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Replacement and OEM Parts for 2003 Chevrolet Express 1500 Cooling Systems, Fans, Radiators & Components

2003 Chevrolet Express 1500 Cooling Systems, Fans, Radiators & Components

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Engine & Drivetrain

147 products about 2003 Chevrolet Express 1500 Cooling Systems, Fans, Radiators & Components found

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  • OEM 2003 Chevrolet Express 1500 Fan Switch Diagram - 15326386
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Fan Switch

    PartNumber: 15326386
    OEM 2003 Chevrolet Express 1500 Fan Switch - 15326386
    Product Specifications
    • Notes: Express, Savana; 4.3l
    • Item Dimensions: 2.9 x 1.2 x 0.8 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25036979, 12146312
    • Part Description: 2003 Chevrolet Express 1500 Fan Switch
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
    $27.05 MSRP: $51.06
    You Save: $24.01 (48%)
  • OEM 2003 Chevrolet Express 1500 Water Pump Assembly Gasket Diagram - 12630223
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Water Pump Assembly Gasket

    PartNumber: 12630223
    OEM 2003 Chevrolet Express 1500 Water Pump Assembly Gasket - 12630223
    Product Specifications
    • Notes: 4.8, 5.3, & 6.0 Liter
    • Item Dimensions: 4.6 x 3.3 x 0.2 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12580035, 12588372, 12559271, 12610311
    • Part Description: 2003 Chevrolet Express 1500 Water Pump Assembly Gasket
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    $6.96 MSRP: $12.59
    You Save: $5.63 (45%)
  • OEM 2003 Chevrolet Express 1500 Water Pump Assembly Gasket Diagram - 12630223
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Water Pump Assembly Gasket

    PartNumber: 12630223
    OEM 2003 Chevrolet Express 1500 Water Pump Assembly Gasket - 12630223
    Product Specifications
    • Notes: 4.8, 5.3, & 6.0 Liter
    • Item Dimensions: 4.6 x 3.3 x 0.2 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12580035, 12588372, 12559271, 12610311
    • Part Description: 2003 Chevrolet Express 1500 Water Pump Assembly Gasket
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    $6.96 MSRP: $12.59
    You Save: $5.63 (45%)
  • OEM 2003 Chevrolet Express 1500 Cap, Radiator Filler Diagram - 15042975
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Cap, Radiator Filler

    PartNumber: 15042975
    OEM 2003 Chevrolet Express 1500 Cap, Radiator Filler - 15042975
    Product Specifications
    • Notes: Express, Savana; 2003-14; 4.8, 5.3, & 6.0 Liter
    • Other Names: Filler Cap, Radiator Cap, Reservoir Cap
    • Item Dimensions: 2.5 x 2.5 x 1.6 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 Chevrolet Express 1500 Cap, Radiator Filler
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    $12.61 MSRP: $21.70
    You Save: $9.09 (42%)
  • Dorman OE Solutions Inlet Outlet Oil Cooler Line for 2003 Chevrolet Express 1500 - 625-175

    Dorman® OE Solutions Inlet Outlet Oil Cooler Line for 2003 Chevrolet Express 1500

    PartNumber: 625-175
    Product Specifications
    • Color or Finish: Natural
    • Hose Attachment End 1: Block Connector
    • Hose Attachment End 2: Quick Disconnect
    • Hose Material: Rubber/Metal
    • Hose Overall Length (In): 53.8"
    • OE Part Number: 15074204
    • UPC: 019495063001
    • Part Description: 2003 Chevrolet Express 1500 OE Solutions Inlet Outlet Oil Cooler Line
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    $67.16
  • OEM 2003 Chevrolet Express 1500 Thermostat Unit Diagram - 12571261
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Thermostat Unit

    PartNumber: 12571261
    OEM 2003 Chevrolet Express 1500 Thermostat Unit - 12571261
    Product Specifications
    • Notes: Express, Savana; 4.8l, 5.3l, 6.0l; Includes Thermostat.; 4.8, 5.3, & 6.0 Liter
    • Other Names: Thermostat Housing, Thermostat Unit
    • Item Dimensions: 6.5 x 4.3 x 4.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12561157, 12562740
    • Part Description: 2003 Chevrolet Express 1500 Thermostat Unit
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS | 8 Cyl 5.3 L GAS
    $41.61 MSRP: $78.51
    You Save: $36.90 (48%)
  • OEM 2003 Chevrolet Express 1500 Thermostat Unit Diagram - 12571261
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Thermostat Unit

