

2. Cons:

a. Cost: Original equipment parts, especially new old stock parts, can be more expensive than used or rebuilt parts due to their higher production costs and the fact that they are new.

b. Availability: While new old stock parts are more readily available than used or rebuilt parts, they may still be harder to find than more common parts.

Ending Conclusion:

The Delco 15-7459 NOS GM A/C Vacuum Control Relay (D-7459) is an excellent choice for those seeking a reliable and authentic replacement for their original factory part in their 1971-1976 Buick, Chevrolet, or Cadillac vehicle. The benefits of using an original equipment part include its precise fitment, reliability, and the peace of mind that comes with knowing you are using a genuine part. However, the cost may be a significant consideration for some.

Recommendation:

If you are looking for a reliable, authentic replacement for your A/C vacuum control relay and are willing to invest in the higher cost of an original equipment part, then the Delco 15-7459 NOS GM A/C Vacuum Control Relay (D-7459) is an excellent choice. If cost is a concern, you may want to consider looking for a used or rebuilt part instead. Ultimately, the decision comes down to your budget, preference for authenticity, and the importance of having a reliable and functioning A/C system in your vehicle.

Details:

New in the box Delco part number D-7459, Gm #7930501air conditioner vacuum checking relay for 1971 to 1981 cars.

specifications aircondiheat:

  • for makes: Gm, Buick, Chevrolet, Cadillac
  • for years: 1971-76
  • brand: Delco
  • mpn: 15-7459
  • part type: Vacuum Control
  • oe/oem part number: 7930501
  • vintage part: Yes
  • country of origin: United States

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

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  • started: january 19, 2026
rating: 99.6% out of 100 based on 772 user ratings.
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