1978 GMC P15 Air Conditioning Parts

Name: Carquest Air Conditioner Compressor Cut-Out Switch, ACA1256
Brand: Carquest Premium
SKU: ACA1256
Price: 20.79 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1978 GMC P15 in Top Shape with Quality Air Conditioning Parts

Whether you’re repairing or upgrading your Air Conditioning Part, using high-quality parts is key to keeping your 1978 GMC P15 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including AC Line O-Rings, AC Compressor Without Clutch, and AC O-Ring and Gasket Kits. 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.

Top-Rated Air Conditioning Parts from Trusted Brands

Looking for a reliable Air Conditioning Part? We’ve got you covered with options from brands you know and trust like Factory Air, Carquest, and Carquest Premium. For example, Factory Air Air Conditioning Parts start at just $7.29 with an average 4.4 star rating. Carquest and Carquest Premium offer similar pricing and quality, backed by strong customer feedback. With over 52 reviews and a solid 3.9 star average, you can shop with confidence knowing other GMC P15 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 GMC P15 Air Conditioning Part at Advance Auto Parts is around $70.36, with a range that starts at $0.65 and goes up to $496.99. With 29 options in stock from 7 trusted brands, finding the right fit is easy. Popular picks like National Multi-Purpose Bearing, 203-FF, Driveworks Multi-Purpose Bearing, SL-203-FF, and Factory Air Green Round O-Ring (Sold by each), 24650 start at just $0.95 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Air Conditioning Part, don’t forget to check out other key components like Blower Motor and Related Products and Engine Cooling Parts. At Advance Auto Parts, we’re here to help you keep your 1978 GMC P15 in peak condition, inside and out.

Looking for the perfect Air Conditioning Part for your 1978 GMC P15? You’re in the right place. Below, you’ll find links to various types of Air Conditioning Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Air Conditioning Parts, ensuring durability and a precise fit for your GMC P15. Whether you’re driving a 1978 model or another popular model year like 1975, 1976, and 1977, we’ve got you covered. Purchasing Air Conditioning Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Air Conditioning Parts that fit your vehicle.

Essential 1978 GMC P15 Air Conditioning Parts

Carquest Air Conditioner Compressor Cut-Out Switch, ACA1256

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$20.79

Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The HVAC Pressure Sensor/Switch monitors the refrigerant pressure within the air conditioning system, ensuring optimal performance and preventing potential system damage, which enhances climate control and passenger comfort. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.

Carquest A/C Compressor Cut-Out Switch, ACA1257

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$30.99

Carquest A/C Compressor Cut-Off Switch Harness Connector, T37222

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$29.99

Carquest A/C Accessories provide a comprehensive offering of premium quality fittings and tools to service all aspects of an a/c service from the most simple fitting replacement to complex diagnostics required for late model applications.

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$14.49

This HVAC switch connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Carquest A/C Evaporator Core Repair Kit, T16149

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$26.99

Carquest Expansion Valves are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each expansion valve is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.

Carquest A/C Evaporator Core Repair Kit, T16152

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$23.99

Factory Air Cap & Valve A/C System Seal Kit, 26777

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$20.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Factory Air.

Driveworks Multi-Purpose Bearing, SL-203-FF

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$13.49

Carquest Standard Bearings provide OE fit, form and function

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$14.49

Designed to meet or exceed OE quality, premium-quality bearings from National are manufactured to exacting standards to deliver lasting performance and extended bearing life.

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$22.49

Value-priced bearing meets all cataloged application requirements.

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$12.49

Manufactured with premium materials, National needle bearings are designed and engineered to meet OE specifications.

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$24.99

Factory Air Green Round O-Ring (Sold by each), 24623

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$1.99

Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications

Factory Air O-Ring & Gasket A/C System Seal Kit, 26739

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$7.29

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Factory Air.

