2003 Cadillac CTS Engine Cooling Parts

Essential 2003 Cadillac CTS Engine Cooling Parts

Imperial – Electric Fan – 12" Diameter (Part No.226112)

Electric Fan - 12" Diameter

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$94.99
Electric fan with 12″ diameter. Imperial electric fans are reversible for push or pull operation and are designed with a thin, aerodynamic profile for applications with limited space.

Product Features:
  • Rapid-Cool® Thin-Line electric fans
  • 12″ Diameter
  • 800 CFM
  • Use as a pusher or puller fan
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ACDelco – 24447061 GM Original Equipment Engine Coolant Thermostat Housing O-Ring (Part No.G4030209955ACD)

24447061 GM Original Equipment Engine Coolant Thermostat Housing O-Ring

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$8.31
An ACDelco GM Original Equipment Engine Coolant Thermostat O-Ring is a GM-recommended replacement for your vehicle’s original component. It seals the gap between the exterior of the thermostat housing and the exterior of the engine. This original equipment engine coolant thermostat O-Ring has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Seals the gap between the exterior of the thermostat housing and the exterior of the engine to help prevent leakage
  • 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 – Engine Cooling Fan Module (Part No.ACC1313)

Engine Cooling Fan Module

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$94.99
All modern vehicles consist of several independent operating systems controlled by a main system processor with independent sub-processors. The sub-processors provide class 2 serial information data to the main processor while handling the operation of the system and carry the circuit load to protect the main operating system. When replacing any level processor programming may be needed to enter the unit into the vehicles main operating system.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – Radiator Cap: 15 PSI (Part No.10248)

Radiator Cap: 15 PSI

from

$14.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
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ACDelco – Water Pump O-Ring (Part No.G3059223536ACD)

Water Pump O-Ring

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$15.58
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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Dorman – Engine Heater Hose Assembly (Part No.626-536)

Engine Heater Hose Assembly

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$69.99
This engine water pump inlet tube is designed to match the fit and function of the original tube on specified applications, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this engine water pump inlet tube is designed to match the fit and function of the original tube on specified applications.
  • Restores functionality – reliable replacement for an original part that has failed due to corrosion from heat and water cycling.
  • 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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ACDelco – GM Original Equipment Engine Coolant Thermostat (Part No.G4000232649ACD)

GM Original Equipment Engine Coolant Thermostat

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$43.80
An ACDelco GM Original Equipment Engine Coolant Thermostat is a temperature controlled valve located in the engine coolant outlet to, or the inlet from, the radiator, and is a GM-recommended replacement for your vehicle’s original component. It controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. This original equipment engine coolant thermostat has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Control the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature
  • 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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Permatex – Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ (Part No.22071)

Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ

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$6.99
Permatex Water Pump & Thermostat RTV Silicone Gasket Maker is a noncorrosive, sensor-safe RTV silicone gasket material formulated for water pumps and thermostat housings. Permatex Water Pump & Thermostat has the highest water-glycol resistance available in an RTV silicone.

Product Features:
  • Sensor-safe, noncorrosive RTV silicone gasket material
  • Formulated specifically for water pumps and thermostat housings
  • Highest water-glycol resistance available in RTV silicone
  • Superior adhesion and flexibility
  • Can be used as a gasket maker or dressing
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GM Genuine Parts – Engine Coolant Thermostat Water Inlet Assembly (Part No.15-11057)

Engine Coolant Thermostat Water Inlet Assembly

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$77.99
GM Genuine Parts Engine Coolant Thermostat Housing Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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:
  • 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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Delphi – Engine Coolant Temperature Sensor (Part No.TS10076)

Engine Coolant Temperature Sensor

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$50.99
Delphi temperature sensors are built with the latest OE technology; Delphi temperature sensors use durable, one-piece design; Delphi temperature sensors are impervious to electrical noise and interference.

Product Features:
  • Delphi temperature sensors deliver accurate readings and optimal performance
  • Delphi’s one-piece design and automated production process eliminates internal connectors and failure points
  • Each sensor is electrically insulated to eliminate interference from other components in the vehicle
  • Delphi temperature sensors are impervious to electrical noise and interference
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Permatex – The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ (Part No.34310)

The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ

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$38.99
Permatex’s The Right Stuff 1 Minute Series offers the fastest return to service in just 1 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 1 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 1 minute
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Dorman – Water Pipe (Part No.G2025947781DOR)

Water Pipe

from

$76.25
Re-engineered to address common failure points in the original equipment, Dorman’s Coolant Water Outlet has improved durability and resistance. It withstands the extreme changes in temperature that frequently cause housing to become brittle, crack and leak. This is more than a replacement; it’s an upgrade. Maintain the steady flow of coolant and lessen the chances of overheating.

