2003 GMC Sierra Performance Engine Cooling

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    • (0 reviews)
      # mpn2264848
      GMC Sierra 6.6L 2003, Performance Aluminum Radiator by Mishimoto®. The Mishimoto performance aluminum radiator is designed and engineered to maximize cooling efficiency, boost engine functions, and most importantly protect your car...
      Full Aluminum Construction including durable, TIG-welded end tanksIncreased fluid capacity and optimal heat dissipation
      $765.00
    • (0 reviews)
      # 608820918
      GMC Sierra 2003, Direct-Fit Crossflow Module by Be Cool®. Be Coolant is an Extended-Life, Super Duty Coolant & Antifreeze that is ideal for all applications. Be Coolant features a new-generation earth-friendly biodegradable,...
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $1,399.99 - $1,699.99
    • (0 reviews)
      # 288107860
      GMC Sierra 2003, Performance Direct Fit Combo Unit Radiator with Transmission Cooler by Griffin Thermal®. Includes: Shroud, Fan(s), Wiring, Temp Sensor, Rad Cap. Solve your high heat problems with top-of-the-line products by...
      High quality at an affordable priceExpertly made from premium materials
      $792.13 - $1,299.71
    • (0 reviews)
      # 608878658
      GMC Sierra 2003, Direct-Fit Crossflow Radiator by Be Cool®. Be Coolant is an Extended-Life, Super Duty Coolant & Antifreeze that is ideal for all applications. Be Coolant features a new-generation earth-friendly biodegradable,...
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $699.99 - $943.99
    • (1 review)
      # 193176169
      GMC Sierra 4.8L 2003, Jetstreme II™ Low Profile Dual Electric Fan by Maradyne®. Diameter: 16". 2600cfm. Current Drow: 24.8 Amp. Watt Motor: 160W. With S-Blade. Reversible rotation. 26" Width x 15" Height. Finish: Black....
      Low profile allows for turbo applicationsReversible design for pusher or puller applications
      $288.34 - $349.99
    • (0 reviews)
      # mpn1852087
      GMC Sierra 4.8L / 6.0L / 8.1L 2003, Mach Two Extreme™ 16" Dual Electric Fan by Maradyne®. Diameter: 16". 4320cfm. Current Drow: 35.4 Amp. Watt Motor: 225W. Includes: Includes: Harness Part # MFA100, MFA101, MFA111. Reversible...
      Puller service only, not for use in front of radiatorDual fan, assembly only
      $453.32
    • (0 reviews)
      # mpn1711339
      GMC Sierra 1500 4.3L 2003, Lo-Profile Direct Fit Electric Fan by Flex-a-Lite®. With Adjustable Thermostat Controller. Diameter: 12". Keep your engine cool and free up some extra horsepower and torque. The fan makes quicker cool...
      12-1/8" Fan Diameter1250 CFM of airflow
      $208.34
    • (0 reviews)
      # 331294100
      GMC Sierra 2003, Trimline Reversible Electric Fan by Flex-a-Lite®. Diameter: 14". Size: 13.75"H x 14.25"W x 3.5"D. Voltage: 12 Volt. Finish: Black. Size: 13.75" H x 14.25" W x 3.5" D. Rounded Up Depth: 4". The Trimline electric...
      Can be used as a primary or an auxiliary fanReversible design allows for use in pusher or puller applications
      $126.03
    • (0 reviews)
      # 23632179
      GMC Sierra 2003, Rapid-Cool™ Reversible Fan Kit by Hayden®. Diameter: 14". Current Drow: 11.5. 3 5/8" Depth. This product can be used for either primary or add-on cooling. The Hayden Rapid-Cool fan features a thin, aerodynamic...
      Reversible push/pull operationThin, aerodynamic profile for applications with limited space
      $64.31
    • (0 reviews)
      # mpn3064649459
      GMC Sierra 2003, High Performance Cooling System Kit by Zirgo®. Now upgrading your stock fan or installing an ultra-high fCFM fan is easier than ever. Kits come with all you need to provide your vehicle with superior overheating...
      Detailed InstructionsHigh quality at an affordable price
      $208.05
    • (0 reviews)
      # 429191636
      GMC Sierra 2003, Water Pump Spacer Kit by Moroso®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
      High quality at an affordable priceBuilt to match your exact requirements
      $52.92 - $135.89
    • (0 reviews)
      # 262164731
      GMC Sierra 2003, 300 Series High Flow Electric Water Pump by Meziere Enterprises®. Flow Rate: 55 GPM. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from...
