2003 Chevy Silverado Performance Engine Cooling

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    • Mishimoto® Performance Aluminum Radiator
      (0 reviews)
      Chevy Silverado 6.6L 2003, Center Performance Aluminum Radiator by Mishimoto®. Overall Size: 45.6" x 20.8" x 5.4". Core Size: 34.06" x 19.61". Rows: 2. Inlet: 1.89". Outlet: 1.89". Tank Wall Thickness: 0.08". Core Thickness: 2.20"....
      Full Aluminum Construction including durable, TIG-welded end tanksIncreased fluid capacity and optimal heat dissipation
      $956.25$765.00
      # 15873947
    • Flex-a-lite® 15" S-Blades Dual Electric Fan
      (0 reviews)
      Chevy Silverado 2003, 15" S-Blades Dual Electric Fan by Flex-a-lite®. 31-7/8" W x 17" H x 4-1/2" D. 6000 CFM. 28-36 AMP Draw. 18000 GVW. Replace your old belt-driven fan with this highly efficient device and get all possible...
      Maximizes horsepower and torqueOptimizes gas mileage
      $774.94$619.95
      # 12896386
    • Flex-a-lite® Dual Electric Fan
      (0 reviews)
      Chevy Silverado 2003, Dual Electric Fan by Flex-a-lite®. With Adjustable Thermostat, with Air Conditioning Relay and Variable Speed Control. Replace your old belt-driven fan with this highly efficient device and get all possible...
      Maximizes horsepower and torqueOptimizes gas mileage
      $687.44from $549.95 - $609.95
      # 12896440
    • Flex-a-lite® Lo-Profile S-Blade™ Electric Fan
      (0 reviews)
      Chevy Silverado 4.3L CPI Engine X Engine VIN code LU3 Engine 2003, 12-1/8" Lo-Profile S-Blade™ Electric Fan by Flex-a-lite®. With Adjustable Thermostat and Air Conditioning Relay. 15" W x 13-1/2" H x 2-5/8" D. 1250 CFM. 11 AMP...
      12-1/8" Fan Diameter1250 CFM of airflow
      $249.94$199.95
      # 12889201
    • Flex-a-lite® Trimline Electric Fan
      (0 reviews)
      Chevy Silverado 2003, 14" Trimline Electric Fan by Flex-a-lite®. Black. 14-1/4" W x 14-3/4" H x 3-1/2" D. 1585 CFM. 9.5 AMP Draw. Reversible. Thru Core Mount. The Trimline electric fans can be used as a primary fan or an auxiliary...
      Can be used as a primary or an auxiliary fanReversible design allows for use in pusher or puller applications
      $119.15$95.32
      # 12918577
    • Hayden® Rapid-Cool™ Reversible Fan Kit
      (0 reviews)
      Chevy Silverado 2003, Rapid-Cool™ Reversible Fan Kit by Hayden®. Size: 14" D, 3 5/8" Depth, Amp Draw: 11.5, 1.05 CFM Airflow Through Radiator, Mount Size: 14 3/4" x 13 7/8", 1.25 CFM Free Airflow. This product can be used for...
      Reversible push/pull operationThin, aerodynamic profile for applications with limited space
      $89.16$71.33
      # 23618619
    • Maradyne® Jetstreme™ Series Electric Fan
      (0 reviews)
      Chevy Silverado 1500 2003, Jetstreme™ Series Electric Fan by Maradyne®, 12''. The Jetstream series fans are a quiet, low-profile design with a rubber-sealed shroud for maximum airflow, and to eliminate vibration. These...
      $207.05from $165.64 - $349.99
      # 4463085
    • Maradyne® Mach™ Electric Fan
      (0 reviews)
      Chevy Silverado 2003, Mach™ Electric Fan by Maradyne®. Replace your engine’s power-robbing belt-driven fan and viscous clutch assembly with this cool-running electric fan. You’ll get more power to accelerate, and improve your...
      $566.65$453.32
      # 4464874
    • Mishimoto® Thermostat
      (0 reviews)
      Chevy Silverado 2003, Thermostat by Mishimoto®. Mishimoto racing thermostats promote greater cooling efficiency by significantly decreasing high engine temperatures resulting from modified and upgraded turbo applications. Once the...