Product Features:
  • Direct replacement for a proper fit every time
  • Hoses slide on for easy installation
  • High-quality plastic or metal construction
  • Includes all hardware necessary for a complete repair (where applicable)
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GM Genuine Parts – Engine Coolant Outlet O-Ring (Part No.15-32584)

Engine Coolant Outlet O-Ring

from

$6.29
GM Genuine Parts Multi Purpose O-Rings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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:
  • 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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Dorman – Engine Coolant Water Outlet With Sensor (Part No.902-2134)

Engine Coolant Water Outlet With Sensor

from

$101.99
This replacement engine coolant water outlet is engineered to match the fit and durability of the stock engine coolant water outlet on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant water outlet directly replaces the original water outlet on specified vehicle years, makes and models
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in replacement water outlets
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Felpro – Engine Water Pump Gasket (Part No.36110)

Engine Water Pump Gasket

from

$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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Felpro – Engine Water Pump Gasket (Part No.35635)

Engine Water Pump Gasket

from

$6.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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Felpro – O-RING (Part No.35749)

O-RING

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$4.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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MAHLE Original – Engine Coolant Thermostat Seal (Part No.C32213)

Engine Coolant Thermostat Seal

from

$6.49
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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Mahle – Thermostat Seal / O- (Part No.G4030330059MAH)

Thermostat Seal / O-

from

$4.62
The Mahle Engine Coolant Thermostat O-Ring is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Seals the thermostat housing and helps prevent coolant from leaking from the engine for proper engine temperature
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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Victor Reinz – Engine Coolant Thermostat Housing Gasket (Part No.71-14093-00)

Engine Coolant Thermostat Housing Gasket

from

$6.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Mr. Gasket – Thermocap Radiator Cap (Part No.2471S)

Thermocap Radiator Cap

from

$47.99
Knowing your coolant temperature can help to prevent burn injuries. Thermocap Cap, with its built-in calibrated thermometer, indicates the coolant temperature. This is useful information prior to cap removal. Never attempt to remove Thermocap Cap when the coolant temperature is very hot. The escaping hot coolant and steam may burn you. Reclamation valve works great with your coolant recovery system. Your radiator can reclaim coolant from your overflow bottle. Wide 30 degree to 270 degree F temperature range. Calibrated in centigrade and Fahrenheit. Color-coded temperature ranges.

Product Features:
  • Indicates Coolant Temperature
  • Helps to Prevent Injuries from coolant or steam burns
  • Integrated Coolant Reclamation Valve
  • Improves Underhood Appearance
  • Fahrenheit and centigrade readings
  • Various valve pressures available
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Mr. Gasket – Thermocap Radiator Cap (Part No.2471B)

Thermocap Radiator Cap

from

$46.99
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.

Product Features:
  • Indicates coolant temperature
  • Helps prevent coolant injuries
  • Fahrenheit and centigrade readings
  • Color-coded temperature ranges
  • Integrated coolant reclamation valve
  • Improves under-hood appearance
  • Chromed crown with a colored trim ring
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Koyo Cooling – Koyo Cooling Radiator (Part No.G1000583572KCS)

Koyo Cooling Radiator

from

$245.33
Plastic Tank / Aluminum Core Radiator Koyo radiators are available in plastic tank and aluminum core. The Nocolok brazing line keeps the highest quality standards, bringing you superior products you can rely on. The Koyo Cooling radiator has been engineered to the highest standards and incorporates application specific mounting locations for all fan shrouds, inlet-outlet hoses and top-bottom mounting pins, ensuring quick and pain-free installs.

Product Features:
  • All Aluminum Core and Plastic Tank
  • OE Style mounting brackets and hose connections
  • Integrated transmission oil cooler when applicable
  • Compact and lightweight
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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.813055)

Radiator: With Transmission Oil Cooler

from

$281.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
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Carquest Premium – Engine Water Pump: Gasket/Seals Included (Part No.T1235)

Engine Water Pump: Gasket/Seals Included

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$124.99
This premium water pump uses new high quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.

