2003 GMC Sierra 3500 Engine Cooling Parts

Essential 2003 GMC Sierra 3500 Engine Cooling Parts

Dorman – Panel Trim Retainer – Interior – Ford (sold by each) (Part No.700-398)

Panel Trim Retainer - Interior - Ford (sold by each)

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$1.29
All our Multi-Purpose Retainers are made of high quality materials for long-lasting durability. Offering a full line of Multi-Purpose Retainers for a wide range of applications.

Product Features:
  • Durable nylon design for a long service life
  • Also suitable for a broad variety of industrial and commercial uses
  • Conveniently packaged in a variety of piece counts
  • Direct replacement Retainers available (where applicable) to ensure a proper fit
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ACDelco – GM Original Equipment Engine Cooling Fan Clutch (Part No.G5010207019ACD)

GM Original Equipment Engine Cooling Fan Clutch

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$226.61
ACDelco GM Original Equipment Engine Cooling Fan Clutches control the speed of the radiator fan based on the temperature of the air after it passes through the radiator fins. This original equipment engine cooling fan clutch 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:
  • Quiets noisy cooling fans with stuck fan clutches, restores fuel economy
  • 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 Water Pump: New, Gasket/Seals Included (Part No.T5097)

Engine Water Pump: New, Gasket/Seals Included

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$128.99
Carquest Premium drive motor inverter cooler water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, impeller, controller, gaskets, and seals are designed for long-lasting service life. These electric water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium auxiliary water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

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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Dorman – Rivet-Push In-Hole Diameter .500 In-Head Diameter 1 In-Length .900 In (Part No.45813)

Rivet-Push In-Hole Diameter .500 In-Head Diameter 1 In-Length .900 In

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$1.99
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:
  • Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
  • Quality material – this retainer is made of durable material for long-lasting service
  • Versatile design – this retainer is suitable for a variety of automotive uses
  • Excellent value – this part offers original equipment quality at a competitive cost
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KAI – Radiator Support (Part No.GM1225259)

Radiator Support

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$329.99
New Standard Replacement Radiator Support, Models With 8.1 Liter V8 Gas And 2005 Models With 6.6 Liter V8 Turbodiesel

Product Features:
  • Models With 8.1 Liter V8 Gas And 2005 Models With 6.6 Liter V8 Turbodiesel, Made Of Steel
  • 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 Premium – Coolant Temperature Sensor (Part No.WTC1001)

Coolant Temperature Sensor

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$22.99
Approved materials for increased durability in even the most extreme temperatures. All MotoRad Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
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Dorman – Thermostat Assembly: Includes Housing, Thermostat, and Gasket, 186 Degrees (Part No.902-700)

Thermostat Assembly: Includes Housing, Thermostat, and Gasket, 186 Degrees

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$33.99
This replacement engine coolant thermostat housing assembly is engineered to match the fit and durability of the stock housing assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing assembly 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 thermostat housing assemblies
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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.438139)

Radiator: With Transmission Oil Cooler

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$479.99
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 engineered with integrated ribbing for added strength 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
  • Oil cooler designs meet or exceed OE standards, keeping the vehicle¿s engine and transmission performing at optimal conditions
  • OEM grade, premium fittings for transmission or engine oil coolers (where applicable)
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ACDelco – Water Pipe Gasket (Part No.G2048429977ACD)

Water Pipe Gasket

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$10.67
Water Pipe Gasket

Dorman – Thermostat Bypass Pipe (Part No.902-901)

Thermostat Bypass Pipe

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$55.99
This thermostat bypass pipe is designed to match the fit and function of the original pipe on specified applications, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this thermostat bypass pipe is designed to match the fit and function of the original pipe on specified applications
  • Restores functionality – reliable replacement for an original part that is leaking or has failed due to corrosion
  • 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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Dorman – Coolant Bypass Tube O-Ring Kit (Part No.926-424)

Coolant Bypass Tube O-Ring Kit

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$19.29
This coolant O-ring kit contains all the necessary O-rings to replace or repair the engine coolant pipe on specified vehicles.

