Cadillac STS Air Conditioning Parts

Your One-Stop Shop For Trusted Cadillac STS Air Conditioning Parts

If you’re in search of Cadillac STS Air Conditioning Parts aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 60 Air Conditioning Parts from top brands with prices ranging from $4.49 to $552.99.

Beyond great prices, we stock trusted brands manufacturing all types of Air Conditioning Parts for your Cadillac STS. Of the 8 OEM and aftermarket parts brands we carry, some of the most popular are Factory Air, Dorman, and Carquest.

And don’t forget to read customer reviews across all Air Conditioning Parts categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Air Conditioning Parts have to cost top dollar, and we prove it. Browse our top Cadillac STS Air Conditioning Parts below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Cadillac STS Air Conditioning Parts

Factory Air – Harness Connector (Part No.37227)

Harness Connector

from

$25.49
OE style connectors; Molded plastic construction; Quality contacts ensure proper conductivity; Universal applications
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Factory Air – Compressor Mounted Low Cut-Out Pressure Switch (Part No.35973)

Compressor Mounted Low Cut-Out Pressure Switch

from

$31.49
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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ACDelco – Black Multi-Purpose Pigtail (Part No.PT2647)

Black Multi-Purpose Pigtail

from

$31.99
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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Carquest Premium – AC Pressure Sensor (Part No.ACA1755)

AC Pressure Sensor

from

$42.99
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 Sensor reports system pressures to the on-board computer, in turn allowing the computer to properly and efficiently control the compressor, fans and system levels. An improperly functioning A/C Pressure Sensor will provide erratic or inaccurate readings to on-board computers severely affecting system performance and function. Without reliable and accurate data from a properly functioning A/C Pressure Sensor, on-board computers are unable to protect the safety of critical components and the system as a whole 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 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 Sensor.
  • All units are helium leak tested on fully automated mass spectrometer equipment before end-of-line testing.
  • All units are tested using automated end-of-line testing equipment that pressurizes the A/C Pressure Sensor and checks full-spectrum functionality and electrical output to ensure each A/C Pressure Sensor meets manufacturing specifications before packaging
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Carquest Premium – A/C Compressor Switch Connector (Part No.PTA1329)

A/C Compressor Switch Connector

from

$17.79
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.

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 Compressor Relay Connector (Part No.PTA1171)

A/C Compressor Relay Connector

from

$61.99
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 Condenser and Receiver Drier Assembly (Part No.2230)

A/C Condenser and Receiver Drier Assembly

from

$173.99
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 specificat

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
  • This Carquest condenser has a drier attached to it with an interior desiccant bag which will provide optimal moisture removal in the a/c system to maximize cooling performance.
  • 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
  • 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 and
  • 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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Factory Air – Compressor Mounted Low Cut-Out Pressure Switch (Part No.35970)

Compressor Mounted Low Cut-Out Pressure Switch

from

$34.49
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 Premium – A/C Evaporator Parallel Flow (Part No.T64022)

A/C Evaporator Parallel Flow

from

$159.99
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.

Product Features:
  • The design and manufacture of the evaporators result in uniform refrigerant distribution with optimal flow for improved performance and maximum heat transfer.
  • The evaporators are constructed to offer a lightweight, compact design that will fit easily within the engine compartment.
  • The surface treatment on each part ensures optimum water drainage to prevent mold and odors in the system.
  • The evaporators are 100% tested to meet or exceed original equipment specifications. Each part is helium tested to ensure no leaks.
  • O-Rings and gaskets necessary for installation are included.
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Carquest Premium – Brake Pressure Modulator Sensor Connector (Part No.PTA1017)

Brake Pressure Modulator Sensor Connector

from

$28.49
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.

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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DENSO – A/C Expansion Valve (Part No.R1045922766ND)

A/C Expansion Valve

from

$45.98
Denso manufactures an A/C Expansion Valve that is the same quality fit and performance of the OE Expansion Valve it replaces.

Product Features:
  • OEM Quality and Direct fit Application
  • Designed to the exact OEM specifications
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Carquest Premium – Multi Purpose Relay (Part No.RAA1237)

Multi Purpose Relay

from

$19.99
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 Discharge Line Hose Assembly (Part No.T56497)

A/C Discharge Line Hose Assembly

from

$65.99
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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Factory Air – Cap and Valve A/C System Seal Kit (Part No.26778)

Cap and Valve A/C System Seal Kit

from

$41.99
Compatible with both R12 And R134a refrigerants; All the seals needed to complete the job; SUV And rear air applications; Application specific
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Carquest Premium – Door Module Connector (Part No.PTC2523)

Door Module Connector

from

$61.99
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 to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • CarQuest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
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KAI – A/C Desiccant Element (Part No.ARD010152)

A/C Desiccant Element

from

$9.99
New Standard Replacement A/C Receiver Drier/Desiccant Element

Product Features:
  • 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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ACDelco – Black Multi-Purpose Pigtail (Part No.PT2830)

Black Multi-Purpose Pigtail

from

$48.49
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
See More

Carquest Premium – Multi Purpose Relay (Part No.RAA1799)

Multi Purpose Relay

from

$29.49
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 – AC Pressure Switch (Part No.ACA1334)

AC Pressure Switch

from

$32.99
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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ACDelco – 25881844 GM Original Equipment Engine Cooling Fan Resistor (Part No.G5040584486ACD)

25881844 GM Original Equipment Engine Cooling Fan Resistor

from

$80.17
ACDelco GM Original Equipment Engine Cooling Fan Resistors provide for stepped voltage drops to provide high and low speeds for the electric motor cooling fan. This original equipment engine cooling fan resistor is a GM-recommended replacement for your vehicle’s original components and has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • 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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Dorman – Body Bolt – M6-1.0 X 25mm (Part No.963-232D)

Body Bolt - M6-1.0 X 25mm

from

$4.49
These bolts are manufactured using durable materials and corrosion-tested to ensure required strength and longevity.