      Direct fitPromotes Greater Cooling Efficiency by significantly decreasing high engine temperatures
      $60.00from $48.00 - $72.00
      # 52153885
    • Mishimoto® Silicone Radiator Hose Kit
      (0 reviews)
      Chevy Silverado 6.6L 2003, Silicone Radiator Hose Kit by Mishimoto®. Includes: 2 Silicone Radiator Hoses. Inner Diameter: Hose 1 - 1.65", 2.05", 0.95", 0.55", Hose 2 - 1.70", Outer Diameter: Hose 1 - 2.05", 2.45", 1.35", 0.95",...
      Direct OEM fitManufactured from 100% high-grade silicone and heat-resistant embedded fibers
      $337.50$270.00
      # 15875896
    • Mr. Gasket® Thermocap™ Radiator Cap
      (0 reviews)
      Chevy Silverado 2003, Thermocap™ Radiator Cap by Mr. Gasket®, 16 psi. OEM Replacement with Thermometer Built In. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether...
      $34.03from $27.22 - $27.39
      # 12352500
    • Dorman® Pressurized Coolant Recovery Tank
      (0 reviews)
      Chevy Silverado 2003, Pressurized Coolant Recovery Tank by Dorman®. Material: Plastic. With Reservoir Cap. Without Mounting Brackets. Installation Hardware not Included. Dorman’s Engine Coolant Recovery Tank is designed for...
      Comes with reservoir capLevel sensor included (where applicable)
      $37.71from $30.17 - $53.73
      # 16600134
    • Replace® Radiator
      (0 reviews)
      Chevy Silverado 2003, Radiator by Replace®. The radiator contains a series of small tubes through which coolant flows from the engine. A network of fins surrounds the tubes. Airflow through the grille when the vehicle is at speed,...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $140.39from $112.31 - $322.28
      # 5177009
    • Spectra Premium® Radiator
      (0 reviews)
      Chevy Silverado 2003, Radiator by Spectra Premium®. The radiator is a heat exchanger that transfers heat from your engine to the air flowing through the fins. If it’s damaged your engine could overheat. Before you end up with...
      Built with high density fins for maximum cooling efficiencyOE design to ensure exact fit, form, and function
      $135.88from $108.70 - $414.04
      # 48078977
    • APDI® Radiator
      (0 reviews)
      Chevy Silverado 2003, Radiator by APDI®. Construction: Plastic Tank Aluminum. ADPI offers over 900 models covering 95% of the automotive, light truck and SUV industry. And with over a dozen patents and innovative features, the...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $120.10from $96.08 - $427.62
      # 22124792
    • Koyorad® Radiator
      (0 reviews)
      Chevy Silverado 2003, Radiator by Koyorad®, 1 Row, Plastic/Aluminum Material. When you notice that your radiator is leaking, clogged or otherwise damaged, you don't have to pay the high dealer price for a replacement any more....
      OE quality at an affordable priceDirect replacement
      $117.44from $93.95 - $166.32
      # 26116735
    • Delphi® OE Radiator
      (0 reviews)
      Chevy Silverado 2003, Radiator by Delphi®. Designed and manufactured to OE specifications, Delphi’s radiators offer enhanced performance that delivers optimal cooling, even in extreme conditions including aggressive and low-speed...
      Compact, lightweight brazed-aluminum constructionMaximum heat transfer performance
      $311.06from $248.85 - $397.57
      # 52393285
    • Sherman® Radiator
      (0 reviews)
      Chevy Silverado Extended Cab / Crew Cab / Regular Cab 2003, Radiator by Sherman®, 1 Row. Restore the OEM-specified cooling ability and be sure that your engine runs optimally and is protected from possible overheating and damage....
      Factory original quality at less costDirect fit replacement
      $175.34from $140.27 - $225.42
      # 34638293
    • Koyo® Aluminum Radiator
      (0 reviews)
      Chevy Silverado 2003, Aluminum Radiator by Koyo®. Plastic Tank. Has your temperature gauge needle been creeping up? Are you seeing green puddles on the ground under your vehicle? If so, you may need cooling system repairs, which...
