2003 Pontiac Bonneville Engine Cooling Parts

Essential 2003 Pontiac Bonneville Engine Cooling Parts

GM Genuine Parts – Lower Thermal Bypass Pipe (Part No.12565082)

Lower Thermal Bypass Pipe

from

$6.29
GM Genuine Parts Thermostat Bypass Pipes 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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Felpro – Engine Water Pump Gasket (Part No.12967)

Engine Water Pump Gasket

from

$4.49
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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Carquest – Air Bag Sensor Connector (Part No.PT5909)

Air Bag Sensor Connector

from

$49.49
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • Our knock sensors are designed to respond to knock frequencies up to 1000 Hz accommodating shifts in engine knock frequency making it a more flexible sensor responding to correct engine knock over a broad range of vehicle conditions
  • Manufacturing processes include an automated data acquisition system to continuously monitor the sensor output to ensure that it responds with appropriate voltage output at the specified frequency range
  • All units are 100% tested using an accelerometer vibration test to ensure trouble-free operation
  • Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box
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Dorman – Coolant Air Bleeder Screw (Part No.902-112)

Coolant Air Bleeder Screw

from

$16.99
This engine coolant bleeder screw has been manufactured from durable material to prevent cooling system leaks. Matches the original screw for fit and function.

Product Features:
  • Ideal replacement – this engine coolant bleeder screw matches fit and function of the original equipment screw
  • Durable materials – designed to withstand high cooling system temperatures and pressures
  • Cost-effective solution – this bleeder screw offers original equipment quality at a competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life
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Permatex – Sensor-Safe, High-Torque RTV Silicone Gasket Maker (Part No.82194)

Sensor-Safe, High-Torque RTV Silicone Gasket Maker

from

$11.49
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Motorad – Thermostat Kit: Includes Housing, Thermostat and Gasket, 195 Degrees (Part No.4844KT)

Thermostat Kit: Includes Housing, Thermostat and Gasket, 195 Degrees

from

$20.99
Kit includes thermostat, housing, and all necessary seals/gaskets to do the complete job. These individual parts are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat and housing will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Dorman – Coolant Housing/Water Outlet: With Housing and Gasket, 45 Degree Neck Angle (Part No.902-2059)

Coolant Housing/Water Outlet: With Housing and Gasket, 45 Degree Neck Angle

from

$16.99
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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Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T3111)

Engine Water Pump: New, Gasket/Seals Included

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$79.99
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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Carquest Premium – Coolant Housing/Water Outlet: Gasket Included (Part No.84853)

Coolant Housing/Water Outlet: Gasket Included

from

$26.99
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)
  • Coated with corrosion and rust inhibitor
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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Dorman – Nylon Bumper Fender Retainer (Part No.961-363D)

Nylon Bumper Fender Retainer

from

$4.49
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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Permatex – Sensor-Safe, High Torque RTV Silicone Gasket Maker (Part No.22074)

Sensor-Safe, High Torque RTV Silicone Gasket Maker

from

$6.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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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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Mahle – Water Pipe O-Ring (Part No.G2026372923MAH)

Water Pipe O-Ring

from

$2.46
Water Pipe O-Ring

Victor Reinz – Engine Coolant Thermostat Gasket (Part No.71-13549-00)

Engine Coolant Thermostat Gasket

from

$5.79
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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Dorman – Help – Engine Coolant Reservoir Cap: Spring Loaded Twist, Plastic, 1 Pack (Part No.54221)

Engine Coolant Reservoir Cap: Spring Loaded Twist, Plastic, 1 Pack

from

$18.99
Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:
  • Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap
  • Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
  • Seamless fit – reverse-engineered from the original equipment to fit perfectly
  • Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership
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Delphi – Engine Coolant Temperature Sensor (Part No.TS10075)

Engine Coolant Temperature Sensor

from

$29.99
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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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.433909)

Radiator: With Transmission Oil Cooler

from

$193.99
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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Felpro – THERMOSTAT GASKET (Part No.35595)