Product Features:
  • Durable materials – manufactured to specific thread tolerance standards
  • Corrosion tested – hardware undergoes salt spray testing to ensure corrosion resistance
  • Multipurpose usefulness – can be used in a variety of applications, from auto to home
  • Trustworthy quality – backed by team of professional engineers and quality control specialists in the United States
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Carquest Premium – A/C Suction Line Hose Assembly (Part No.T56561)

A/C Suction Line Hose Assembly

from

$76.99
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 Clutch Cycle Switch Connector (Part No.PTA1091)

A/C Clutch Cycle Switch Connector

from

$34.49
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.

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
See More

DENSO – A/C Condenser (Part No.R1030688017ND)

A/C Condenser

from

$215.34
Like all DENSO First Time Fit® A/C components, our condensers are designed and manufactured to integrate seamlessly with the vehicle’s original air conditioning system. DENSO condensers match up to OE condensers at every benchmark. Multiflow, subcooling, and the latest Ssrpentine condenser styles are offered to provide the optimum configuration for each application. Premium aluminum construction improves reliability, resisting corrosion to avoid expensive system leaks, while the superior fin wave design offers higher heat transfer and maximum refrigerant condensation. Heat exchanger cores are specially designed to shed airborne material buildup, allowing the A/C system to operate at peak efficiency with minimal maintenance, assuring years of trouble-free service.

Product Features:
  • Zinc diffusion layer improves corrosion resistance
  • Unique fin design to minimize airflow blockage
  • High performance design reduces the required compressor power
  • System Efficiency: Superior fin waves provide a higher heat transfer coefficient and full condensation.
  • Engineered to Perfection: OE quality engineered for unparalleled performance
  • Exact Fit: Condensers install with speed and ease
  • Reduces required compressor power, resulting improved fuel economy
  • Restores A/C performance to as-new condition
  • First Time Fit® assures bolt-in replacement; no brackets or adapters
  • Greater Durability: Pure aluminum construction provides greater resistance for corrosion
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Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26812)

O-Ring & Gasket A/C System Seal Kit

from

$12.29
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
  • Application specific
  • SUV and rear air applications
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Air Conditioning Parts Brands You Can Trust For Your Cadillac STS

8 trusted brands of Air Conditioning Parts line our shelves, ready to help keep your Cadillac STS running smooth. Below are some of the most popular brands and their top Air Conditioning Parts offerings:

Popular ACDelco Air Conditioning Parts

ACDelco products for the Cadillac STS span several categories. Some of the highest-rated ACDelco Air Conditioning Parts that will fit your Cadillac STS are:
Multi-Purpose Pigtail
from $37.99
(2)
Multi-Purpose Pigtail
AC Clutch Coil Connectors

Most Purchased Cadillac STS Air Conditioning Parts from Factory Air

When you buy the most frequently purchased Factory Air brand Air Conditioning Parts, you can be confident it will be the right part for your Cadillac STS. Here are the Factory Air Air Conditioning Parts Advanced Auto customers buy the most:
Cap & Valve A/C System Seal Kit
from $17.99
(29)
Cap & Valve A/C System Seal Kit
AC Caps and Valve Core Kits
Cap & Valve A/C System Seal Kit
from $14.99
(26)
Cap & Valve A/C System Seal Kit
AC Caps and Valve Core Kits
RELAY - ACCESSORY
from $27.49
(4)
RELAY – ACCESSORY
Air Conditioning Relays

FAQs for Cadillac STS Air Conditioning Parts

What are the most purchased Air Conditioning Parts for the Cadillac STS?

Out of 60 Air Conditioning Parts for the Cadillac STS, the most popular in our inventory are:
Body Bolt - M6-1.0 X 25mm
from $4.49
This product is not rated
Body Bolt – M6-1.0 X 25mm
AC Hose Bolt
A/C Desiccant Bag Kit
from $38.99
(7)
A/C Desiccant Bag Kit
AC Receiver Drier Desiccant Elements
A/C Condenser Fan Motor Relay
from $18.99
(3)
A/C Condenser Fan Motor Relay
Air Conditioning Relays

What are the top-rated Cadillac STS Air Conditioning Parts?

Top-rated Air Conditioning Parts for your Cadillac STS based on customer reviews/ratings are:
Compressor Mounted Low Cut-Out Pressure Switch
from $31.49
(14)
Compressor Mounted Low Cut-Out Pressure Switch
“works for 99 tahoe”
Compressor Mounted High Cut-Out Pressure Switch
from $36.99
(10)
Compressor Mounted High Cut-Out Pressure Switch
“Worked Well”
Compressor Mounted High Cut-Out Pressure Switch
from $34.49
(5)
Compressor Mounted High Cut-Out Pressure Switch
“The new a/c compressor wanted me to use my old switch. I couldn’t get it out, so I bought this one. I wouldn’t have used the old one anyway. It worked”