    PartNumber: 12571261
    OEM 2003 Chevrolet Express 1500 Thermostat Unit - 12571261
    Product Specifications
    • Notes: Express, Savana; 4.8l, 5.3l, 6.0l; Includes Thermostat.; 4.8, 5.3, & 6.0 Liter
    • Other Names: Thermostat Housing, Thermostat Unit
    • Item Dimensions: 6.5 x 4.3 x 4.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12561157, 12562740
    • Part Description: 2003 Chevrolet Express 1500 Thermostat Unit
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS | 8 Cyl 5.3 L GAS
    $41.61 MSRP: $78.51
    You Save: $36.90 (48%)
  • OEM 2003 Chevrolet Express 1500 Thermostat Unit Diagram - 12571261
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Thermostat Unit

    PartNumber: 12571261
    OEM 2003 Chevrolet Express 1500 Thermostat Unit - 12571261
    Product Specifications
    • Notes: Express, Savana; 4.8l, 5.3l, 6.0l; Includes Thermostat.; 4.8, 5.3, & 6.0 Liter
    • Other Names: Thermostat Housing, Thermostat Unit
    • Item Dimensions: 6.5 x 4.3 x 4.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12561157, 12562740
    • Part Description: 2003 Chevrolet Express 1500 Thermostat Unit
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS | 8 Cyl 5.3 L GAS
    $41.61 MSRP: $78.51
    You Save: $36.90 (48%)
  • OEM 2003 Chevrolet Express 1500 Thermostat Unit Diagram - 12571261
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Thermostat Unit

    PartNumber: 12571261
    OEM 2003 Chevrolet Express 1500 Thermostat Unit - 12571261
    Product Specifications
    • Notes: Express, Savana; 4.8l, 5.3l, 6.0l; Includes Thermostat.; 4.8, 5.3, & 6.0 Liter
    • Other Names: Thermostat Housing, Thermostat Unit
    • Item Dimensions: 6.5 x 4.3 x 4.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12561157, 12562740
    • Part Description: 2003 Chevrolet Express 1500 Thermostat Unit
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS | 8 Cyl 5.3 L GAS
    $41.61 MSRP: $78.51
    You Save: $36.90 (48%)
  • Dorman Engine Coolant Thermostat Housing Assembly for 2003 Chevrolet Express 1500 - 902-2836

    Dorman® Engine Coolant Thermostat Housing Assembly for 2003 Chevrolet Express 1500

    PartNumber: 902-2836
    Product Specifications
    • Notes: wo/Water Pump Casting# 12562459; Use If Original Water Pump Replaced w/Later Design; Includes Thermostat
    • OE Part Number: 12600172, 12581594, 12568911, 8125815940, 8125689110, 8126001720
    • Package Contents: 1 Thermostat Housing
    • UPC: 889245054883
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Thermostat Housing Assembly
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $39.33
  • Denso Engine Coolant Radiator for 2003 Chevrolet Express 1500 - 221-9149

    Denso® Engine Coolant Radiator for 2003 Chevrolet Express 1500

    PartNumber: 221-9149
    Product Specifications
    • Core Height: 16.8110"
    • Core Thickness: 1.0236"
    • Core Width: 30.5118"
    • Inlet Diameter: 1.3110"
    • Outlet Diameter: 1.5551"
    • UPC: 042511227217
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Radiator
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $158.70
  • Gates Engine Coolant Standard Water Pump for 2003 Chevrolet Express 1500 - 45006

    Gates® Engine Coolant Standard Water Pump for 2003 Chevrolet Express 1500

    PartNumber: 45006
    Product Specifications
    • Notes: w/Thermostat & Housing
    • Housing: Cast Aluminum
    • Impeller Material: Stamped Steel
    • Number of Outlets: 2
    • Rotation of Impeller: Reverse
    • Timing Belt Driven: No
    • UPC: 072053781632
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Standard Water Pump
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $110.08
  • Delphi Coolant Temperature Sensor for 2003 Chevrolet Express 1500 - TS10076

