1978 GMC C25 Air Conditioning Parts

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1978 GMC C25 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 C25 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including AC Compressor Without Clutch, AC Line O-Rings, and Accumulator and Receiver Driers. 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 Carquest Premium, Factory Air, and Carquest. For example, Carquest Premium Air Conditioning Parts start at just $3.99 with an average 4.5 star rating. Factory Air and Carquest offer similar pricing and quality, backed by strong customer feedback. With over 1,584 reviews and a solid 3.4 star average, you can shop with confidence knowing other GMC C25 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 GMC C25 Air Conditioning Part at Advance Auto Parts is around $108.87, with a range that starts at $0.65 and goes up to $711.99. With 45 options in stock from 10 trusted brands, finding the right fit is easy. Popular picks like Carquest A/C Compressor, New, with Clutch, with R4 Lightweight Compressor, T58937, Factory Air Green Round O-Ring (Sold by each), 24650, and Carquest A/C Compressor, T58231 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 C25 in peak condition, inside and out.

Essential 1978 GMC C25 Air Conditioning Parts

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

Carquest A/C Evaporator Core Repair Kit, T16152

from

$23.99
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.
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Schaeffler – Schaeffler Bearing – DGBB (Deep Groove Ball Bearing), 5908-VAW (Part No.5908-VAW)

Schaeffler Bearing - DGBB (Deep Groove Ball Bearing), 5908-VAW

from

$45.99
We develop and produce high-quality roller bearings, spherical bearings, and plain bearings worldwide for a wide range of applications.
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Carquest Premium – Carquest A/C Accumulator Body, T33204 (Part No.T33204)

Carquest A/C Accumulator Body, T33204

from

$37.99
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.
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KAI – KAI A/C Condenser, CND36120 (Part No.CND36120)

KAI A/C Condenser, CND36120

from

$217.99
New Platinum Pro A/C Condenser, Factory Air
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Dorman – Dorman Two-Wire Pressure, 85141 (Part No.85141)

Dorman Two-Wire Pressure, 85141

from

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

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

from

$2.29
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Carquest Premium – Carquest A/C Clutch Cycle Switch Connector, T37219 (Part No.T37219)

Carquest A/C Clutch Cycle Switch Connector, T37219

from

$17.49
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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Carquest Premium – Carquest A/C Compressor, New, with Clutch, with A6 Compressor, T58096 (Part No.T58096)

Carquest A/C Compressor, New, with Clutch, with A6 Compressor, T58096

from

$446.99
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.
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Carquest Premium – Carquest A/C Valve Core/Cap, T26777 (Part No.T26777)

Carquest A/C Valve Core/Cap, T26777

from

$20.99
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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Carquest Premium – Carquest Air Conditioner Clutch Cycle Switch, ACA1259 (Part No.ACA1259)

Carquest Air Conditioner Clutch Cycle Switch, ACA1259

from

$11.79
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.
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Carquest Premium – Carquest A/C Evaporator Core, T54275 (Part No.T54275)

Carquest A/C Evaporator Core, T54275

from

$104.99
Carquest Evaporators are designed to remove heat from the air inside the passenger compartment of a vehicle resulting in cooler air temperatures. They are manufactured to meet or exceed original equipment specifications and are designed to easily fit into the engine compartment.
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Carquest Premium – Carquest A/C Orifice Tube – White, T623 (Part No.T623)

Carquest A/C Orifice Tube - White, T623

from

$29.49
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube 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.
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Carquest Premium – Carquest A/C Orifice Tube – White, T38623 (Part No.T38623)

Carquest A/C Orifice Tube - White, T38623

from

$3.99
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube 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.
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Factory Air – Factory Air Cap & Valve A/C System Seal Kit, 26777 (Part No.26777)

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

from

$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.
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Carquest Premium – Carquest Connector, PTA1419 (Part No.PTA1419)

Carquest Connector, PTA1419

from

$4.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system or operating system fault.
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Carquest Premium – Carquest A/C Compressor Cut-Out Switch, ACA1257 (Part No.ACA1257)

Carquest A/C Compressor Cut-Out Switch, ACA1257

from

$30.99
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.
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Carquest Premium – Carquest Air Conditioner Compressor Cut-Out Switch, ACA1256 (Part No.ACA1256)

Carquest Air Conditioner Compressor Cut-Out Switch, ACA1256

from

$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.
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Carquest Premium – Carquest HVAC Pressure Switch, ACA1251 (Part No.ACA1251)

Carquest HVAC Pressure Switch, ACA1251

from

$42.99
The Carquest Premium line of vehicle electronics are designed for OE form, fit and function for both import and domestic vehicles. The A/C Pressure Switch monitors system pressures, aiding in proper and efficient control of the compressor, fans and system levels. An improperly functioning A/C Pressure Switch will provide erratic or inaccurate actuation and operation, severely affecting system performance and function. Without reliable and accurate actuation from a properly functioning A/C Pressure Switch, critical components and the system as a whole are left unregulated and unprotected which can lead to excessive wear and tear on critical components and costly system damage.
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Carquest Premium – Carquest HVAC Pressure Switch, ACA1253 (Part No.ACA1253)