      $215.00$172.00
      # 53268564
    • Metrix® Aluminum Radiator
      (0 reviews)
      Chevy Silverado 2003, Aluminum Radiator by Metrix®. Has your temperature gauge needle been creeping up? Are you seeing green puddles on the ground under your vehicle? If so, you may need cooling system repairs, which should not be...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $225.45from $180.36 - $269.43
      # 8615152
    • Replace® Radiator Fan Shroud
      (0 reviews)
      Chevy Silverado 2003, Radiator Fan Shroud by Replace®. The radiator fan shroud is an enclosure that mounts to and surrounds the radiator, with an opening at the other side just big enough for the cooling fan. The shroud ensures...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $20.50from $16.40 - $34.33
      # 6892371
    • Sherman® Radiator Fan Shroud
      (0 reviews)
      Chevy Silverado Extended Cab / Crew Cab / Regular Cab 2003, Radiator Fan Shroud by Sherman®. Make your vehicle perfect in every detail with Sherman products designed with ultimate quality and durability in mind. Reliable function...
      Constructed to deliver trouble-free performanceMade from quality materials to provide maximum reliability
      $24.59from $19.67 - $39.20
      # 34638306
    • Bosch® Water Pump
      (0 reviews)
      Chevy Silverado 2003, Water Pump by Bosch®. Restore your vehicle's cooling system to proper working order, and minimize the risk of premature failure, by installing a Bosch 100% New Water Pump. Bosch Water Pumps are designed to...
      100% new for maximum cooling and optimal performanceBuilt for extremes of heat, cold and high demand
      $44.16$35.33
      # 50373713
    • Pronto® Water Pump
      (0 reviews)
      Chevy Silverado 2003, Water Pump by Pronto®. This water pump is built in an ISO (International Organization for Standardization) certified factory to meet standards of fit, form, and operation. It features premium internal...
      Sturdy internal structure sets Pronto Water Pumps apart from the competition and delivers dependable and durable performanceCastings are designed and machined for precise fit of all components and maximum cooling capacity
      $40.70from $32.56 - $108.06
      # 20220023
    • Beck Arnley® Water Pump
      (0 reviews)
      Chevy Silverado 2003, Water Pump by Beck Arnley®, with Metal Impeller. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import...
      OE quality products from top original equipmentTop quality materials
      $206.39$165.11
      # 35829554
    • Gates® Standard Water Pump
      (0 reviews)
      Chevy Silverado 2003, Standard Water Pump by Gates®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $42.26from $33.81 - $106.93
      # 49166955
    • Airtex® Engine Water Pump
      (0 reviews)
      Chevy Silverado 2003, Engine Water Pump by Airtex®. Use 1 per Car. This water pump is engineered by the experts at Airtex to keep the cooling system of your vehicle running optimally. Each pump is designed by an OE manufacturer to...
      Precision-ground and permanently lubricated unitized bearing assembliesUnitized seals for superior protection against leakage and contamination
      $29.61from $23.69 - $79.00
      # 52149389
    • Cardone® Engine Water Pump
      (0 reviews)
      Chevy Silverado 2003, Engine Water Pump by Cardone®. 100% leak testing and hub-pull testing ensures reliable performance. O.E.-supplied NEW unitized seals ensure long-lasting, trouble-free performance. Unlike other aftermarket...
      50-state emissions street legalThe finest quality at a great price
      $38.19from $30.55 - $75.79
      # 52042460
    • GMB® Water Pump
      (0 reviews)
      Chevy Silverado 2003, Water Pump by GMB®. Has your temperature gauge needle been creeping up? Are you seeing green puddles on the ground under your vehicle? If so, you may need cooling system repairs, which should not be put off,...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $74.36from $59.49 - $125.19
      # 7894209
    • Gates® Heavy Duty Thermostat
      (0 reviews)
      Chevy Silverado 4.8L / 5.3L / 6.0L with GM Replacement Water Pump 2003, Heavy Duty Thermostat by Gates®. 186 Degree. Includes Seal. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the...
      $11.80$9.44
      # 20757976
    • Gates® OE Type Thermostat
      (0 reviews)
      Chevy Silverado 2003, OE Type Thermostat by Gates®. Includes Seal. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $8.33from $6.66 - $24.21
      # 20766517
    • Gates® Premium Thermostat
      (0 reviews)
      Chevy Silverado 2003, Premium Thermostat by Gates®. 195 Degree. Includes Seal. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste...