Carquest Air Conditioner Compressor Cut-Out Switch, ACA1264

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$32.49

Factory Air Compressor Mounted High Cut-Out Pressure Switch, 35974

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$36.99

High quality OE replacement part with all components needed to complete the job

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$311.99

Carquest New Compressors are designed, manufactured and tested to meet or exceed strict original equipment specifications for superior quality and performance. Each new compressor is tested to provide durable life to the vehicle’s air conditioning system. All new compressor components are assembled using state of the art equipment and techniques to ensure smooth operation. Each part is equipped with a clutch and connector that matches the original equipment part and provides an exact replacement to your vehicle’s part. All compressors are supplied with the necessary gaskets and o-rings for installation.

Carquest New GM A6 Compressor with Clutch, T58098

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$496.99

New Compressors are built in a ISO9001:2015 Certified facility. These facilities go through several audits to ensure quality standards in the manufacturing process.

Omega Environmental Tech A/C Compressor, 20-10403-AM

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$711.99

Our compressors are built with high-quality components for superior reliability and performance. Engineered to reduce fuel consumption and minimize noise, they enhance driver and passenger comfort. Designed as direct replacements, they ensure a perfect fit and easy installation. Every compressor and component is brand new-never remanufactured-and undergoes rigorous multi-point quality testing to guarantee durability and performance. Trusted for industry-leading quality and reliability.

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$20.99

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$29.99

Carquest Accumulators and Receiver Driers are designed to store, filter and dry the air conditioning refrigerant to provide proper performance and durability for the air conditioning system. They are manufactured to meet or exceed original equipment specifications.

Factory Air Green Round O-Ring (Sold by each), 24650

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$1.99

Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications

Factory Air Green Oval O-Ring (Sold by each), 24619

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$1.99

Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications

Popular 1978 GMC P15 Air Conditioning Parts Categories

AC Compressor Without Clutch

AC Harness Connectors

AC Line O-Rings

AC Caps and Valve Core Kits

Accumulator and Receiver Driers

AC Clutch Bearings

AC O-Ring and Gasket Kits

AC Evaporator Repair Kits

Expansion Valve and Orifice Tubes

AC High Pressure Side Switches

AC Compressor Cut-Off Switches

AC Switch Connectors

AC Compressor Thrust Bearings

AC Compressor Seals

Most Popular AC Line O-Ring for 1978 GMC P15s

Enhance your 1978 GMC P15 with this popular AC Line O-Ring we have in stock, for $20.99.

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$20.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Factory Air.

Best-Selling 1978 GMC P15 AC Compressor Without Clutch

Upgrade your P15 with one of our 4 best-selling AC Compressor Without Clutch, earning an average 3.33 stars rating across 12 reviews.

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Carquest Reman GM A6 Compressor w/ Clutch, DW57098

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$373.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Carquest.

Carquest Reman GM A6 Compressor w/ Clutch, DW57089

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$321.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Carquest.

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$311.99

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$496.99

New Compressors are built in a ISO9001:2015 Certified facility. These facilities go through several audits to ensure quality standards in the manufacturing process.

Top-Quality AC O-Ring and Gasket Kits for 1978 GMC P15s

Choose a high-quality OEM or aftermarket AC O-Ring and Gasket Kit for GMC P15s and enjoy top-notch performance from $1.99.

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$7.29

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Factory Air.

Factory Air Green Round O-Ring (Sold by each), 24615

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$2.29

Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications

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$1.99

Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications

Our Top Pick for a 1978 GMC P15 Expansion Valve and Orifice Tube

Invest in a durable Expansion Valve and Orifice Tube for your 1978 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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$24.99

Our Top-Rated Accumulator and Receiver Driers for 1978 GMC P15s

Make a smart move for your 1978 GMC P15 with our Accumulator and Receiver Drier for $29.99.

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$29.99

Top-Rated Air Conditioning Part Brands For Your 1978 GMC P15

When it comes to finding the perfect Air Conditioning Part for your 1978 GMC P15, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 7 trusted brands. We carry the most popular Air Conditioning Part brands including Carquest Premium, Factory Air, and Carquest, and more, all known for their exceptional customer ratings (average brand rating of 4.5 stars) and competitive prices, as low as $7.29. Purchasing a Air Conditioning Part from us here at Advance Auto Parts is a smart move for both you and your 1978 GMC P15, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 1978 GMC P15 Air Conditioning Parts

If you’re looking for a top-quality Air Conditioning Part for your 1978 GMC P15, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Air Conditioning Parts. We have 1 Carquest Premium Air Conditioning Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $29.99, you’ll find the perfect Air Conditioning Part for your needs and budget. Carquest Premium Air Conditioning Parts for the 1978 GMC P15 come highly rated, with over 4 customer reviews and an impressive average rating of 4.5 stars. Choosing a Carquest Premium Air Conditioning Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $29.99

(4)

Carquest A/C Receiver Drier, T33211

“Exact fit for my needs.”