Product Features:
  • Built to meet or exceed OE fit, form and function.
  • All components necessary for installation are supplied with pump
  • 100% tested for reliable performance
  • Follow all enclosed instructions to maximize pump life and validate warranty
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Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T6057)

Engine Water Pump: New, Gasket/Seals Included

from

$258.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
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Dorman – Radiator Fan Assembly: Dual, Cost Effective & Reliable (Part No.620-955)

Radiator Fan Assembly: Dual, Cost Effective & Reliable

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$639.99
This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.

Product Features:
  • Ideal replacement – this engine cooling fan assembly was precision-engineered to match the fit and performance of the stock radiator fan assembly on specific vehicles.
  • Complete package – assembly is designed with the same materials and components as the original part.
  • Quality assured – motors are tested in laboratory settings to ensure performance
  • Cost effective and reliable – trustworthy manufacturing for far less than same part at the dealership
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Imperial – Electric Fan – 14" Diameter (Part No.226114)

Electric Fan - 14" Diameter

from

$99.99
Product Features:
  • Motors built and tested to quality specifications
  • 14 in. universal fit reversible fan
  • 1250 CFM
  • UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
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2003 Cadillac CTS Engine Cooling Parts

Maybe you’re in the middle of a full rebuild of that 2003 Cadillac CTS. Maybe you just need a couple of Engine Cooling Parts. Either way, Advance Auto Parts has 42 different Engine Cooling Parts in our inventory ranging from $1.49 to $639.99. That means you can find the exact parts or products you need to keep that 2003 Cadillac CTS running smoothly.

Engine Cooling Parts are only as good as their brand. We stock 18 different brands to make sure you have plenty of trusted parts to choose from for your 2003 Cadillac CTS. Permatex, Carquest Premium, and Imperial 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 Engine Cooling Parts for your 2003 Cadillac CTS, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,003 reviews in this category, some of the top rated parts include Adjustable Thermostatic Fan Control with 3.4 stars and Thermocap Radiator Cap with 3.2 stars.

So if you’re in the market for aftermarket Engine Cooling Parts to keep your 2003 Cadillac CTS 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!

Engine Cooling Parts Brands To Make Your 2003 Cadillac CTS Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 Cadillac CTS demands trusted brand parts and products to keep it running. Many trusted brands of Engine Cooling Parts make up Advance Auto Parts’ inventory, and all are ready to help make your CTS the best it can be. Be sure to browse some of our top Engine Cooling Parts brands and parts.

Popular Motorad Engine Cooling Parts

We carry Motorad parts in our stock across Thermostat and Water Outlet Assemblies categories, plus more. For a 2003 Cadillac CTS, our most popular Motorad Engine Cooling Parts include:
Integrated Thermostat Housing: With Seal, 198 Degrees
from $29.99
(2)
Integrated Thermostat Housing: With Seal, 198 Degrees
Thermostat and Water Outlet Assemblies

FAQs for 2003 Cadillac CTS Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the 2003 Cadillac CTS?

Out of 42 Engine Cooling Parts for the 2003 Cadillac CTS, the most popular in our inventory are:
Radiator Cap: 15 PSI
from $14.99
(59)
Radiator Cap: 15 PSI
Coolant Reservoir Caps
Adjustable Thermostatic Fan Control
from $22.99
(35)
Adjustable Thermostatic Fan Control
Engine Cooling Fan Controllers
Electric Fan - 12" Diameter
from $94.99
(38)
Electric Fan – 12" Diameter
Radiator Fan Motors

What are the top-rated 2003 Cadillac CTS Engine Cooling Parts?

Top-rated Engine Cooling Parts for your 2003 Cadillac CTS based on customer reviews/ratings are:
Adjustable Thermostatic Fan Control
from $55.99
(33)
Adjustable Thermostatic Fan Control
“I used this fan control on my 2006 pt cruiser. It’s simple to install and works great. I’m going to get another one for my 1999 jeep Cherokee.”
Thermocap Radiator Cap
from $47.99
(17)
Thermocap Radiator Cap
“Worth the money if only for the looks. And will tell you the temp outside”
Electric Fan - 14" Diameter
from $99.99
(14)
Electric Fan – 14" Diameter
“Fit fine. Easy install. Cools the car.”