      +3
      $451.00 - $932.49
    • (0 reviews)
      # 450822351
      GMC Sierra 2003, Electric Water Pump by Proform®. Logo: without Logo. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      +2
      $168.86 - $245.51
    • (0 reviews)
      # 450828370
      GMC Sierra 2003, Mechanical Water Pump by Proform®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $100.33 - $141.08
    • (0 reviews)
      # 450799495
      GMC Sierra 2003, Officially Licensed GM Electric Water Pump by Proform®. Logo: With Logo. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality...
      Officially Licensed GMCarefully designed to improve the performance of your vehicle
      +3
      $240.55 - $306.66
    • (0 reviews)
      # 144995033
      GMC Sierra 2003, Hi-Performance Water Pump by PRW®. Material: Aluminum. Designed utilizing the latest technology, this product by PRW Industries features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $242.55 - $440.55
    • (0 reviews)
      # mpn1673985931
      GMC Sierra 6.6L 2003, Water Pump by Sinister Diesel®. Welded Water Pump. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will...
      High quality at an affordable priceBuilt to match your exact requirements
      $199.00
    • (0 reviews)
      # 84273711
      GMC Sierra 2003, Thermostat by JET®. Temperature: 180 Degree. Jet Low-Temp Thermostats increase horsepower and control engine temp by consistently metering water flow throughout the engine instead of simply cycling open/close,...
      Designed to reduce engine temperature and produce more horsepowerMade from stainless steel
      $55.46
    • (0 reviews)
      # 607981641
      GMC Sierra 2003, Fail Safe Series™ Engine Coolant Thermostat by MotoRad®. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is designed to lock in...
      Exclusive, patented designHigh quality Stainless Steel and Copper construction
      $10.55 - $16.27
    • (0 reviews)
      # 70413180
      GMC Sierra 2003, High-Flow Series™ Engine Coolant Thermostat with Seal by MotoRad®. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high...
      Made of stainless steelProvide increased flow
      $8.99 - $11.65
    • (0 reviews)
      # 383436419
      GMC Sierra 2003, Circulating Tank Heater by Kats Heaters®. Material: Aluminum Casting. Fluid Capacity: 26 - 40 quart. 12.5 Amps, 1500 Watts, 120V. The circulating tank heater is designed to keep the coolant in your engine warm....
      Thermostatically controlled 135° - 175°Uses versatile strap type mounting
      $95.17
    • (0 reviews)
      # 378905131
      GMC Sierra 6.6L 2003, Coolant Tank Kit by Wehrli Custom Fabrication®. WCFab Fabricated Aluminum Coolant Tanks are an excellent way to spice up your engine bay and compliment turbo kits and y-bridge kits. WCFab offer two different...
      Made to ensure the highest level of qualityPrecise engineering provides great longevity
      +39
      $320.16 - $400.20
    • (0 reviews)
      # 80947505
      GMC Sierra 6.6L 2003, 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", Hose 2 - 2.10"....
      Direct OEM fitManufactured from 100% high-grade silicone and heat-resistant embedded fibers
      $270.00
    • (0 reviews)
      # 492075540
      GMC Sierra 4.8L / 5.3L / 6.0L / 8.1L 2003, Fixed Water Neck by Meziere Enterprises®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality...
      High quality at an affordable priceExpertly made from premium materials
      +2
      $106.49 - $131.54
    • (0 reviews)
      # 492026559
      GMC Sierra 4.8L / 5.3L / 6.0L / 8.1L 2003, Coolant Thermostat Housing by Proform®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials,...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $15.09 - $18.99
    • (0 reviews)
      # 491978732
      GMC Sierra 4.8L / 5.3L / 6.0L / 8.1L 2003, Officially Licensed GM Coolant Thermostat Housing by Proform®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from...
      Officially Licensed GM ProductsCarefully designed to improve the performance of your vehicle
      $22.86 - $23.27
    • (0 reviews)
      # 492066578
      GMC Sierra 4.8L / 5.3L / 6.0L / 8.1L 2003, Filler Neck by Moroso®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely...
      High quality at an affordable priceBuilt to match your exact requirements
      $86.98 - $91.61
    • (0 reviews)
      # mpn3094313872
      GMC Sierra 6.6L Use a Stant Lev-R-Vent 16lbs 2003, Billet Radiator Neck by PPE®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it...
      Thoughtfully designed to match your diesel engine needsMade to help enhance the performance of your vehicle
      $22.49
    • (0 reviews)
      # mpn359113199
      GMC Sierra 4.8L / 5.3L / 6.0L 2003, Water Pump Pulley Shim Kit by Canton Racing®. This CANTON pulley shim kit is designed to compensate for the variances in different components to insure perfect belt alignment. This shim kit comes...
