1978 GMC C25 Air Conditioning Parts

Essential 1978 GMC C25 Air Conditioning Parts

Factory Air – New GM Frigidaire/Harrison R4 Radial Clutch Assembly w/ Coil (Part No.47298)

New GM Frigidaire/Harrison R4 Radial Clutch Assembly w/ Coil

from

$151.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All mounting hardware included
  • Every coil tested for proper ohms
  • Vehicle specific applications
  • Coated to prevent corrosion
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Carquest Premium – A/C New; w/ Clutch; w/ R4 Lightweight Compressor (Part No.T58937)

A/C New; w/ Clutch; w/ R4 Lightweight Compressor

from

$261.99
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.

Product Features:
  • Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
  • New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
  • The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
  • All new compressors must pass a helium leak test and pump up function test prior to packaging.
  • O-Rings and gaskets necessary for installation are included.
  • Matched high-quality needle-roller bearing ensures low friction and high load capability.
  • Light weight aluminum energy-saving casting used for construction.
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Factory Air – Cap & Valve A/C System Seal Kit (Part No.26777)

Cap & Valve A/C System Seal Kit

from

$16.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All the seals needed to complete the job
  • Compatible with both R12 and R134a refrigerants
  • SUV and rear air applications
  • Application specific
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Dorman – Electrical Harness – 2-Wire GM A/C Clutch with Diode (Part No.85143)

Electrical Harness - 2-Wire GM A/C Clutch with Diode

from

$11.99
This HVAC clutch coil 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.

Product Features:
  • Direct replacement – this HVAC clutch coil connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Carquest Premium – A/C Standard Temp Automatic Adjusting Orifice Tube (Part No.T38902)

A/C Standard Temp Automatic Adjusting Orifice Tube

from

$15.79
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.

Product Features:
  • Each orifice tube is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
  • O-Rings necessary for installation are included.
  • Color coded
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Factory Air – Sealing Washer Kit (Part No.24338)

Sealing Washer Kit

from

$5.29
Includes O-Ring; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – Ceramic Shaft Seal Kit (Part No.24016)

Ceramic Shaft Seal Kit

from

$21.29
All hardware included; Compatible with R12 And R134A; High quality construction; Universal applications
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Carquest Premium – A/C Condenser (Part No.2053)

A/C Condenser

from

$152.99
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.

Product Features:
  • This is a parallel flow condenser that contains small micro-channels. It is highly recommended that this condenser be replaced if a failure has occurred in the vehicle’s air conditioning system that has resulted in debris contaminating the system. This
  • The Carquest condenser production process includes quality driven details such as using zinc-coated tubes and electrostatic paint spray at high temperatures to provide the best corrosion resistance and durability in our condensers.
  • Continuous molds, laser welding machines, semi-automatic assembly stations and other advanced equipment provide quality products.
  • Each condenser uses only the highest quality raw materials including pure aluminum (not substandard or recycled) to provide the highest quality standards from beginning to finished product.
  • All brackets are designed per OEM specifications to ensure strength and reduce vibration and movement.
  • We leak test 100% of our condensers in helium leak test chambers to ensure the product does not leak.
  • Our condensers are manufactured from rigid design standards to fit OEM dimensions.
  • Each condenser design endures a series of tests that includes performance testing, vibration testing, blast testing, and salt spray testing to simulate real world conditions.
  • Each Carquest condenser is packaged using superior box construction. This box is easy to open and seal. Each condenser is packaged in the box with internal protection to keep the part centered and away from the package edges. The package passes the fre
  • Each condenser uses only the highest quality raw materials including pure aluminum (not substandard or recycled) to ensure the highest quality standards from beginning to finished product.
  • All brackets are designed per OEM specifications to ensure strength and reduce vibration and movement.
  • We leak test 100% of our condensers in helium leak test chambers to ensure the product does not leak. This industry leading process is the most precise method and can detect even the smallest leak. The leak-free condenser is then charged with nitrogen a
  • Our condensers are manufactured from rigid design standards to match OEM dimensions. Each design undergoes a drop fit into the actual vehicle to ensure the final manufactured product provides an easy installation.
  • Each condenser design endures a series of tests that includes performance testing, vibration testing, blast testing, and salt spray testing to simulate real world conditions.
  • vibration testing
  • blast testing
  • and salt spray testing to simulate real world conditions.
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Carquest Premium – A/C Accumulator Tube (Part No.T34209)

A/C Accumulator Tube

from

$14.49
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.