      $11.65from $9.32 - $9.37
      # 20766522
    • Stant® Heavy-Duty Thermostat
      (0 reviews)
      Chevy Silverado 4.8L / 5.3L / 6.0L 2003, Heavy-Duty Thermostat by Stant®. OE Temperature. 186 Degree. Seal Included. Packaged in a Box. Get fast engine warm-up and dependable engine operating temperature with a Stant thermostat....
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $11.40$9.12
      # 21861777
    • Stant® OE Type Thermostat
      (0 reviews)
      Chevy Silverado 2003, OE Type Thermostat by Stant®. OE Temperature. Seal Included. Get fast engine warm-up and dependable engine operating temperature with a Stant thermostat. Stant’s exclusive ELAC® Thermostat Cutaway heat...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $7.48from $5.98 - $24.15
      # 42433450
    • Stant® Premium Thermostat
      (0 reviews)
      Chevy Silverado 2003, Premium Thermostat by Stant®. OE Temperature. 195 Degree. Seal Included. Packaged in a Box. Get fast engine warm-up and dependable engine operating temperature with a Stant thermostat. Stant’s exclusive...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $11.03from $8.82 - $9.46
      # 21929721
    • Dorman® Thermostat Bypass Pipe
      (0 reviews)
      Chevy Silverado 6.6L 2003, Thermostat Bypass Pipe by Dorman®. Material: Steel. Length: 9". Inlet: 0.75" ID, 1.72" OD. Outlet: 0.83" ID, 0.98" OD. Maximum Pressure Rating: 100 psi. Re-engineered to address common failure points in...
      Direct replacement for a proper fit every timeHoses slide on for easy installation
      $34.36$27.49
      # 34099273
    • Genuine® Cooling Hose
      (0 reviews)
      Chevy Silverado 2003, Cooling Hose by Genuine®. Has your temperature gauge needle been creeping up? Are you seeing green puddles on the ground under your vehicle? If so, you may need cooling system repairs, which should not be put...
      $64.18$51.34
      # 44726240
    • Dayco® 90 Degree Molded Coolant Hose
      (0 reviews)
      Chevy Silverado 2003, 90 Degree Molded Coolant Hose by Dayco®. Designed with a molded 90 Degree elbow, this high quality coolant hose will precisely fit your engine compartment configuration. Thanks to its knitted reinforcement and...
      Constructed with a molded 90 Degree elbow to fit the engine compartment configurationOE quality and performance at an affordable price
      $12.24from $9.79 - $16.60
      # 24617418
    • Dayco® Curved Branched Radiator Hose (Lower)
      (0 reviews)
      Chevy Silverado 2003, Curved Branched Radiator Hose by Dayco®. Designed as the aftermarket replacement for the OE curved branched hose, this product ensures a precise fit, OE quality and performance. Its maximum resistance to oil,...
      Designed as the OE replacementOE quality and performance at an affordable price
      $42.43from $33.94 - $52.23
      # 57915861
    • Dayco® Curved Radiator Hose
      (0 reviews)
      Chevy Silverado 2003, Curved Radiator Hose by Dayco®. Replace your cracked, spongy, worn out, or damaged radiator hose with this Dayco product manufactured to meet the highest standards required for OEM hose replacements. To ensure...
      Designed as the OE replacementOE quality and performance at an affordable price
      $10.50from $8.40 - $19.33
      # 24617392
    • Gates® Radiator Molded Coolant Hose
      (0 reviews)
      Chevy Silverado 2003, Radiator Molded Coolant Hose by Gates®. Gates molded coolant hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
      Recommended for upper, lower, by-pass, heater and other coolant hose applicationsHeat and ozone resistant cover
      $19.86from $15.89 - $65.57
      # 20795181
    • Continental Elite® Hy-T™ Black Heater By-Pass Hose
      (0 reviews)
      Chevy Silverado 2003, Hy-T™ Black Heater By-Pass Hose by Continental Elite®. Use 1 per Car. This hose is highly resistant to antifreeze coolants and underhood temperatures. Tube and cover are manufactured from EPDM rubber with...
      Black Versigard EPDM rubber tube and coverReinforced with 2-spiral synthetic
      $31.64from $25.31 - $36.82
      # 41578508
    • Continental Elite® Molded Engine Coolant By-Pass Hose
      (0 reviews)
      Chevy Silverado 2003, Molded Engine Coolant By-Pass Hose by Continental Elite®. Use 1 per Car. This molded hose follows OE design and is pre-shaped for a precise fit. EPDM rubber tube and cover provide superior resistance to heat,...