THERMOSTAT GASKET

from

$2.99
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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Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)

Radiator Cap Tester Adapter

from

$14.29
Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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Imperial – Electric Fan – 12" Diameter (Part No.226112)

Electric Fan - 12" Diameter

from

$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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Mr. Gasket – Thermocap Radiator Cap (Part No.2470B)

Thermocap Radiator Cap

from

$47.19
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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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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Felpro – THERMOSTAT GASKET (Part No.35666)

THERMOSTAT GASKET

from

$4.99
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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Stant – Thermostat Gasket (sold by each) (Part No.30983)

Thermostat Gasket (sold by each)

from

$0.49
Thermostat Gasket (sold by each)

KAI – Radiator Support Tie Bar (Part No.GM1225205)

Radiator Support Tie Bar

from

$33.99
New Standard Replacement Radiator Support Upper Tie Bar

Product Features:
  • 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 – Standard Thermostat: 195 Degrees (Part No.13359)

Standard Thermostat: 195 Degrees

from

$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Motorad – Standard Thermostat: 192 Degrees (Part No.239-192)

Standard Thermostat: 192 Degrees

from

$15.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Carquest Premium – Standard Thermostat: 160 Degrees (Part No.13356)

Standard Thermostat: 160 Degrees

from

$9.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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2003 Pontiac Bonneville Engine Cooling Parts

Maybe you’re in the middle of a full rebuild of that 2003 Pontiac Bonneville. Maybe you just need a couple of Engine Cooling Parts. Either way, Advance Auto Parts has 55 different Engine Cooling Parts in our inventory ranging from $2.46 to $258.61. That means you can find the exact parts or products you need to keep that 2003 Pontiac Bonneville 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 Pontiac Bonneville. 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 Pontiac Bonneville, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 4,431 reviews in this category, some of the top rated parts include Water Pump: New, Installation Gasket Included with 4.5 stars and THERMOSTAT GASKET with 4.9 stars.

So if you’re in the market for aftermarket Engine Cooling Parts to keep your 2003 Pontiac Bonneville 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 Pontiac Bonneville Last

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

Popular Delphi Engine Cooling Parts

We carry Delphi parts in our stock across Coolant Temperature Sensors categories, plus more. For a 2003 Pontiac Bonneville, our most popular Delphi Engine Cooling Parts include:
Engine Coolant Temperature Sensor
from $29.99
(1)
Engine Coolant Temperature Sensor
Coolant Temperature Sensors

Top 2003 Pontiac Bonneville Engine Cooling Parts from Carquest Premium

Carquest Premium products are another trusted brand when it comes to Engine Cooling Parts for your 2003 Pontiac Bonneville. Popular Carquest Premium parts include:
Radiator Cap: 16 PSI
from $9.79
(260)
Radiator Cap: 16 PSI
Radiator Caps
Engine Water Pump: New
from $49.99
(191)
Engine Water Pump: New
Water Pumps
Radiator Cap: 16 PSI
from $16.79
(91)
Radiator Cap: 16 PSI
Radiator Caps

FAQs for 2003 Pontiac Bonneville Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the 2003 Pontiac Bonneville?

Out of 55 Engine Cooling Parts for the 2003 Pontiac Bonneville, 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
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
from $11.49
(95)
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
Water Pump Housing Gaskets
Thermostat: 192 Degrees
from $35.99
This product is not rated
Thermostat: 192 Degrees
Thermostats

What are the top-rated 2003 Pontiac Bonneville Engine Cooling Parts?

Top-rated Engine Cooling Parts for your 2003 Pontiac Bonneville based on customer reviews/ratings are:
Water Pump: New, Installation Gasket Included
from $40.99
(191)
Water Pump: New, Installation Gasket Included
“Stock”
THERMOSTAT GASKET
from $4.99
(93)
THERMOSTAT GASKET
“works as stated”
Standard Thermostat: 195 Degrees
from $9.99
(42)
Standard Thermostat: 195 Degrees
“Works”