2003 Chevrolet Express 1500 Engine Cooling Parts

Carquest Premium Integrated Housing Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This integrated thermostat 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 as well as the design and function of the housing. 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

GM Genuine Parts Engine Coolant Thermostat / Water Inlet Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These engine coolant thermostat / water inlet assemblies contain the engine thermostat and water inlet housing. The engine coolant thermostat controls the flow of coolant through the radiator; enabling the engine to reach and maintain its normal operating temperature. The water inlet housing connects the radiator hoses to the thermostat. For certain applications, the water inlet contains threaded holes or ports for sensors and switches. 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:

• Provides a durable leak-resistant seal
• Repairs leaking thermostat housings
• Corrects engine overheating caused by failed thermostat
• 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

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

Manufactured with OEM quality materials and safety standards by an OE Supplier. 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

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

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

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

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

An ACDelco GM Original Equipment Radiator 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

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

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

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

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

This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:

• Heavy gauge stainless steel components offer increased reliability and long-lasting durability
• Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
• Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
• AccuSpring Design for stable temperature control and increased cabin comfort

This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:

• Heavy gauge stainless steel components offer increased reliability and long-lasting durability
• Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
• Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
• AccuSpring Design for stable temperature control and increased cabin comfort

Designed to open at 180 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.

Product Features:

• Opens sooner than stock at 180 degrees
• High flow design for performance applications
• Includes rubber o-ring seal/gasket
• Incorporates pressure relief valve

Designed to open at 160 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.

Product Features:

• Opens sooner than stock at 160 degrees
• High flow design for performance applications
• Includes rubber o-ring seal/gasket
• Incorporates pressure relief valve

Thermostat

ACDelco Professional Water Pumps are the best way to make sure you have the proper heat protection for the engine in your car, truck or SUV. Built to meet the latest manufacturer-specified designs, ACDelco Water pumps, in both cast-iron and aluminum, are thoroughly pressure-tested to prevent leaks, and feature uniform wall sections and smooth coolant-flow cavities for efficient operation and superior engine protection. High-quality bearings, heat-treated impellers and coated seals mean long life and trouble-free ownership.

Product Features:

• Original equipment design and quality
• 100% new with no remanufactured parts
• High quality cast housing
• Advanced bearing design for high axial and radial stresses
• Advanced sealing technology
• Optimum cooling performance and longevity

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

This replacement engine water pump is leak and flow tested. Gaskets and seals are included where applicable.

Product Features:

• This pump is used on accessory belt driven applications
• Used mostly on models equipped with a fan clutch
• It is highly recommended that the fan clutch be replaced with the water pump
• All gaskets or seals necessary for installation are supplied with pump
• Durable housing features precisely machined mounting surfaces for proper sealing

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

This replacement engine water pump is leak and flow tested. Gaskets and seals are included where applicable.

Product Features:

• This pump is used on accessory belt driven applications
• Used mostly on models equipped with a fan clutch
• It is highly recommended that the fan clutch be replaced with the water pump
• All gaskets or seals necessary for installation are supplied with pump
• Durable housing features precisely machined mounting surfaces for proper sealing

An ACDelco Professional, premium aftermarket Engine Water Pump circulates coolant through your vehicle’s radiator and engine system to help maintain proper engine temperature and performance. The gaskets, seals, and O-rings packaged with this Professional, premium aftermarket water pump help guarantee that all necessary parts are available for trouble-free installation. ACDelco Professional Water Pumps are a high quality replacement for many vehicles on the road today. This premium aftermarket replacement engine water pump is manufactured to meet your expectations for fit, form, and function.

Product Features:

• All Makes water pumps fit GM vehicles as well as a wide range of non-GM vehicles
• Thoroughly tested for reliable, leak-free performance
• Coated seals support seal longevity and durability
• Heat-treated shaft assemblies provide superior strength and durability over non-treated assemblies
• High-quality bearings are permanently sealed and lubricated for greater durability and long life
• Come with premium, high-quality replacement components needed for trouble-free and accurate installation
• Uniform wall sections and smooth coolant-flow cavities for efficient operation
• Cast-iron or aluminum design, depending on vehicle application

An ACDelco Professional, premium aftermarket Engine Water Pump circulates coolant through your vehicle’s radiator and engine system to help maintain proper engine temperature and performance. The gaskets, seals, and O-rings packaged with this Professional, premium aftermarket water pump help guarantee that all necessary parts are available for trouble-free installation. ACDelco Professional Water Pumps are a high quality replacement for many vehicles on the road today. This premium aftermarket replacement engine water pump is manufactured to meet your expectations for fit, form, and function.

Product Features:

• All Makes water pumps fit GM vehicles as well as a wide range of non-GM vehicles
• Thoroughly tested for reliable, leak-free performance
• Coated seals support seal longevity and durability
• Heat-treated shaft assemblies provide superior strength and durability over non-treated assemblies
• High-quality bearings are permanently sealed and lubricated for greater durability and long life
• Come with premium, high-quality replacement components needed for trouble-free and accurate installation
• Uniform wall sections and smooth coolant-flow cavities for efficient operation
• Cast-iron or aluminum design, depending on vehicle application

ACDelco Professional Water Pumps are the best way to make sure you have the proper heat protection for the engine in your car, truck or SUV. Built to meet the latest manufacturer-specified designs, ACDelco Water pumps, in both cast-iron and aluminum, are thoroughly pressure-tested to prevent leaks, and feature uniform wall sections and smooth coolant-flow cavities for efficient operation and superior engine protection. High-quality bearings, heat-treated impellers and coated seals mean long life and trouble-free ownership.

Product Features:

• Original equipment design and quality
• 100% new with no remanufactured parts
• High quality cast housing
• Advanced bearing design for high axial and radial stresses
• Advanced sealing technology
• Optimum cooling performance and longevity

The GMB Water Pump contains no remanufactured components and is designed to combat engine overheating associated with higher RPM, performance and high load applications. All GMB Water Pumps feature a precision ground, heavy duty steel bearing that`s completely sealed and lubricated for life. A specially modified, high performance impeller eliminates cavitation at high RPM`s, maintaining maximum volumetric flow of coolant, thus reducing engine temperature and increasing horsepower.

Product Features:

• OE-Equivalent and direct fit application.
• 100% new with no remanufactured parts.
• High flow design
• Factory lubricated bearing assembly
• Precision ground shaft and hub
• OE quality forged housing for maximum coolant flow
• Precision built and balanced
• Pressed on impeller for increased water flow
• Unique no sealed required gasket
• Unitized seal protects bearings and provides long life leak free performance.
• Factory sealed precision ground one piece bearing assembly

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

New Platinum Pro Radiator, 5.3 Liter V8 Engine, With Clamp On Style Hose Connections

Product Features:

• 5.3 Liter V8 Engine, With Clamp On Style Hose Connections, Made Of Plastic and Aluminum
• 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
• Radiator Cap Not Included
• Check Out The Large Selection Of Parts Available For Your Vehicle

Radiator