      Original equipment configuration ensures a perfect fitPre-shaped to fit your vehicle
      $8.83from $7.06 - $15.55
      # 41578454
    • Continental Elite® Molded Radiator Hose
      (0 reviews)
      Chevy Silverado 2003, Molded Radiator Hose by Continental Elite®. Use 1 per Car. These Molded Radiator Hoses maintain full flow through tight bends, reduce stress on radiator connections, and ensure easy application. EPDM rubber...
      Original equipment configuration ensures a perfect fitPre-shaped to fit your vehicle
      $11.56from $9.25 - $63.11
      # 41578509
    • MacKay® Radiator Hose
      (0 reviews)
      Chevy Silverado 2003, Radiator Hose by MacKay®. Has your temperature gauge needle been creeping up? Are you seeing green puddles on the ground under your vehicle? If so, you may need cooling system repairs, which should not be put...
      $39.76from $31.81 - $39.37
      # 8038614
    • Gates® Engine Cooling System Tester Adapter
      (0 reviews)
      Chevy Silverado 2003, Engine Cooling System Tester Adapter by Gates®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $45.25$36.20
      # 48482367
    • Gates® Radiator Cap Tester Adapter
      (0 reviews)
      Chevy Silverado 2003, Radiator Cap Tester Adapter by Gates®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $45.55$36.44
      # 49063450
    • Gates® Replacement Radiator Cap
      (0 reviews)
      Chevy Silverado 2003, Replacement Radiator Cap by Gates®. 15 psi Pressure Rating. All radiator pressure caps are constructed of corrosion-resistant, heavy-gauge metal. This assures long service life and accurate control of...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $9.15$7.32
      # 49063451
    • Stant® Cooling System Tester Adapter
      (0 reviews)
      Chevy Silverado 2003, Cooling System Tester Adapter by Stant®. Adapters are needed to connect the Stant Cooling System Tester to the cooling system on most vehicles. These adapters provide a tight seal between tester and filler...
      Enables connection of Stant Cooling System tester to cooling systemProvides easy connection and leak-free seal for accurate system testing
      $45.90$36.72
      # 21859226
    • Stant® OE Type Radiator Cap
      (0 reviews)
      Chevy Silverado 2003, OE Type Radiator Cap by Stant®. 15 psi Pressure Rating. Packaged in a Box. Test your radiator cap whenever you service the cooling system. If you’re in need of a replacement you can prevent engine...
      Meets Original Equipment specificationsThe SWIV-EL design allows the cap to be installed and removed much easier than conventional radiator caps
      $9.30$7.44
      # 21944519
    • Stant® Radiator Cap Tester Adapter
      (0 reviews)
      Chevy Silverado 2003, Radiator Cap Tester Adapter by Stant®. A faulty radiator cap can allow your engine to overheat. Testing the cap should be part of every thorough cooling system test. This adapter enables the Stant Cooling...
      Enables connection of Stant Cooling System tester to radiator capEnables detection of faulty radiator cap before engine overheating occurs
      $46.20$36.96
      # 21863221
    • A1 Cardone® Remanufactured Engine Water Pump Housing
      (0 reviews)
      Chevy Silverado 6.6L 2003, Remanufactured Engine Water Pump Housing by A1 Cardone®. With Gasket, Cover, Instruction Sheet. Without Installation Hardware.
      50-state emissions street legalThe finest quality at a great price
      $65.81$52.65
      # 52041832
    • Dorman® Water Outlet
      (0 reviews)
      Chevy Silverado V6 2003, Water Outlet by Dorman®. With 2 Bolt Holes 0.353" Diameter. With 90 Degrees Housing Neck. Diameter: 1.263". Material: Steel. Without Bleeder Valve. Without Gasket. Without O-Ring. Bolts not Included. This...
      Direct replacement for a proper fit every timeHoses slide on for easy installation
      $27.59$22.07
      # 16856567
    • Gates® Thermostat Water Outlet Assembly
      (0 reviews)
      Chevy Silverado 4.8L / 5.3L / 6.0L with OE or Most Aftermarket Water Pumps 2003, Thermostat Water Outlet Assembly by Gates®. 186 Degree. Includes Seal. When you’re low on oil, coolant or some other fluid, you may be tempted to...