Carquest HVAC Pressure Switch, ACA1253

from

$22.99
The Carquest Premium line of vehicle electronics are designed for OE form, fit and function for both import and domestic vehicles. The A/C Pressure Switch monitors system pressures, aiding in proper and efficient control of the compressor, fans and system levels. An improperly functioning A/C Pressure Switch will provide erratic or inaccurate actuation and operation, severely affecting system performance and function. Without reliable and accurate actuation from a properly functioning A/C Pressure Switch, critical components and the system as a whole are left unregulated and unprotected which can lead to excessive wear and tear on critical components and costly system damage.
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Factory Air – Factory Air Green Oval O-Ring (Sold by each), 24619 (Part No.24619)

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

from

$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – Factory Air Green Round O-Ring (Sold by each), 24650 (Part No.24650)

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

from

$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Driveworks – Driveworks Ball Bearing, S-907257 (Part No.S-907257)

Driveworks Ball Bearing, S-907257

from

$22.49
Value-priced bearing meets all cataloged application requirements.
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National – National Multi-Purpose Bearing, S-128 (Part No.S-128)

National Multi-Purpose Bearing, S-128

from

$12.49
Manufactured with premium materials, National needle bearings are designed and engineered to meet OE specifications.
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National – National Multi-Purpose Bearing, 907257 (Part No.907257)

National Multi-Purpose Bearing, 907257

from

$54.99
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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Carquest Premium – Carquest A/C Refrigerant Discharge / Suction Hose Assembly, T55079 (Part No.T55079)

Carquest A/C Refrigerant Discharge / Suction Hose Assembly, T55079

from

$75.99
Carquest Hose Assemblies are designed to carry refrigerant in an air conditioning system. They are manufactured to meet or exceed original equipment specifications and are designed to easily fit into the engine compartment.
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Most Popular AC Compressor Without Clutch for 1978 GMC C25s

Enhance your 1978 GMC C25 with one of the 9 AC Compressor Without Clutch we have in stock, starting at just $296.99.

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

Carquest Reman GM A6 Compressor w/ Clutch, DW57098

from

$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.
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Carquest Premium – Carquest A/C Compressor, New, with Clutch, with R4 Lightweight Compressor, T58937 (Part No.T58937)

Carquest A/C Compressor, New, with Clutch, with R4 Lightweight Compressor, T58937

from

$296.99
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.
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Carquest Premium – Carquest A/C Compressor, T58231 (Part No.T58231)

Carquest A/C Compressor, T58231

from

$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.
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GM Genuine Parts – GM Genuine Parts Air Conditioning Compressor and Clutch Assembly, 15-20206 (Part No.15-20206)

GM Genuine Parts Air Conditioning Compressor and Clutch Assembly, 15-20206

from

$326.99
GM Genuine Parts A/C Compressors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These compressors pump refrigerant through the system. The compressor is typically engine driven via the accessory belt, and a clutch on the compressor is used to engage and disengage the compressor. Hybrid vehicles are typically equipped with an electric motor driven compressor. The compressor is lubricated by refrigerant oil. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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Carquest Standard – Carquest Reman GM A6 Compressor w/ Clutch, DW57096 (Part No.DW57096)

Carquest Reman GM A6 Compressor w/ Clutch, DW57096

from

$368.99
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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Carquest Premium – Carquest A/C Compressor, New, with Clutch, with A6 Compressor, T58096 (Part No.T58096)

Carquest A/C Compressor, New, with Clutch, with A6 Compressor, T58096

from

$446.99
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.
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Carquest Standard – Carquest Reman GM A6 Compressor w/ Clutch, DW57087 (Part No.DW57087)

Carquest Reman GM A6 Compressor w/ Clutch, DW57087

from

$334.99
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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Carquest Premium – Carquest New GM A6 Compressor with Clutch, T58098 (Part No.T58098)

Carquest New GM A6 Compressor with Clutch, T58098

from

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

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

from

$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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Best-Selling 1978 GMC C25 AC Line O-Ring

Upgrade your C25 with our best-selling AC Line O-Ring with a 4 Starts rating across 6 reviews.

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

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

from

$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.
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Top-Quality Accumulator and Receiver Driers for 1978 GMC C25s

Choose a high-quality OEM or aftermarket Accumulator and Receiver Drier for GMC C25s and enjoy top-notch performance from $16.99.

