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2003 CHEVROLET SILVERADO 2500 HD Cooling & Heating
Showing In Stock Items. Show All 161 Items.
On Sale
Summit Bucks
Mishimoto Oil Cooler Kits
Enthusiasts who push their high performance cars to the limit understand the importance of keeping their oil temperatures low to prevent damage, or even seizure of the engine. Mishimoto oil cooler kits are designed to extend the life of your engine by ensuring that your essential high-wear engine components, such as piston rings, skirts, and cam bearings, are sufficiently lubricated with cooler oil. The kits include a durable aluminum oil cooler, stainless steel braided hose lines, fittings, and all necessary adapters. Models are also available to cool transmission oil/fluid. Order the universal or vehicle-specific cooler that's best suited for your application.
( 47 )
$396.95
ACDelco Mechanical Water Pumps
ACDelco mechanical pumps are ideal replacement components for many vehicles on the road today. They're manufactured to meet and exceed OE specifications for fit and performance. The pumps are available in many styles, materials, and other options. Order the model recommended for your application. Features and benefits include: * Available for practically all GM vehicles as well as a wide range of non-GM vehicles * Completely pressure-tested for reliable, leak-free performance * Coated seals support seal longevity and durability * Heat-treated shaft assemblies and impellers provide superior strength and durability * High-quality bearings are permanently sealed and lubricated for greater durability and long life * Uniform wall sections and smooth coolant-flow cavities for efficient operation * Cast iron, aluminum, or steel design, depending on vehicle
( 461 )
$103.99
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$207.99
Summit Racing™ Plastic/Aluminum Radiators
A Summit Racing™ plastic/aluminum radiator gives your engine bay the current cooling update it needs. These units are designed for premium performance, while fitting your vehicle's original mounts, so your ride can have a new radiator without modifications to the brackets and fittings. The radiators are available in various sizes and styles to fit your application. Efficient and economical, Summit Racing™ replacement radiators are an excellent option to restore the cooling performance your vehicle requires.
( 88 )
$196.99
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$378.99
Hayden Rapid-Cool Transmission Oil Coolers
Hayden Rapid-Cool transmission oil coolers take the heat, so your vehicle won't! Over 14-million transmissions fail every year, and 9 out of 10 are from overheating. Rapid-Cool's unique plate and fin design combines cooling expertise and space efficiency; multiple sizes are available. Their patented internal turbulation provides better heat transfer. Lower your operating temps with a pioneer in cooling: Hayden!
( 163 )
$42.99
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$119.99
Cold Case Performance Aluminum Radiators
Cold-Case performance aluminum radiators are available and affordable for all. These high-quality, tube-and-fin performance radiators are true OE styles for most applications. Each Cold-Case design distributes fluid more evenly, eliminating hot and cold spots. Also, the massive cores take up the entire width of their tanks, so you get the most efficient cooling possible. The radiators drop-in without modifications needed (on most) and look original. Plus, Cold-Case stands behind its quality and research with a limited lifetime warranty on their products. All Cold-Case radiators feature: * Lightweight, efficient aluminum construction * 100 percent TIG-welded * Internally welded filler necks offer a clean, factory look * Two oversized cooling rows for increased capacity * 1 in. to 1 1/4 in. tubes for higher volume * Works with factory filler cap * Includes OEM-style petcock * 42.7 percent lighter than comparable copper radiators * 30 percent thicker materials than no-name aluminum radiators * 60-day COOL guarantee
( 661 )
$432.54
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$685.54
On Sale
Frostbite Performance Cooling Aluminum Radiators
Protect your ride from overheating! Now you can maximize cooling efficiency with Frostbite's performance cooling aluminum radiators. They're engineered to cool more effectively and weigh less than the older OEM-style brass units, enhancing the overall performance of your engine. Frostbite radiators are available in a variety of application-specific fitments, each unit engineered with aircraft-quality aluminum cores, fittings, tanks with billet aluminum filler necks, and OEM-style brass petcocks. A proper cooling system starts with the right radiator—the Frostbite!
( 322 )
$427.95
$384.95
On Sale
Mr. Gasket Water Necks
Mr. Gasket offers replacement water necks in a variety of styles, materials, finishes, sizes, and angles. Water necks help to hold the vehicle's thermostat in place as it opens and closes—to regulate the flow of coolant through your engine. The opening in the water neck created by the thermostat allows coolant to flow from the radiator back to the engine. Order the model recommended for your vehicle.
( 119 )
$51.19
$42.72
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$64.65
On Sale
Mr. Gasket LS Thermostats
Mr. Gasket offers these high-quality thermostats for GM LS series automobile and light truck engines that utilize a separate thermostat and water neck. They're available in 160 and 180 degree temperatures to suit your engine application.
( 25 )
$37.66
$33.89
Four Seasons Fan Mount Pull Tie Kits
Four Seasons fan mount pull tie kits allow for the easy installation of your fan. These black nylon ties secure your fan and include holders and pads to protect your radiator. Mount your fan right with Four Seasons fan mount pull tie kits.