      $23.93$19.14
      # 48482359
    • Stant® Thermostat Water Outlet Assembly
      (0 reviews)
      Chevy Silverado 4.8L / 5.3L / 6.0L 2003, Thermostat Water Outlet Assembly by Stant®. OE Temperature. 186 Degree. Seal Included. Packaged in a Box. Get fast engine warm-up and dependable engine operating temperature with a Stant...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $25.13$20.10
      # 21925475
    • Genuine® Bypass Hose
      (0 reviews)
      Chevy Silverado 2003, Bypass Hose by Genuine®. Has your temperature gauge needle been creeping up? Are you seeing green puddles on the ground under your vehicle? If so, you may need cooling system repairs, which should not be put...
      $14.30$11.44
      # 8819249
    • Replace® Radiator Support
      (0 reviews)
      Chevy Silverado 2003, Radiator Support by Replace®. The radiator contains a series of small tubes through which coolant flows from the engine. A network of fins surrounds the tubes. Airflow through the grille when the vehicle is at...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $64.30from $51.44 - $276.38
      # 45878966
    • Dorman® Radiator Drain Petcock
      (0 reviews)
      Chevy Silverado 1500 / 1500 HD / 2500 HD / 3500 2003, Black Plastic Radiator Drain Petcock by Dorman®, 1 Piece. Package Type: Card. 5/8 x 18. Overall Length: 1.43". Overall Width: 0.608". This is an aftermarket part that replaces...
      Available in several styles, including standard, screw-in, and push-in with captive threadDirect replacement Radiator Drain Petcocks available (where applicable) to ensure a proper fit
      $3.53$2.82
      # 31533217
    • Sherman® Radiator Support
      (0 reviews)
      Chevy Silverado 2003, Radiator Support by Sherman®. A radiator support not only keeps the radiator securely in place, but also provides mounting locations for several other key parts of a vehicle's front end and can affect the...
      Factory original quality at an affordable priceDirect fit replacement
      $98.30from $78.64 - $200.70
      # 34638301
    • Dorman® Water Pump Mounting Hardware Kit
      (0 reviews)
      Chevy Silverado V6 2003, Water Pump Mounting Hardware Kit by Dorman®. This is an aftermarket part that replaces factory OE # 11570082, 12552096. Either zinc-plated or coated with black oxide for corrosion resistance, the hardware...
      Comes with all necessary hardware to complete the repairRust-resistant
      $14.34$11.47
      # 16726763



    Guides & Articles
    "Antifreeze" is a chemical, primarily consisting of ethylene glycol, which when mixed with water serves to lower the freezing point and raise the boiling point of the mixture. Traditionally, the combination of antifreeze and water is known as "coolant". As opposed to air-cooled vehicles which rely on fan-driven air blowing over engine components, water-cooled...
    Everyone knows that your vehicle's engine needs its oil and filter changed at regular intervals. Most folks also know that there are other items which need regular servicing and replacement, such as the air and fuel filters. But what about the cooling system? The fact is, a modern vehicle's cooling system does such a great job at preventing an engine from...
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    2003 Chevy Silverado Models
    • 2003 Chevy Silverado 1500 Base Performance Engine Cooling
    • 2003 Chevy Silverado 1500 LS Performance Engine Cooling
    • 2003 Chevy Silverado 1500 LT Performance Engine Cooling
    • 2003 Chevy Silverado 1500 SS Performance Engine Cooling
    • 2003 Chevy Silverado 1500 WT Performance Engine Cooling
    • 2003 Chevy Silverado 1500 HD LS Performance Engine Cooling
    • 2003 Chevy Silverado 1500 HD LT Performance Engine Cooling
    • 2003 Chevy Silverado 2500 Base Performance Engine Cooling
    • 2003 Chevy Silverado 2500 LS Performance Engine Cooling
    • 2003 Chevy Silverado 2500 LT Performance Engine Cooling
    • 2003 Chevy Silverado 2500 HD Base Performance Engine Cooling
    • 2003 Chevy Silverado 2500 HD LS Performance Engine Cooling
    • 2003 Chevy Silverado 2500 HD LT Performance Engine Cooling
    • 2003 Chevy Silverado 3500 Base Performance Engine Cooling
    • 2003 Chevy Silverado 3500 LS Performance Engine Cooling
    • 2003 Chevy Silverado 3500 LT Performance Engine Cooling