Product Features:
  • All parts meet or exceed original equipment standards for moisture absorption, pressure and temperature resistance, air tightness, vibration resistance, corrosiveness, and pulse pressure.
  • Desiccant is 100% tested and assembled in a controlled environment to ensure performance meets or exceeds original equipment standards.
  • All accumulators and receiver driers are helium leak tested prior to packaging.
  • O-Rings necessary for installation are included.
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Factory Air – Evaporator Core Repair Kit w/ White Orifice Tube (Part No.16152)

Evaporator Core Repair Kit w/ White Orifice Tube

from

$18.29
Optimized refrigerant flow; Core design meets or exceeds OE performance And efficiency; Application specific design for GM vehicles; Replaces damaged evaporator inlet tube
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National – Bearings (Part No.907257)

Bearings

from

$48.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Carquest Premium – Multi Purpose Relay (Part No.RAC1274)

Multi Purpose Relay

from

$15.79
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – A/C Discharge and Suction Line Hose Assembly (Part No.T55079)

A/C Discharge and Suction Line Hose Assembly

from

$64.99
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.

Product Features:
  • 100% of hose assemblies use Goodyear hoses that meet original equipment specifications for wall thickness and permeation.
  • Tubes and mufflers are designed to meet original equipment specifications for wall thickness.
  • Fittings are designed to couple and seal to eliminate leaks. Trivalent plating is used on steel fittings to enhance corrosion resistance. The fittings conform to original equipment specifications to allow for the proper fit with related air conditioning
  • Welds and crimps meet and exceed original equipment tension specifications.
  • Manufactured to allow flexibility in the hose to conform to engine compartments.
  • O-Rings necessary for installation are included.
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Carquest Premium – A/C Compressor Clutch Relay Connector (Part No.PTA1269)

A/C Compressor Clutch Relay Connector

from

$5.29
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Flowtech – A/C Bracket (Part No.10042FLT)

A/C Bracket

from

$46.49


Product Features:
  • Chrome Plated
  • Show Quality
  • For Custom Installations
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Carquest Premium – A/C Compressor Cut-Out Switch (Part No.ACA1257)

A/C Compressor Cut-Out Switch

from

$30.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – A/C Compressor Cut-Out Switch (Part No.ACA1264)

A/C Compressor Cut-Out Switch

from

$32.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – A/C Compressor Cut-Out Switch (Part No.ACA1282)

A/C Compressor Cut-Out Switch

from

$27.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Factory Air – System Mounted Cycling Pressure Switch (Part No.36674)

System Mounted Cycling Pressure Switch

from

$24.79
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Color coded for easy identification
  • Zinc coated to resist corrosion
  • Vehicle specific applications
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Factory Air – System Mounted Preset Cycling Temperature Switch (Part No.35720)

System Mounted Preset Cycling Temperature Switch

from

$18.05
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Precision engineered
  • OE style connectors
  • Quality contacts ensure proper conductivity
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Factory Air – System Mounted Cycling Pressure Switch (Part No.35751)

System Mounted Cycling Pressure Switch

from

$15.79
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Color coded for easy identification
  • Zinc coated to resist corrosion
  • Vehicle specific applications
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Carquest Premium – AC Pressure Switch (Part No.ACA1253)

AC Pressure Switch

from

$21.99
The Premium CarQuest Vehicle Solutions 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.

Product Features:
  • Designed and manufactured with high quality materials, industry leading electronic components and strict quality controls. Engineered to meet or exceed OE performance and to meet the uncompromising demands of service professionals.
  • Direct fit replacement matches proper OE fit, form, and function and ensures trouble free installation of your A/C Pressure Switch.
  • All units are tested using advanced end-of-line equipment that pressurize the A/C Pressure Switch, confirm proper calibration and functionality, and check for leaks to ensure each A/C Pressure Switch meets manufacturing specifications before packaging.
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Factory Air – System Mounted Low Cut-Out Pressure Switch (Part No.35757)

System Mounted Low Cut-Out Pressure Switch

from

$26.05
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Color coded for easy identification
  • Zinc coated to resist corrosion
  • Vehicle specific applications
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Factory Air – Compressor Mounted High Cut-Out Pressure Switch (Part No.35961)

Compressor Mounted High Cut-Out Pressure Switch

from

$36.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Contains gaskets, O-rings, or seals to properly replace the product
  • Color coded for easy identification
  • Zinc coated to resist corrosion
  • Improved 2 terminal design replacing older 1 terminal switch
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Carquest Standard – Reman GM A6 Compressor w/ Clutch (Part No.DW57087)

Reman GM A6 Compressor w/ Clutch

from

$303.99
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.

Product Features:
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
  • All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
  • All units have new seals, O-rings, gaskets and clutch bearings
  • Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
  • Remanufactured compressors are 100 percent tested to ensure compressor function and noise level meets or exceeds OE specifications
  • Remanufactured compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
  • Remanufactured compressors are individually vacuum and pressure tested to ensure no leaks
  • Remanufactured compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
  • Remanufactured Compressors are built in a ISO9001:2015 Certified facility to ensure consistent quality standards in the Re-manufacturing process
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Carquest Premium – New Compressor with Clutch (Part No.T58223)

New Compressor with Clutch

from

$268.99
CARQUEST New Compressors are designed, manufactured and tested to meet or exceed strict original equipment specifications for superior quality and performance. CARQUEST New Compressors are designed to pump the air conditioning refrigerant through the air conditioning system to provide exceptional climate control for the passenger compartment.