    Delphi® Coolant Temperature Sensor for 2003 Chevrolet Express 1500

    PartNumber: TS10076
    Product Specifications
    • Connector Gender: Female
    • Connector Quantity: 1
    • Connector Shape: Oval
    • Mounting Type: Threaded Nut
    • OE Part Number: 15369305
    • Terminal Gender: Male
    • Terminal Quantity: 2
    • Terminal Type: Pin
    • UPC: 689604110416
    • Wiring Harness Included: No
    • Part Description: 2003 Chevrolet Express 1500 Coolant Temperature Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $20.68
  • Dorman Engine Coolant Recovery Tank for 2003 Chevrolet Express 1500 - 603-078

    Dorman® Engine Coolant Recovery Tank for 2003 Chevrolet Express 1500

    PartNumber: 603-078
    Product Specifications
    • Cap Type: Twist
    • Color: White
    • Material: Plastic
    • Mount Hole Quantity: 1
    • OE Part Number: 15060681, 15209981, 25739061, 25865663
    • Pressurized: No
    • UPC: 019495453154
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Recovery Tank
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $42.71
  • Four Seasons Auxiliary Engine Cooling Fan for 2003 Chevrolet Express 1500 - 37140

    Four Seasons® Auxiliary Engine Cooling Fan for 2003 Chevrolet Express 1500

    PartNumber: 37140
    Product Specifications
    • Notes: Universal Fit Super Duty Electric Puller Auxiliary Fan. Add on fans used to supplement the primary Eng cooling fan. Incls mounting hardware. Controls not Incld.;Universal Fit Super Duty Electric Puller Primary & Auxiliary Fan. Add on fans used to supplement the primary Eng cooling fan. Incls mounting hardware. Controls not Incld.
    • Material: Plastic
    • Performance Rated: Yes
    • SDS Required: No (135233618)
    • UPC: 096361089945
    • Part Description: 2003 Chevrolet Express 1500 Auxiliary Engine Cooling Fan
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $91.74
  • Gates Engine Coolant Standard Water Pump for 2003 Chevrolet Express 1500 - 45005

    Gates® Engine Coolant Standard Water Pump for 2003 Chevrolet Express 1500

    PartNumber: 45005
    Product Specifications
    • Notes: w/o Thermostat & Housing; May Req Thermostat/Housing Replacement
    • Housing: Cast Aluminum
    • Impeller Material: Stamped Steel
    • Number of Outlets: 4
    • Rotation of Impeller: Reverse
    • Timing Belt Driven: No
    • UPC: 072053781625
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Standard Water Pump
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $87.70
  • Dayco Engine Coolant Water Pump for 2003 Chevrolet Express 1500 - DP998

    Dayco® Engine Coolant Water Pump for 2003 Chevrolet Express 1500

    PartNumber: DP998
    Product Specifications
    • Notes: Serpentine Belt Driven; Thermostat Bore Dia 47mm
    • UPC: 036687990730
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Water Pump
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $114.72
  • Delphi Coolant Temperature Sensor for 2003 Chevrolet Express 1500 - TS10075

    Delphi® Coolant Temperature Sensor for 2003 Chevrolet Express 1500

    PartNumber: TS10075
    Product Specifications
    • Connector Gender: Female
    • Connector Quantity: 1
    • Connector Shape: Oval
    • Mounting Type: Threaded Nut
    • Terminal Gender: Male
    • Terminal Quantity: 2
    • Terminal Type: Pin
    • UPC: 689604110423
    • Wiring Harness Included: No
    • Part Description: 2003 Chevrolet Express 1500 Coolant Temperature Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    $18.49
  • Gates Engine Coolant Molded Radiator Hose for 2003 Chevrolet Express 1500 - 22751

    Gates® Engine Coolant Molded Radiator Hose for 2003 Chevrolet Express 1500

    PartNumber: 22751
    Product Specifications
    • Branch Quantity: 0
    • Contains Spring: No
    • End 1 Inside Diameter: 1.28 in
    • End 2 Inside Diameter: 1.28 in
    • Material: EPDM
    • Modular Hose: No
    • Molded: Yes
    • Number of Quick Connect Fittings: 0
    • OE Part Number: 48059
    • UPC: 072053787283
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Molded Radiator Hose
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    $57.74
  • Dorman Engine Cooling Fan Blade for 2003 Chevrolet Express 1500 - 620-602

