1978 Chevrolet G20 Air Conditioning Parts

More 1978 Chevrolet G20 Air Conditioning Parts

Find your specific 1978 Chevrolet G20 original or aftermarket Air Conditioning Parts below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 1978 Chevrolet G20 Air Conditioning Parts

Factory Air – Green Round O-Ring (Part No.24650)

Green Round O-Ring

from

$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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National – Bearings (Part No.907257)

Bearings

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$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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Factory Air – Reman GM Frigidaire/Harrison A6 Clutch Assembly w/ Coil (Part No.48284)

Reman GM Frigidaire/Harrison A6 Clutch Assembly w/ Coil

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$119.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All mounting hardware included
  • All pulleys and hubs are machined and trued to ensure an even surface
  • Twelve point hub weld
  • Coated to prevent corrosion
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(1 reviews)
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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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Carquest Premium – A/C Clutch Cycle Switch (Part No.ACA1531)

A/C Clutch Cycle Switch

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$16.79
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 – HVAC Control Switch (Part No.HKA1014)

HVAC Control Switch

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$36.49
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.ACA1256)

A/C Compressor Cut-Out Switch

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$20.79
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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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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(2 reviews)
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Dorman – 30 AMP 12 Volt 5 Pin Universal Relay (Part No.88069)

30 AMP 12 Volt 5 Pin Universal Relay

from

$14.99
Accessory Power Relays use a small current to activate an internal switch that allows a larger current to flow to a particular load. All our Accessory Power Relays are constructed of high quality materials for durability.

Product Features:
  • No special tools required for installation
  • Easy to install
  • Wiring diagram included
  • Manufactured to strict engineering quality standards
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(10 reviews)
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Carquest Premium – A/C Accumulator Tube (Part No.T34207)

A/C Accumulator Tube

from

$10.79
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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Carquest Premium – A/C TXV O-Ring Expansion Valve (Part No.T38683)

A/C TXV O-Ring Expansion Valve

from

$21.99
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.

Product Features:
  • The bodies of these expansion valves are machined from a single block of aluminum or brass metal.
  • Each expansion valve has settings for tonnage and superheat based on the vehicle specifications.
  • Each expansion valve 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.
  • O-Rings necessary for installation are included.
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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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(28 reviews)
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KAI – A/C Accumulator (Part No.ACM010308)

A/C Accumulator

from

$29.99
New Standard Replacement A/C Accumulator, With Drier

Product Features:
  • With Drier
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – A/C Accumulator, V8 Engine, Factory R-134 (Part No.ACM010044)

A/C Accumulator, V8 Engine, Factory R-134

from

$30.99
New Standard Replacement A/C Accumulator, V8 Engine, Factory R134A

Product Features:
  • V8 Engine, Factory R134A
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Carquest Standard – Reman GM R4 Heavy Compressor w/ Clutch (Part No.DW57231)

Reman GM R4 Heavy Compressor w/ Clutch

from

$195.99
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
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(4 reviews)
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Carquest Standard – Reman GM R4 Heavy Compressor w/ Clutch (Part No.DW57227)

Reman GM R4 Heavy Compressor w/ Clutch

from

$184.99
Carquest Standard compressors offer reliable, long-lasting performance for a leak-free, dependable repair.

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
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ACDelco – Multi-Purpose Pigtail (Part No.PT1357)

Multi-Purpose Pigtail

from

$37.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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(2 reviews)
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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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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 – Sealing Washer Kit (Part No.24334)

Sealing Washer Kit

from

$12.29
Includes O-Ring; Compatible with R12 And R134A; High quality construction; Universal applications
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(1 reviews)
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ACDelco – A/C Pressure Switch (Part No.R1054321623ACD)

A/C Pressure Switch

from

$79.94
ACDelco is a global leader in automotive replacement parts and related services and offers quality aftermarket products for most makes and models, including General Motors, Ford, Chrysler, Toyota and Honda. ACDelco has over 100 years of experience in the automotive industry and is a brand of GM Customer Care and After sales, a division of General Motors.
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GM Genuine Parts – Air Conditioning Refrigerant Pressure Switch (Part No.15-50812)

Air Conditioning Refrigerant Pressure Switch

from

$59.99
GM Genuine Parts HVAC Pressure Switches are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These HVAC pressure switches are a system protective switch that cuts off power to A/C components if the pressure in the system is too low. 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:
  • Protective switch that discontinues power to A/C components when system pressures are too low
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • Original equipment parts are designed to work with your GM vehicle safety systems — aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
  • GM regularly updates production and service part designs to integrate new materials and technologies
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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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(6 reviews)
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Carquest Premium – A/C Compressor Clutch Connector (Part No.PTA1658)

A/C Compressor Clutch Connector

from

$11.99
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.