Carquest Premium – Carquest A/C Accumulator Tube Outlet, T34209 (Part No.T34209)

Carquest A/C Accumulator Tube Outlet, T34209

from

$16.99
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.
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Carquest Premium – Carquest A/C Accumulator Body, T33204 (Part No.T33204)

Carquest A/C Accumulator Body, T33204

from

$37.99
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.
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Top Picks for 1978 GMC C25 AC Condensers

Invest in one of our 2 durable AC Condensers for your 1978 GMC, knowing you’re getting trusted brands and expert craftsmanship.

Carquest Premium – Carquest A/C Condenser, 2053 (Part No.2053)

Carquest A/C Condenser, 2053

from

$156.99
The Carquest condenser is an integral component of the motor vehicle air conditioning system. This part condenses the refrigerant into a liquid to prepare it for entry into the compressor. The condenser is manufactured according to OEM design specifications to ensure a long life with quality performance. Exact design standards produce a seamless fit into the engine compartment.
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KAI – KAI A/C Condenser, CND36120 (Part No.CND36120)

KAI A/C Condenser, CND36120

from

$217.99
New Platinum Pro A/C Condenser, Factory Air
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Top-Rated Expansion Valve and Orifice Tubes for 1978 GMC C25s

Make a smart move for your 1978 GMC C25 with products all priced from $3.99 to $29.49.

Carquest Premium – Carquest A/C Orifice Tube – White, T38623 (Part No.T38623)

Carquest A/C Orifice Tube - White, T38623

from

$3.99
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube 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.
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Carquest Premium – Carquest A/C Orifice Tube – Automatic Adjusting, T38904 (Part No.T38904)

Carquest A/C Orifice Tube - Automatic Adjusting, T38904

from

$22.99
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube 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.
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Carquest Premium – Carquest A/C Orifice Tube, T38902 (Part No.T38902)

Carquest A/C Orifice Tube, T38902

from

$16.99
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube 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.
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Carquest Premium – Carquest A/C Orifice Tube – White, T623 (Part No.T623)

Carquest A/C Orifice Tube - White, T623

from

$29.49
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube 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.
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Top-Rated Air Conditioning Part Brands For Your 1978 GMC C25

When it comes to finding the perfect Air Conditioning Part for your 1978 GMC C25, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 10 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 $3.99. Purchasing a Air Conditioning Part from us here at Advance Auto Parts is a smart move for both you and your 1978 GMC C25, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 1978 GMC C25 Air Conditioning Parts

If you’re looking for a top-quality Air Conditioning Part for your 1978 GMC C25, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Air Conditioning Parts. We have 3 Carquest Premium Air Conditioning Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $3.99 and an average cost of $43.99, you’ll find the perfect Air Conditioning Part for your needs and budget. Carquest Premium Air Conditioning Parts for the 1978 GMC C25 come highly rated, with over 196 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.
Carquest A/C Orifice Tube - White, T38623
from $3.99
(97)
Carquest A/C Orifice Tube – White, T38623
“Worked perfectly”
Carquest A/C Evaporator Core, T54275
from $104.99
(2)
Carquest A/C Evaporator Core, T54275
“This evaporator kept me from having to flush out my old one and re-use it. It’s such a great product for the price listed and was easy to install in m”

Top-Quality Factory Air 1978 GMC C25 Air Conditioning Parts

For those in search of a high-quality Air Conditioning Part for their 1978 GMC C25, 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.
Factory Air Compressor Mounted High Cut-Out Pressure Switch, 35974
from $18.45
(10)
Factory Air Compressor Mounted High Cut-Out Pressure Switch, 35974
“AC high pressure switch work perfect”
Factory Air Cap & Valve A/C System Seal Kit, 26777
from $20.99
(6)
Factory Air Cap & Valve A/C System Seal Kit, 26777
“Good product and price.”

FAQs for 1978 GMC C25 Air Conditioning Parts

What are the best-selling Air Conditioning Parts for 1978 GMC C25s?

Out of 45 Air Conditioning Parts that fit 1978 GMC C25s, the following parts are the top sellers:

What’s the price range for 1978 GMC C25 Air Conditioning Parts?

The prices of Air Conditioning Parts for the 1978 GMC C25 range from $0.65 up to $711.99 for the most premium parts.

What is the average price of an Air Conditioning Part for a 1978 GMC C25?

The average price for Air Conditioning Parts for the 1978 GMC C25 is $108.87. 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 C25 model years?

Yes, we carry Air Conditioning Parts for 2 model years of GMC C25s 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 C25?

The cheapest 1978 GMC C25 Air Conditioning Parts we carry are:

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 C25?

The one 1978 GMC C25 Air Conditioning Part we have in stock is the Factory Air Green Round O-Ring (Sold by each), 24650. It costs $1.99.

What types of Air Conditioning Parts do you sell for my 1978 GMC C25?

As of 8/2/26, these are some of the most in-demand types of Air Conditioning Parts for a 1978 GMC C25:

Can I get help with 1978 GMC C25 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 C25 Air Conditioning Parts?

Advance Auto Parts keeps returns simple. For new GMC C25 Air Conditioning Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.