    Dorman® Engine Cooling Fan Blade for 2003 Chevrolet Express 1500

    PartNumber: 620-602
    Product Specifications
    • Blades Count: 11
    • Color: White
    • Diameter: 19"
    • Installation Hardware Included: No
    • Item Grade: Standard Replacement
    • Material: Plastic
    • OE Part Number: 15-80712, 15976889
    • Package Contents: Fan Blade
    • UPC: 019495036647
    • Part Description: 2003 Chevrolet Express 1500 Engine Cooling Fan Blade
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | All Engines
    $31.22
  • Four Seasons Auxiliary Engine Cooling Fan for 2003 Chevrolet Express 1500 - 37141

    Four Seasons® Auxiliary Engine Cooling Fan for 2003 Chevrolet Express 1500

    PartNumber: 37141
    Product Specifications
    • Notes: Universal Fit Super Duty Electric Pusher Auxiliary Fan. Add on fans used to supplement the primary Eng cooling fan. Incls mounting hardware. Controls not Incld.;Universal Fit Super Duty Electric Pusher Primary & Auxiliary Fan. Add on fans used to supplement the primary Eng cooling fan. Incls mounting hardware. Controls not Incld.
    • Material: Plastic
    • Performance Rated: Yes
    • SDS Required: No (135233618)
    • UPC: 096361089952
    • Part Description: 2003 Chevrolet Express 1500 Auxiliary Engine Cooling Fan
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $102.23
  • Spectra Premium Complete Radiator for 2003 Chevrolet Express 1500 - CU2712

    Spectra Premium® Complete Radiator for 2003 Chevrolet Express 1500

    PartNumber: CU2712
    Product Specifications
    • Notes: w/Clamp-On Hose; Radiator Cap Is Reqd
    • Core Material: Aluminum
    • Height: 30 1/2"
    • Inlet: 1 5/16"
    • Inlet Header: 18 5/8" x 2 3/8"
    • Outlet: 1 9/16"
    • Outlet Header: 18 5/8" x 2 3/8"
    • Row: 1
    • Tank Material: Plastic
    • Thickness: 1"
    • TOC: Plated; 11 1/2"
    • UPC: 671607749427
    • Width: 17 1/4"
    • Part Description: 2003 Chevrolet Express 1500 Complete Radiator
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $109.84
  • Dayco Engine Coolant Water Pump for 2003 Chevrolet Express 1500 - DP958

    Dayco® Engine Coolant Water Pump for 2003 Chevrolet Express 1500

    PartNumber: DP958
    Product Specifications
    • Notes: Serpentine Belt Driven; Thermostat Bore Dia 52mm
    • UPC: 036687989871
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Water Pump
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $78.54
  • STANT 48 mm Cooling System Adapter for 2003 Chevrolet Express 1500 - 12032

    STANT® 48 mm Cooling System Adapter for 2003 Chevrolet Express 1500

    PartNumber: 12032
    Product Specifications
    • Quantity: 1 Piece
    • Size: 48 mm
    • UPC: 033342495104
    • Part Description: 2003 Chevrolet Express 1500 48 mm Cooling System Adapter
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $86.79
  • Victor Reinz Dual Round Port Oil Cooler Gasket for 2003 Chevrolet Express 1500 - 71-13510-00

    Victor Reinz® Dual Round Port Oil Cooler Gasket for 2003 Chevrolet Express 1500

    PartNumber: 71-13510-00
    Product Specifications
    • Notes: with Dual Round Ports
    • Color: Color May Vary
    • Complete: Y
    • Configuration: One Piece
    • Contains Applications: Y
    • Length: 2.6300
    • Material: Molded Rubber And Metal
    • Meets or Exceeds OEM Specs: Y
    • Release Wave: 12/15/2017
    • Rim Shape: Oval
    • UPC: 023913670535
    • Width: 1.0400
    • Part Description: 2003 Chevrolet Express 1500 Dual Round Port Oil Cooler Gasket
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $7.88
  • OEM 2003 Chevrolet Express 1500 Fan Pulley Diagram - 12550053
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Express 1500 Fan Pulley

    PartNumber: 12550053
    OEM 2003 Chevrolet Express 1500 Fan Pulley - 12550053
    Product Specifications
    • Notes: 2003-14
    • Other Names: Fan Pulley, Pulley
    • Item Dimensions: 8.0 x 7.7 x 3.7 inches
    • Item Weight: 4.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 Chevrolet Express 1500 Fan Pulley
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
    $11.61 MSRP: $21.00
    You Save: $9.39 (45%)
  • Four Seasons Electric Fan Kit for 2003 Chevrolet Express 1500 - 36897