( 53 )
$3.99
FlowKooler Hi-Flow Mechanical Water Pumps
FlowKooler Hi-Flow mechanical water pumps resolve low-speed heating problems by doubling flow rates at low rpm and idle. CNC precision-machined impellers feature larger diameters, increased vane count, tighter clearances, shrouding, and porting. These unique design features help drop engine temperatures by up to 30 degrees, increase the block pressure to prevent hot spots on cylinder walls, and stop the formation of steam pockets in the block, all while delaying the onset of cavitation at higher rpm. FlowKooler Hi-Flow mechanical water pump impellers are protected from electrolysis and corrosion with a military-grade Type II Class II anodized surface coating.
( 762 )
$198.99
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$248.99
GMB OE Replacement Water Pumps
GMB OE replacement water pumps are precision-built and balanced to meet or exceed original equipment specifications. They're assembled with heavy-duty steel bearings—and are lubricated and sealed for life. Order the model designed for your vehicle application. All GMB water pumps are factory-tested for quality and include the following features: * High-flow design for long-lasting, efficient cooling * Designed for OE fit and performance * Precision-ground shaft and hub accept OE fan clutches perfectly * OE-quality forged housing is specially formed to ensure maximum coolant flow * Pressed-on impeller increases water flow * Unique no-sealant-required gasket makes installation fast and easy * Unitized seal protects bearings for long life and leak-free performance * Factory-sealed, precision-ground, one-piece bearing assembly
( 535 )
$92.99
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$115.99
Fluidyne High Performance Radiators
Fluidyne high performance radiators feature aluminum end tanks and 100 percent NOCOLOK brazed aluminum cores, rather than the epoxy-bonded types used by others. These cores are built using high-efficiency cooling fins that deliver maximum performance and durability. The radiators are offered in universal sizes, as well as exact fit, with all brackets, fittings, and hoses set up to match the original equipment layout for easy installation—and they meet ISO 9001 standards for quality. Fluidyne radiators are available in crossflow and downflow styles, and a range of sizes for vehicle-specific applications; some models also include a transmission cooler. Keep your ride cool on the hottest days or at the track with a Fluidyne radiator.
( 36 )
$599.00
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$1,095.00
Banks Power Oil Cooler Upgrade Kits
Banks Power oil cooler upgrade kits improve heat reduction and performance of your Duramax engine. At the heart of each kit is GM's 2020 Duramax L5P oil cooler, rejecting heat better at the factory-rated 450 hp when tested against the earlier units, a difference that becomes even more apparent at higher engine speed and load--the higher the horsepower, the greater the improvement. Additional cooling plates and improved oil flow increase the available surface area utilized for heat transfer, shedding more BTUs of heat while maintaining proper oil pressure. Hardware, gaskets, and an AMSOIL EAO17 oil filter are included, as well as a pre-installed 1/8 in. NPT port for oil temperature/pressure sensors. Banks Power chooses to include an Amsoil EAO17 oil filter for its superior filtration properties and low oil pressure loss, exceeding OEM filtration specs with 99 percent efficiency at 20 microns. Key features: * Cools 31 percent or better * More cooling plates for better heat rejection * Increased cooling stack surface area * Pre-installed 1/8 in. NPT sensor port for temperature or pressure
( 2 )
$549.00
Hayden Rapid-Cool Transmission Oil Coolers with Thermal Bypass
Hayden Rapid-Cool transmission oil coolers with thermal bypass are ideal for colder climates. With their patented internal pressure bypass design, they will help your transmission reach optimum operating temperature quickly by routing the fluid through the bypass channel of the cooler until fluid temperature increases. Reaching operating temperatures faster improves fuel economy and reduces friction of internal components. Hayden's design incorporates an integrated valve that eliminates the need for external valves and additional plumbing at installation. Features and benefits: * Bi-directional flow * 33 percent more efficient than traditional coolers * High efficiency louvered fins and special oil turbulators * 100 percent brazed aluminum construction offer superior strength and reliability * Available in sizes to fit a wide range of applications from compact cars to Class "A" motorhomes * All cooler brackets come pre-drilled for easy mounting * All hardware necessary for installation * 100 percent pressure-tested at the factory ensuring quality and performance
( 11 )
$57.99
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$74.99
ACDelco GM Genuine Parts Water Necks and Thermostat Housings
ACDelco water necks and thermostat housings fit your vehicle just like the originals. When you need to restore the efficiency of your water inlet/thermostat housing, these quality replacements fix your issues with leak-free performance and peace of mind. The units are available in a variety of configurations for applications from the 1960s and up. You can be assured that not only the fit, but also the function will be just as expected. Replace your water necks with one of the same from ACDelco.