Product Features:
  • Ideal replacement – this coolant O-ring kit matches the factory O-rings to ensure a complete and reliable repair
  • Durable construction – made of quality materials for leak-free service
  • Complete solution – includes all O-rings required to repair or replace specified coolant pipe
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life
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ACDelco – Water Pump Gasket (Part No.G3040344873ACD)

Water Pump Gasket

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$10.76
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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Felpro – Engine Coolant Thermostat Housing Gasket (Part No.35762)

Engine Coolant Thermostat Housing Gasket

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$3.29
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
  • Validated for fit, form, and function
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MAHLE Original – WATER OUTLET GSK (Part No.C31900)

WATER OUTLET GSK

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$11.49
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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ACDelco – Water Pump Housing (Part No.G3030584361ACD)

Water Pump Housing

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$170.52
Water Pump Housing

Dorman – Pressurized Coolant Reservoir: Clear, Plastic, Original Equipment Replacement (Part No.603-102)

Pressurized Coolant Reservoir: Clear, Plastic, Original Equipment Replacement

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$71.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

Product Features:
  • Direct replacement – this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution – engineered for a seamless installation
  • Durable construction – manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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ACDelco – GM Original Equipment Engine Coolant Thermostat (Part No.G4000204873ACD)

GM Original Equipment Engine Coolant Thermostat

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$27.52
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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Felpro – WATER PUMP MOUNTING GASKET SET (Part No.ES 73010)

WATER PUMP MOUNTING GASKET SET

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$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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Imperial – Electric Fan – 14" Diameter (Part No.226114)

Electric Fan - 14" Diameter

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$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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Dorman – Clutch Fan Blade: Plastic, Cost Effective And Reliable (Part No.621-514)

Clutch Fan Blade: Plastic, Cost Effective And Reliable

from

$92.99
Replace your damaged cooling fan blade with this direct replacement. This vehicle-specific application is engineered for a perfect fit and is made from quality materials to ensure durability and restore proper cooling system operation.

Product Features:
  • Direct replacement – this engine cooling fan blade fits and functions like the original equipment fan blade
  • Quality construction – manufactured from premium materials for a long service life
  • Excellent value – original equipment quality at a lower price
  • Quality tested – has undergone testing to ensure proper fit and performance
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Imperial – Thermostatic Fan Control – Adjustable (Part No.226208)

Thermostatic Fan Control - Adjustable

from

$62.99
Controls the operating temperature of Imperial electric fans. Operates up to 2 fans.

Product Features:
  • Adjustable thermostatic fan control
  • 160°F – 210°F thread-in probe
  • For use with Imperial electric fans
  • Thread-in probe for installation in water jacket or radiator
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ACDelco – GM Original Equipment Expansion Tank Cap (Part No.G1040206092ACD)

GM Original Equipment Expansion Tank Cap

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$25.37
An ACDelco GM Original Equipment Expansion Tank Cap is a spring loaded cap that seals the radiator filler neck or surge tank, and is a GM-recommended replacement for your vehicle’s original component. It maintains pressure on the cooling system while the engine is operating, which raises the boiling point of the engine coolant. It also replenishes the system with coolant from the expansion tank (if equipped) when the engine cools off. This original equipment radiator cap has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Get the GM quality you know and trust with ACDelco GM Original Equipment Thermostats and Caps. Stay with the brand of parts your General Motors vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Thermostats and Caps are engineered for virtually every model of GM car, light duty truck, and sport utility vehicle.

Product Features:
  • Seal and maintain pressure on the cooling system for vehicle safety
  • Raise the boiling point of the engine coolant to maintain efficiency
  • Fit most models of GM vehicles for expanded coverage
  • 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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KAI – Cooling Fan Shroud (Part No.GM3110136)

Cooling Fan Shroud

from

$49.99
New Platinum Pro Lower Fan Shroud, V6

Product Features:
  • V6 Engines
  • 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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US MOTOR WORKS – Water Pump with Fan Clutch (Part No.MCK1045)

Water Pump with Fan Clutch

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$162.99
US Motor Works Professional Series Water Pump with Fan Clutch are designed to replace the mechanical components of a cooling system. A proper water pump replacement should include a new fan clutch as the two are connected to the same shaft and work together to move the air and cooling fluid. Replacing one without the other can damage the new part and cause repeat work or engine trouble. This matched set will allow your vehicle continued operation in the demanding environment of today’s engine. All components are brand new and QA inspected for perfect fit and function. Restore your cooling power by installing a US Motor Works Professional Series Water Pump with Fan Clutch.