Top-Quality Factory Air 1978 GMC P15 Air Conditioning Parts

For those in search of a high-quality Air Conditioning Part for their 1978 GMC P15, Advance Auto Parts offers a great selection of Factory Air Air Conditioning Parts. With 3 Factory Air Air Conditioning Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Air Conditioning Parts start at just $7.29, with an average price of $21.76, giving you a range of options to suit your budget. Backed by over 19 customer ratings and an average rating of 4.4 stars, Factory Air Air Conditioning Parts provide both reliability and excellent performance. Choosing a Factory Air Air Conditioning Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $18.45

(10)

Factory Air Compressor Mounted High Cut-Out Pressure Switch, 35974

“AC high pressure switch work perfect”

from $7.29

(3)

Factory Air O-Ring & Gasket A/C System Seal Kit, 26739

“Thx”

from $20.99

(6)

Factory Air Cap & Valve A/C System Seal Kit, 26777

“Good product and price.”

FAQs for 1978 GMC P15 Air Conditioning Parts

What are the best-selling Air Conditioning Parts for 1978 GMC P15s?

Out of 29 Air Conditioning Parts that fit 1978 GMC P15s, the following parts are the top sellers:

National Multi-Purpose Bearing, 203-FF (3272729) – $14.49
Driveworks Multi-Purpose Bearing, SL-203-FF (5050642) – $13.49
Factory Air Green Round O-Ring (Sold by each), 24650 (18890169) – $1.99

What’s the price range for 1978 GMC P15 Air Conditioning Parts?

The prices of Air Conditioning Parts for the 1978 GMC P15 range from $0.65 up to $496.99 for the most premium parts.

What is the average price of an Air Conditioning Part for a 1978 GMC P15?

The average price for Air Conditioning Parts for the 1978 GMC P15 is $70.36. Keep in mind the variety of part types within our Air Conditioning Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Air Conditioning Parts for other GMC P15 model years?

Yes, we carry Air Conditioning Parts for 2 model years of GMC P15s between 1975 and 1977. The following model years are the most popular for Air Conditioning Part purchases: 1977, 1976, and 1975.

What are the cheapest Air Conditioning Parts for my 1978 GMC P15?

The cheapest 1978 GMC P15 Air Conditioning Parts we carry are:

Factory Air Green Round O-Ring (Sold by each), 24650 (18890169) – $1.99
Factory Air Green Oval O-Ring (Sold by each), 24619 (18893146) – $1.99
Factory Air Green Round O-Ring (Sold by each), 24623 (18890849) – $1.99
Factory Air Green Round O-Ring (Sold by each), 24615 (18890821) – $2.29
Factory Air O-Ring & Gasket A/C System Seal Kit, 26739 (15890322) – $7.29

Does Advance Auto Parts sell Air Conditioning Parts for any other 1978 GMC models?

Yes. We stock Air Conditioning Parts for 12 other popular 1978 GMC models. Some of the most popular are 1978 Jimmy Air Conditioning Parts, 1978 Caballero Air Conditioning Parts, 1978 K25 Air Conditioning Parts, 1978 K15 Air Conditioning Parts, and 1978 G25 Air Conditioning Parts.

What are the top-rated Air Conditioning Parts that fit the 1978 GMC P15?

Based on 52 reviews by customers, our 1978 GMC P15 Air Conditioning Parts have an average customer rating of 3.9 stars. These are the highest-rated categories of Air Conditioning Parts for the 1978 GMC P15 and their top-rated products:

AC Line O-Rings
- Factory Air Cap & Valve A/C System Seal Kit, 26777 (15890308) – $20.99
AC High Pressure Side Switches
- Factory Air Compressor Mounted High Cut-Out Pressure Switch, 35974 (3880036) – $36.99

What types of Air Conditioning Parts do you sell for my 1978 GMC P15?