( 32 )
$40.99
On Sale
Mishimoto Performance Radiators
Mishimoto performance radiators are designed and engineered to maximize cooling efficiency, boost engine functions, and, most of all, protect your engine from overheating. Many stock radiators can't handle the additional heat that comes higher horsepower levels. So, swap out your stock radiator for an all-aluminum Mishimoto. Key features and benefits of Mishimoto performance radiators include: * Available for universal and exact fit applications (no cutting or modifications required) * All-aluminum construction for optimal heat dissipation, improved strength, and reliability * Increased cooling capacity due to their massive core size * 100 percent brazed aluminum core for minimal distortion, low stress, and clean joints * Available in various sizes with 2-row or 3-row cores * TIG-welded for clean, strong welds and increased durability * Magnetic drain plugs capture metallic debris or fragments * Included high-pressure 1.3 bar cap raises the coolant boiling point for greater safety and efficiency * Automatic transmission and accessory coolers included where applicable
( 338 )
$259.95
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$949.87
Summit Racing™ Thermostats
Summit Racing offers replacement thermostats for thousands of vehicles. They're offered in a variety of styles, materials, flow rates, temperature ratings, and more. A reliable thermostat is essential to your cooling system and overall performance—kicking in precisely when your engine needs it. Order the model best suited for your application.
( 361 )
$49.99
Summit Racing™ Exact Fit Diesel Radiators
It's a fact; stock radiators cannot handle the heat from the huge horsepower of diesel engines. Summit Racing™ offers the perfect solution with these exact fit diesel radiators. They are designed and engineered to maximize cooling efficiency, boost engine functions, and protect your truck from overheating. Whether you use your rig for daily driving or as a powerhouse for hauling and towing, you don't want to overlook the importance of installing a quality diesel radiator to keep the engine cool and efficient. Equip your big rig with Summit Racing™ exact fit diesel radiators.
( 17 )
$379.99
Agility Auto Parts Radiators
Agility Auto Parts offers a complete line of radiators covering most North American vehicle applications. These certified automotive condenser components meet or exceed the manufacturer's specifications, making them ready to install out of the box. Engineered and manufactured under ISO TS16949 quality system guidance, every Agility Auto Parts radiator is 100 percent leak-tested for trouble-free operation and utilize a B-tube design to optimize coolant flow through the radiator, while adding structural rigidity creating a durable tube. Plastic tanks are designed and tested to 100,000 pressure cycles with no cracks, bowing, or distortion. The tanks are cast with ribbing inside or out for added strength. Order the radiator model designed to fit your application.
( 33 )
$169.99
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$343.99
ACDelco GM Genuine Parts Engine Coolant Thermostats
ACDelco GM Genuine Parts engine coolant thermostats monitor the flow of coolant through your vehicle's engine and radiator. Built to the exact specification of your original component, these are the only GM-recommended replacements. Do not settle for anything less than the best; choose ACDelco GM Genuine Parts.
( 37 )
$14.99
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$37.99
ACDelco GM Genuine Parts Radiators
ACDelco GM Genuine Parts offer a complete line of replacement radiators that are dependable and long-lasting. The radiators are stronger, lighter in weight, corrosion-resistant, and more efficient in transferring heat. GM Genuine Parts are the true OE parts installed during production or validated by GM, for GM vehicles--designed, engineered, and tested to rigorous standards and backed by General Motors.
( 16 )
$337.99
Flex-A-Lite Direct-Fit Electric Fans
Flex-A-Lite direct-fit fans delivers all of the advantages of an electric cooling fan—quicker warm-ups and cool-downs, additional horsepower and torque, quieter operation, and a custom installation. All necessary mounting hardware is included, making them that much easier to install. Flex-A-Lite direct fit electric fans are available in a variety of sizes, quantities, and cfm abilities. Choose the model that best complements your engine compartment.
( 29 )
$527.99
PRW High Performance Mechanical Water Pumps
PRW High Performance mechanical water pumps are engineered to deliver increased water flow faster. These super velocity pumps significantly improve cooling for all street, high performance, and racing applications. The low pressure-injected, A356 aluminum alloy pump bodies are complemented by a precision, high-flow cast iron impeller design. Pressure-balanced water passages equalize flow and minimize engine hot spots at any speed. PRW High Performance mechanical water pumps are excellent alternatives for not only racers, but also trucks, towing, and motorhome applications. Order the model recommended for your specific vehicle and engine size. Features, items, and specs: * 35 gpm at 4,000 rpm with minimal cavitation and proportional increased flow rates at 5,000+ rpm * Aircraft industry tolerances * Heavy-duty 0.75 in. diameter steel shafts * Billet steel hubs and shielded-seal roller ball bearings * Back plate O-ring sealed for most applications * System Basis Chip (SBC) applications include adjustable hardware
( 31 )
$219.77
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$284.27
OSC Automotive Radiators
Few things get your attention as quickly as seeing white smoke billowing out from under the hood—and once stopped, precious anti-freeze all over the ground. OSC Automotive radiators are designed to fit into place as easily as the stock model came out; OEM models are used as a baseline, so their radiators meet or exceed the originals. To ensure great products, OSC starts with the highest grade of raw components, then follows factory construction standards to maintain longevity of the engine and transmission. Transmission and oil coolers are tested before installation on needed units, and radiator cores are qualified before and after assembly using state-of-the-art cycle, vibration, burst, and environment testing. OSC prides itself on solving OE design failures in order to provide radiators with better life expectancies than the originals. Over a thousand models are available for fitment on specific makes and models. Choose the style designed for your engine type and vehicle application.
( 292 )
$166.99
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$363.99