Product Features:
  • New, with Clutch, with R4 Heavy Compressor
  • Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
  • New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
  • The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
  • All new compressors must pass a helium leak test and pump up function test prior to packaging.
  • O-Rings and gaskets necessary for installation are included.
See More

Carquest Standard – Reman GM A6 Compressor w/ Clutch (Part No.DW57094)

Reman GM A6 Compressor w/ Clutch

from

$244.99
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.

Product Features:
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
  • All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
  • All units have new seals, O-rings, gaskets and clutch bearings
  • Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
  • Remanufactured compressors are 100 percent tested to ensure compressor function and noise level meets or exceeds OE specifications
  • Remanufactured compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
  • Remanufactured compressors are individually vacuum and pressure tested to ensure no leaks
  • Remanufactured compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
  • Remanufactured Compressors are built in a ISO9001:2015 Certified facility to ensure consistent quality standards in the Re-manufacturing process
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GM Genuine Parts – Air Conditioning Compressor and Clutch Assembly (Part No.15-20206)

Air Conditioning Compressor and Clutch Assembly

from

$252.99
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).

Product Features:
  • Visual and leak-tested to help ensure the component’s quality and durability
  • The oil separator is part of the compressor and removes oil from the refrigerant to help keep system efficiency
  • GM meets an aggressive engineering requirement for compressor clutch durability and corrosion resistance. Together, these help ensure long-term quality and durability
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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1978 GMC C25 Air Conditioning Parts

Maybe you’re in the middle of a full rebuild of that 1978 GMC C25. Maybe you just need a couple of Air Conditioning Parts. Either way, Advance Auto Parts has 52 different Air Conditioning Parts in our inventory ranging from $1.99 to $478.99. That means you can find the exact parts or products you need to keep that 1978 GMC C25 running smoothly.

Air Conditioning Parts are only as good as their brand. We stock 9 different brands to make sure you have plenty of trusted parts to choose from for your 1978 GMC C25. Carquest Premium, Factory Air, and Carquest are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Air Conditioning Parts for your 1978 GMC C25, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,686 reviews in this category, some of the top rated parts include Ball Bearing with 2.3 stars and Reman GM R4 Heavy Compressor w/ Clutch with 2.0 stars.

So if you’re in the market for aftermarket Air Conditioning Parts to keep your 1978 GMC C25 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Air Conditioning Parts Brands To Make Your 1978 GMC C25 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 GMC C25 demands trusted brand parts and products to keep it running. Many trusted brands of Air Conditioning Parts make up Advance Auto Parts’ inventory, and all are ready to help make your C25 the best it can be. Be sure to browse some of our top Air Conditioning Parts brands and parts.

Popular Factory Air Air Conditioning Parts

We carry Factory Air parts in our stock across AC High Pressure Side Switches and AC Clutch Cycle Switches categories, plus more. For a 1978 GMC C25, our most popular Factory Air Air Conditioning Parts include:
Compressor Mounted High Cut-Out Pressure Switch
from $36.99
(3)
Compressor Mounted High Cut-Out Pressure Switch
AC High Pressure Side Switches
System Mounted Cycling Pressure Switch
from $24.79
(3)
System Mounted Cycling Pressure Switch
AC Clutch Cycle Switches
System Mounted Cycling Pressure Switch
from $15.79
(3)
System Mounted Cycling Pressure Switch
AC Clutch Cycle Switches

FAQs for 1978 GMC C25 Air Conditioning Parts

What are the most purchased Air Conditioning Parts for the 1978 GMC C25?

Out of 52 Air Conditioning Parts for the 1978 GMC C25, the most popular in our inventory are:
A/C New; w/ Clutch; w/ R4 Lightweight Compressor
from $261.99
(10)
A/C New; w/ Clutch; w/ R4 Lightweight Compressor
AC Compressor With Clutch
Compressor Mounted High Cut-Out Pressure Switch
from $36.99
(10)
Compressor Mounted High Cut-Out Pressure Switch
AC High Pressure Side Switches
Cap & Valve A/C System Seal Kit
from $16.99
(6)
Cap & Valve A/C System Seal Kit
AC Line O-Rings

What are the top-rated 1978 GMC C25 Air Conditioning Parts?

Top-rated Air Conditioning Parts for your 1978 GMC C25 based on customer reviews/ratings are:
Ball Bearing
from $22.29
(4)
Ball Bearing
“Great replacement bearing”
Reman GM R4 Heavy Compressor w/ Clutch
from $195.99
(4)
Reman GM R4 Heavy Compressor w/ Clutch
“Very good compressor for the money!”
Compressor Mounted Low Cut-Out Pressure Switch
from $34.49
(3)
Compressor Mounted Low Cut-Out Pressure Switch
“Fit and wAS EASE TO INSTALL.”