As of 8/2/26, these are some of the most in-demand types of Air Conditioning Parts for a 1978 GMC P15:

Can I get help with 1978 GMC P15 Air Conditioning Part orders?

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

What is your return policy for GMC P15 Air Conditioning Parts?

Advance Auto Parts keeps returns simple. For new GMC P15 Air Conditioning Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1978 GMC P15 Air Conditioning Parts

Carquest Premium – Carquest Air Conditioner Compressor Cut-Out Switch, ACA1256 (Part No.ACA1256)

Carquest Premium – Carquest A/C Compressor Cut-Out Switch, ACA1257 (Part No.ACA1257)

Carquest Premium – Carquest A/C Compressor Cut-Off Switch Harness Connector, T37222 (Part No.T37222)

Dorman – Dorman Two-Wire Pressure, 85141 (Part No.85141)

Carquest Premium – Carquest A/C Evaporator Core Repair Kit, T16149 (Part No.T16149)

Carquest Premium – Carquest A/C Evaporator Core Repair Kit, T16152 (Part No.T16152)

Factory Air – Factory Air Cap & Valve A/C System Seal Kit, 26777 (Part No.26777)

Driveworks – Driveworks Multi-Purpose Bearing, SL-203-FF (Part No.SL-203-FF)

National – National Multi-Purpose Bearing, 203-FF (Part No.203-FF)

Driveworks – Driveworks Ball Bearing, S-907257 (Part No.S-907257)

National – National Multi-Purpose Bearing, S-128 (Part No.S-128)

Carquest Premium – Carquest A/C Expansion Valve, T38683 (Part No.T38683)

Factory Air – Factory Air Green Round O-Ring (Sold by each), 24623 (Part No.24623)

Factory Air – Factory Air O-Ring & Gasket A/C System Seal Kit, 26739 (Part No.26739)

Carquest Premium – Carquest Air Conditioner Compressor Cut-Out Switch, ACA1264 (Part No.ACA1264)

Factory Air – Factory Air Compressor Mounted High Cut-Out Pressure Switch, 35974 (Part No.35974)

Carquest Premium – Carquest A/C Compressor, T58231 (Part No.T58231)

Carquest Premium – Carquest New GM A6 Compressor with Clutch, T58098 (Part No.T58098)

Omega Environmental Tech – Omega Environmental Tech A/C Compressor, 20-10403-AM (Part No.20-10403-AM)

Carquest Premium – Carquest A/C Valve Core/Cap, T26777 (Part No.T26777)

Carquest Premium – Carquest A/C Receiver Drier, T33211 (Part No.T33211)

Factory Air – Factory Air Green Round O-Ring (Sold by each), 24650 (Part No.24650)

Factory Air – Factory Air Green Oval O-Ring (Sold by each), 24619 (Part No.24619)

Factory Air – Factory Air Cap & Valve A/C System Seal Kit, 26777 (Part No.26777)

Carquest Standard – Carquest Reman GM A6 Compressor w/ Clutch, DW57098 (Part No.DW57098)

Carquest Standard – Carquest Reman GM A6 Compressor w/ Clutch, DW57089 (Part No.DW57089)

Carquest Premium – Carquest A/C Compressor, T58231 (Part No.T58231)

Carquest Premium – Carquest New GM A6 Compressor with Clutch, T58098 (Part No.T58098)

Factory Air – Factory Air O-Ring & Gasket A/C System Seal Kit, 26739 (Part No.26739)

Factory Air – Factory Air Green Round O-Ring (Sold by each), 24615 (Part No.24615)

Factory Air – Factory Air Green Round O-Ring (Sold by each), 24623 (Part No.24623)

Carquest Premium – Carquest A/C Expansion Valve, T38683 (Part No.T38683)

Carquest Premium – Carquest A/C Receiver Drier, T33211 (Part No.T33211)