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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Carquest Premium – A/C New; w/ Clutch; w/ HD6 Compressor (Part No.T58954)

A/C New; w/ Clutch; w/ HD6 Compressor

from

$342.99
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.
  • O-Rings and gaskets necessary for installation are included.
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Carquest Premium – New Compressor with Clutch, GM R4 Lightweight (Part No.T58240)

New Compressor with Clutch, GM R4 Lightweight

from

$307.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All compressors go through sophisticated testing and leak test processes
  • Includes specific electrical connector to eliminate splicing
  • For ease of installation this compressor includes all gaskets, O-rings or sealing washers needed to repair your car
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function, and durability
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KAI – A/C Compressor, Oe Style A6 Engine (Part No.ACP011046OES)

A/C Compressor, Oe Style A6 Engine

from

$1079.99
New OEM Replacement A/C Compressor, Style A6 Engine

Product Features:
  • Style A6 Engine
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – A/C Compressor, Gm, R4, 6 Groove (Part No.ACP010027)

A/C Compressor, Gm, R4, 6 Groove

from

$484.99
New Standard Replacement A/C Compressor, GM, R4, 6 Groove

Product Features:
  • GM, R4, 6 Groove
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More
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Popular 1978 Chevrolet G20 Air Conditioning Parts Categories

AC Compressor With Clutch
AC Compressor With Clutch
AC Compressor Without Clutch
AC Compressor Without Clutch
AC Clutch
AC Clutch
Air Conditioning Relays
Air Conditioning Relays
AC Line O-Rings
AC Line O-Rings
AC Relay Connectors
AC Relay Connectors
AC Clutch Coil Connectors
AC Clutch Coil Connectors
Accumulator and Receiver Driers
Accumulator and Receiver Driers
AC Evaporator Repair Kits
AC Evaporator Repair Kits
AC Clutch Cycle Switches
AC Clutch Cycle Switches
Expansion Valve and Orifice Tubes
Expansion Valve and Orifice Tubes
AC High Pressure Side Switches
AC High Pressure Side Switches
AC Compressor Cut-Off Switches
AC Compressor Cut-Off Switches
AC Compressor Switch Connectors
AC Compressor Switch Connectors
AC Control Switches
AC Control Switches
AC Accumulator Tubes
AC Accumulator Tubes
AC Compressor Gaskets
AC Compressor Gaskets
AC Compressor Thrust Bearings
AC Compressor Thrust Bearings
AC Compressor Seals
AC Compressor Seals

1978 Chevrolet G20 Air Conditioning Parts

Maybe you’re in the middle of a full rebuild of that 1978 Chevrolet G20. Maybe you just need a couple of Air Conditioning Parts. Either way, Advance Auto Parts has 50 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 Chevrolet G20 running smoothly.

Air Conditioning Parts are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 1978 Chevrolet G20. 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 Chevrolet G20, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 2,502 reviews in this category, some of the top rated parts include A/C Filter Drier with 4.5 stars and Ball Bearing with 2.3 stars.

So if you’re in the market for aftermarket Air Conditioning Parts to keep your 1978 Chevrolet G20 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 Chevrolet G20 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 Chevrolet G20 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 G20 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 Compressor Cut-Off Switches categories, plus more. For a 1978 Chevrolet G20, 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
Compressor Mounted Low Cut-Out Pressure Switch
from $34.49
(3)
Compressor Mounted Low Cut-Out Pressure Switch
AC Compressor Cut-Off Switches
Compressor Mounted High Cut-Out Pressure Switch
from $36.99
(10)
Compressor Mounted High Cut-Out Pressure Switch
AC High Pressure Side Switches

Top 1978 Chevrolet G20 Air Conditioning Parts from Carquest Premium

Carquest Premium products are another trusted brand when it comes to Air Conditioning Parts for your 1978 Chevrolet G20. Popular Carquest Premium parts include:
A/C White Orifice Tube
from $2.99
(97)
A/C White Orifice Tube
Expansion Valve and Orifice Tubes
Severe Temp Automatic Adjusting Orifice Tube
from $15.99
(97)
Severe Temp Automatic Adjusting Orifice Tube
Expansion Valve and Orifice Tubes
A/C Standard Temp Automatic Adjusting Orifice Tube
from $15.79
(28)
A/C Standard Temp Automatic Adjusting Orifice Tube
Expansion Valve and Orifice Tubes

FAQs for 1978 Chevrolet G20 Air Conditioning Parts

What are the most purchased Air Conditioning Parts for the 1978 Chevrolet G20?

Out of 50 Air Conditioning Parts for the 1978 Chevrolet G20, 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
Cap & Valve A/C System Seal Kit
from $16.99
(6)
Cap & Valve A/C System Seal Kit
AC Line O-Rings
Reman GM R4 Heavy Compressor w/ Clutch
from $195.99
(4)
Reman GM R4 Heavy Compressor w/ Clutch
AC Compressor Without Clutch

What are the top-rated 1978 Chevrolet G20 Air Conditioning Parts?

Top-rated Air Conditioning Parts for your 1978 Chevrolet G20 based on customer reviews/ratings are:
A/C Filter Drier
from $22.99
(4)
A/C Filter Drier
“Exact fit for my needs.”
Ball Bearing
from $22.29
(4)
Ball Bearing
“Great replacement bearing”
A/C New; w/ Clutch; w/ R4 Heavy Compressor
from $274.99
(3)
A/C New; w/ Clutch; w/ R4 Heavy Compressor
“Be aware this is a new different design not for a rear mount design on a 1981 corvette the back has a valve on the compressor that blocks the rear bra”