      Made from high-grade materialsProvides efficient performance
      $15.00
    • (0 reviews)
      # 566489096
      GMC Sierra 8.1L 2003, Water Pump Pulley by Trans-Dapt®. Material: Aluminum. Depth: 2.75". Outside Diameter: 6.25". Type: Double Groove. To keep your engine cool and improve your vehicle's performance, this product is just the right...
      Made to keep your engine running coolImproves your vehicle's performance
      $94.62 - $101.32
    • (1 review)
      # 102119726
      GMC Sierra 2003, Thermocap™ Radiator Cap by Mr. Gasket®. OEM Replacement. With Thermometer Built In. 16 PSI. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether...
      Brilliant triple-chrome platingPrevent boilovers
      +1
      $31.49 - $36.44
    • (0 reviews)
      # mpn1852077
      GMC Sierra 4.8L / 6.0L 2003, Mach Two Extreme™ Mounting Brackets by Maradyne®. Includes: Includes: Brackets, Hardware. Black Powder Coated Aluminum.
      Stamped steel bracketsPainted for corrosion resistance
      $75.28
    • (0 reviews)
      # 429160625
      GMC Sierra 2003, Remote Water Pump Adapter Kit by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make...
      In each kit two clear anodized adapters bolt onto where the water pump would normally reside on an engine. Allows the use of a remote water pumpIncludes 4 gaskets and 8 stainless steel cap screws. The 4 extra screws are to accommodate a front motor plate
      $86.84
    • (0 reviews)
      # mpn469957799
      GMC Sierra 2500 HD 6.6L 2003, Water Pump Housing Cover Gasket by Merchant Automotive®. If your engine is apart or out of the truck, replace this gasket. It can leak sometimes and its a bear to get to with stock downpipe in place....
      High quality at an affordable priceExpertly made from premium materials
      $7.26
    • (0 reviews)
      # mpn4160376244
      GMC Sierra Base / SLE / SLT / WT 6.0L 2003, Water Pump Gasket by Cometic Gasket®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials,...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $8.64
    • (0 reviews)
      # 566430190
      GMC Sierra 2003, Water Pump Adapters by Meziere Enterprises®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely...
      +2
      $56.38 - $81.43
    • (0 reviews)
      # 566417908
      GMC Sierra 2003, Water Pump Spacers by Meziere Enterprises®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
      +2
      $39.46 - $83.94
    • (0 reviews)
      # 566551559
      GMC Sierra 2003, Water Pump Bolt Kit by Tuff Stuff Performance®. From water pump bolt kits and water pump extension kits to various hose nipples and high flow thermostats, Tuff Stuff has all of the hard to find water pump accessories.
      Designed to take engine cooling to the next levelLightweight construction for maximum heat dissipation
      $8.94 - $25.35
    • (0 reviews)
      # 365170847
      GMC Sierra 2003, GM Original Equipment™ Engine Cooling Fan Blade by ACDelco®. Rotation: Counterclockwise. Fan Blade Material: Plastic. Blades Count: 9. ACDelco GM Original Equipment Fan Blades are designed to maintain the proper...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $37.77 - $53.39
    • (0 reviews)
      # mpn2874115218
      GMC Sierra 6.6L 2003, Engine Cooling Fan Blade by Spectra Premium®. Spectra Premium Radiator Fan Blade are engineered, developed and validated to meet Original Equipment (OE) requirements, to ensure a durable and quality product....
      OE style connector for plug & play installationManufactured with high quality components to reduce fan motor noise
      $65.77
    • (0 reviews)
      # 516024272
      GMC Sierra 2003, Cooling Fan Blade by Dorman®. Restore clutch-driven fans to original functioning and sustain proper engine operation with Dorman's Engine Cooling Fan Blade. Its construction features reinforcement that reduces...
      Helps to prevent engine overheatingDirect replacement for a proper fit every time
      $44.72 - $61.56
    • (0 reviews)
      # 231955123
      GMC Sierra 2003, Electric Fan Kit by Four Seasons®. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix it once and fix it right with Four Seasons.
      Motors Built and Tested to Quality SpecificationsIncludes Mounting Kit
      $76.06
    • (0 reviews)
      # mpn469957343
      GMC Sierra 2500 HD 6.6L 2003, Thermostat Kit by Merchant Automotive®. Build your ideal engine cooling system with superior Merchant Automotive cooling system parts that will help effectively carry away heat to prevent engine...
      High quality at an affordable priceExpertly made from premium materials
      $121.39
    • (0 reviews)
      # 138727903
      GMC Sierra 2003, GM Original Equipment™ Engine Coolant Thermostat by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $10.00 - $34.29
    • (0 reviews)
      # 241436047
      GMC Sierra 2003, Engine Coolant Hose by Genuine®. Location: Reservoir to Radiator. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this...
      Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating
      $104.83
    • (0 reviews)
      # 306926506
      GMC Sierra 2003, OEM Replacement Radiator by Mishimoto®. This radiator is a direct OEM replacement for your old stock unit. There is no need to bend, cut, or modify anything to ensure a proper fitment in your vehicle. This radiator...
      Ideal replacement for an aged, clogged, or leaking stock radiatorFunctions with all factory engine bay equipment
      $143.25 - $180.75
    • (0 reviews)
      # 71658361
      GMC Sierra 2003, GM Original Equipment™ Radiator by ACDelco®. The radiator is the heart of a vehicle’s cooling system. So, when it comes to replacing a worn radiator, you need a product that will match the original factory part...
      ReliableLightweight (positive heat-transfer-to-weight ratio)
      $139.92 - $390.85
    • (0 reviews)
      # 32459888
      GMC Sierra 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, or...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $99.88 - $291.10
    • (2 reviews)
      # 48092750
      GMC Sierra 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 can overheat. Before you end up with expensive...
      Highly trained in-house staff of engineers & designersAll models are validated for fit, form, and function before released into the market
      $104.34 - $498.50
    • (0 reviews)
      # 22127499
      GMC Sierra 2003, Radiator by APDI®. 1. Construction: Plastic Tank Aluminum. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $90.28 - $284.67
    • (0 reviews)
      # 306926546
      GMC Sierra 2003, TYC™ Radiator by Koyorad®. 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. Designed to be identical to the...
      OE quality at an affordable priceDirect replacement
      $94.54 - $169.65
    • (0 reviews)
      # 306926613
      GMC Sierra 2003, Radiator by Sherman®. Restore the OEM-specified cooling ability and be sure that your engine runs optimally and is protected from possible overheating and damage. Trust Sherman and get a durable replacement...
      Factory original quality at less costDirect fit replacement
      $118.70 - $190.76
    • (0 reviews)
      # 85813240
      GMC Sierra 2003, Radiator by Denso®. Denso is a leading supplier of radiators to OE car makers around the world. Manufacturers rely on Denso quality and innovation to remain on the leading edge of engine cooling technology. Denso...
      Factory original quality for lessDirect fit replacement
      $88.40 - $128.88
    • (0 reviews)
      # 98194459
      GMC Sierra 2003, Radiator by Koyo®. Plastic Tank with Aluminum Core. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $132.76
    • (0 reviews)
      # 8617742
      GMC Sierra 2003, Radiator by Metrix®. This top-grade Metrix product is a great way to go if you want to ensure reliable operation of your automobile. It is made utilizing high-grade materials and the latest equipment to deliver OEM...
      Designed to help ensure reliable operation of your vehicleProven to deliver durable and efficient performance
      $136.43 - $210.05
    • (0 reviews)
      # 79499277
      GMC Sierra 2003, Radiator by K-Metal®. 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, or...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $103.56 - $180.27
    • (0 reviews)
      # mpn2639498947
      GMC Sierra 4.3L Standard Transmission 2003, Radiator by OSC Automotive®. Core Size: 17 1/2" x 28 1/4" x 1". Keep your engine cool with premium grade OSC cooling parts. Made to meet or exceed OE specifications, they’re designed to...
      This product is made of high-quality materials to serve you for years to come.Designed using state-of-the-art technology and with customers in mind.
      $87.76
    • (0 reviews)
      # 502357817
      GMC Sierra 2003, HVAC Blower Motor by VDO®. The VDO brand product category offers OE quality blower motors, engine cooling fan motors and complete cooling fan assemblies. Professional technicians and DIYers alike want the highest...
      Provides exceptional durabilityDesigned to comply with high-quality standards
      $28.03 - $62.69
    • (0 reviews)
      # 334445759
      GMC Sierra 2003, Engine Cooling 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
      $21.61 - $70.15
    • (0 reviews)
      # 365171138
      GMC Sierra 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 that will meet your exacting demands and...
      Constructed to deliver trouble-free performanceMade from quality materials to provide maximum reliability
      $13.45 - $28.89




    Guides & Articles

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      Servicing Your Vehicle's Cooling System
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    2003 GMC Sierra Performance Engine Cooling Reviews

    Average rating:  4.5  4.5 - 2 reviews
    4.5 of 5
    Derale
    Derale rocks! When purchasing a product, I was guided by the price, so I chose this particular product manufacturer. product quality at altitude. I will recommend to friends.
    MPosted by Mr (San Jose, CA) / October 20, 2015
    2013 Dodge Ram
    Was this review helpful for you? Yes
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    2003 GMC Sierra Models
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