    Four Seasons® Electric Fan Kit for 2003 Chevrolet Express 1500

    PartNumber: 36897
    Product Specifications
    • Notes: Universal Fit Primary cooling fan. Reversible for push or pull operation. Includes mounting hardware. Controls not included.;Universal Fit Auxiliary Electric Fan. Add on fans used to supplement the primary Eng cooling fan.
    • Blade Color A : Black
    • Blade Material: Plastic; Reinforced Nylon
    • Blade Quantity: 8
    • Blade Type: curved 'S' blade
    • CFM Free Air High: 1250
    • CFM Free Air Low: 1250
    • CFM Rad Mnt High: 1050
    • CFM Rad Mnt Low: 1050
    • Color: Black
    • Depth IN: 3.71"
    • Dia. IN: 14.000
    • Dia. MM: 355.600
    • Fan 1 Diameter: 14.000
    • Fan Clutch Mounted: no
    • Fan Quantity: 1
    • Fan Type: Universal Electric fan
    • Material: Reinforced Nylon
    • Mounting Hardware: Included
    • O.E. Replacement: No
    • Performance Rated: Yes
    • Rotation: Reversible
    • SDS Required: No (135233618)
    • Shroud Color: Black
    • Shroud Included: finger guard on fan
    • Shroud Material: Plastic; reinforced nylon
    • Style: Reversible Fan
    • Universal Or Specific Fit: Universal Electric fan
    • UPC: 096361368972
    • Voltage: 12
    • Volume (CFM): 1085
    • Wiring Harness Length: 36.000
    • Part Description: 2003 Chevrolet Express 1500 Electric Fan Kit
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $74.86
  • Gates Engine Coolant Thermostat With Housing And Seal for 2003 Chevrolet Express 1500 - 34702

    Gates® Engine Coolant Thermostat With Housing And Seal for 2003 Chevrolet Express 1500

    PartNumber: 34702
    Product Specifications
    • Notes: W/GM Updated Replacement Water Pump; Incls Housing; 187 Degree; OE Temperature; Seal Incld
    • Check Valve: No
    • Electric: No
    • Jiggle Pin: Yes
    • Number of Bolt Holes: 2
    • Number of Seals: 1
    • OE Exact: No
    • Outlet Inside Diameter 1: 1.175"
    • Outlet Outside Diameter 1: 1.554"
    • Temperature (F): 187
    • Type: Integrated Housing Thermostat
    • UPC: 770075631569
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Thermostat With Housing And Seal
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $51.81
  • Dorman Engine Coolant Thermostat Housing for 2003 Chevrolet Express 1500 - 902-2701

    Dorman® Engine Coolant Thermostat Housing for 2003 Chevrolet Express 1500

    PartNumber: 902-2701
    Product Specifications
    • Notes: Incls Thermostat; w/Water Pump Casting# 12562459; 160 Degrees Fahrenheit
    • Bleeder Hole: No
    • Bolt Hole Center To Bolt Hole Center: 3"; 0.87"
    • Bolt Hole Quantity: 3
    • Color/Finish: Natural
    • Flange Length: 4.39"
    • Flange Thickness: 0.4"
    • Flange Width: 2.701"
    • Gasket Type: Gasket
    • Grade Type: Regular
    • Inside Diameter: 1.236"
    • Material: Metal
    • Mounting Hardware Included: No
    • OE Part Number: 12571261, 8125712610
    • Outlet Port Quantity: 1
    • Thermostat Included: No
    • Thermostat Opening Temperature (F): 160 Degrees
    • UPC: 889245054906
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Thermostat Housing
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 8 Cyl 5.3L
    $22.81
  • Dayco Engine Coolant Water Pump for 2003 Chevrolet Express 1500 - DP957

    Dayco® Engine Coolant Water Pump for 2003 Chevrolet Express 1500

    PartNumber: DP957
    Product Specifications
    • Notes: Serpentine Belt Driven; Std Duty
    • UPC: 036687989857
    • Part Description: 2003 Chevrolet Express 1500 Engine Coolant Water Pump
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Express 1500 | All Trims | 6 Cyl 4.3L
    $41.05
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