Product Features:
  • Fan clutch mounts to the water pump and should be replaced at the same time.
  • Matched set for proper water pump or fan clutch replacement
  • Includes mounting hardware, gaskets and accessories as required.
  • Complete mechanical cooling parts replacement
  • Factory tested and 100% new product
  • Meets or exceeds OEM quality
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Carquest Premium – Coolant Housing/Water Outlet: Gasket Included (Part No.85191)

Coolant Housing/Water Outlet: Gasket Included

from

$49.99
We are proud to offer this CARQUEST product line: CARQUEST Water Outlets. Our products are engineered and tested to provide years of trouble free operation and designed to be hassle free OE replacement part that meets and/or exceeds OE standards. Backed by over 50 years of mobile temperature control experience, fix it once and fix it right with CARQUST Water Outlets and Thermostat Housings.

Product Features:
  • Meets and/or exceeds OEM standard
  • Includes quality gasket or O-ring to ensure proper seal (where applicable)
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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Dorman – Coolant Housing/Water Outlet: With Water Outlet, 90 Degree Neck Angle (Part No.902-2127)

Coolant Housing/Water Outlet: With Water Outlet, 90 Degree Neck Angle

from

$111.99
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing directly replaces the original housing 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 thermostat housings
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2003 GMC Sierra 3500 Engine Cooling Parts

Maybe you’re in the middle of a full rebuild of that 2003 GMC Sierra 3500. Maybe you just need a couple of Engine Cooling Parts. Either way, Advance Auto Parts has 124 different Engine Cooling Parts in our inventory ranging from $1.29 to $698.12. That means you can find the exact parts or products you need to keep that 2003 GMC Sierra 3500 running smoothly.

Engine Cooling Parts are only as good as their brand. We stock 20 different brands to make sure you have plenty of trusted parts to choose from for your 2003 GMC Sierra 3500. Carquest Premium, Permatex, and Felpro 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 GMC Sierra 3500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 10,500 reviews in this category, some of the top rated parts include Engine Cooling Fan Clutch: Reverse Rotation Severe Duty Thermal Clutch with 4.4 stars and Standard Thermostat: With Seal, 195 Degrees with 4.6 stars.

So if you’re in the market for aftermarket Engine Cooling Parts to keep your 2003 GMC Sierra 3500 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 GMC Sierra 3500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 GMC Sierra 3500 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 Sierra 3500 the best it can be. Be sure to browse some of our top Engine Cooling Parts brands and parts.

Popular ACDelco Engine Cooling Parts

We carry ACDelco parts in our stock across Coolant Temperature Sensors categories, plus more. For a 2003 GMC Sierra 3500, our most popular ACDelco Engine Cooling Parts include:
Engine Coolant Temperature Sensor
from $34.99
(1)
Engine Coolant Temperature Sensor
Coolant Temperature Sensors

FAQs for 2003 GMC Sierra 3500 Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the 2003 GMC Sierra 3500?

Out of 124 Engine Cooling Parts for the 2003 GMC Sierra 3500, the most popular in our inventory are:
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(288)
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
Engine Water Pump Inlet Pipe Gaskets
Engine Water Pump
from $101.99
(345)
Engine Water Pump
Water Pumps
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
from $11.49
(95)
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
Water Pump Housing Gaskets

What are the top-rated 2003 GMC Sierra 3500 Engine Cooling Parts?

Top-rated Engine Cooling Parts for your 2003 GMC Sierra 3500 based on customer reviews/ratings are:
Engine Cooling Fan Clutch: Reverse Rotation Severe Duty Thermal Clutch
from $95.99
(129)
Engine Cooling Fan Clutch: Reverse Rotation Severe Duty Thermal Clutch
“Good value and perfect replacement part”
Standard Thermostat: With Seal, 195 Degrees
from $7.29
(105)
Standard Thermostat: With Seal, 195 Degrees
“Replaced my old one.. No problems”
Engine Water Pump Gasket
from $6.49
(100)
Engine Water Pump Gasket
“Great product …easy to use”