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Replacement and OEM Parts for 2003 Hummer H2 Cooling Systems, Fans, Radiators & Components

2003 Hummer H2 Cooling Systems, Fans, Radiators & Components

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Engine & Drivetrain

100 products about 2003 Hummer H2 Cooling Systems, Fans, Radiators & Components found

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  • OEM 2003 Hummer H2 Sensor Diagram - 12608814
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    OEM (Genuine) 2003 Hummer H2 Sensor

    PartNumber: 12608814
    OEM 2003 Hummer H2 Sensor - 12608814
    Product Specifications
    • Notes: Hummer H2
    • Item Dimensions: 2.8 x 1.7 x 0.8 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25037062, 12191170, 15326388, 15369305
    • Part Description: Sensor
    More Info
    $30.68 MSRP: $57.90
    You Save: $27.22 (48%)
  • OEM 2003 Hummer H2 Water Pump Assembly Gasket Diagram - 12630223
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    OEM (Genuine) 2003 Hummer H2 Water Pump Assembly Gasket

    PartNumber: 12630223
    OEM 2003 Hummer H2 Water Pump Assembly Gasket - 12630223
    Product Specifications
    • Notes: 6.0 Liter; 6.0 Liter;Hummer H2
    • 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: Water Pump Assembly Gasket
    More Info
    $6.96 MSRP: $12.59
    You Save: $5.63 (45%)
  • OEM 2003 Hummer H2 Water Pump Assembly Gasket Diagram - 12630223
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    OEM (Genuine) 2003 Hummer H2 Water Pump Assembly Gasket

    PartNumber: 12630223
    OEM 2003 Hummer H2 Water Pump Assembly Gasket - 12630223
    Product Specifications
    • Notes: 6.0 Liter; 6.0 Liter;Hummer H2
    • 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: Water Pump Assembly Gasket
    More Info
    $6.96 MSRP: $12.59
    You Save: $5.63 (45%)
  • Dorman OE Solutions Inlet Outlet Oil Cooler Line for 2003 Hummer H2 - 625-637

    Dorman® OE Solutions Inlet Outlet Oil Cooler Line for 2003 Hummer H2

    PartNumber: 625-637
    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): 28"
    • OE Part Number: 15114167
    • UPC: 019495295822
    • Part Description: OE Solutions Inlet Outlet Oil Cooler Line
    More Info
    $99.36
  • OEM 2003 Hummer H2 Recovery Tank Cap Diagram - 15075118
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    OEM (Genuine) 2003 Hummer H2 Recovery Tank Cap

    PartNumber: 15075118
    OEM 2003 Hummer H2 Recovery Tank Cap - 15075118
    Product Specifications
    • Notes: Hummer H2; 6.0 Liter
    • Item Dimensions: 2.5 x 2.5 x 1.5 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22671020, 22652695, 15066786
    • Part Description: Recovery Tank Cap
    More Info
    $13.10 MSRP: $24.70
    You Save: $11.60 (47%)
  • Denso Engine Coolant Radiator for 2003 Hummer H2 - 221-9010

    Denso® Engine Coolant Radiator for 2003 Hummer H2

    PartNumber: 221-9010
    Product Specifications
    • Core Height: 17.0470"
    • Core Thickness: 1.0620"
    • Core Width: 33.9300"
    • Inlet Diameter: 1.3380"
    • Outlet Diameter: 1.5550"
    • UPC: 042511219502
    • Part Description: Engine Coolant Radiator
    More Info
    $157.75
  • Gates Engine Coolant Standard Water Pump for 2003 Hummer H2 - 45006

    Gates® Engine Coolant Standard Water Pump for 2003 Hummer H2

    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: Engine Coolant Standard Water Pump
    More Info
    $110.08
  • Dorman Engine Coolant Recovery Tank for 2003 Hummer H2 - 603-102

    Dorman® Engine Coolant Recovery Tank for 2003 Hummer H2

    PartNumber: 603-102
    Product Specifications
    • Cap Maximum Pressure Rating: 15 PSI
    • Cap Type: Spring Loaded Twist
    • Color: Clear
    • Height: 186 mm
    • Length: 235 mm
    • Material: Plastic
    • Mount Hole Quantity: 1
    • OE Part Number: RC98, 15808715, 15808716, 15203949, 15778386
    • Pressurized: Yes
    • UPC: 019495095279
    • Part Description: Engine Coolant Recovery Tank
    More Info
    $56.34
  • OEM 2003 Hummer H2 Radiator Diagram - 22840116
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    OEM (Genuine) 2003 Hummer H2 Radiator

    PartNumber: 22840116
    OEM 2003 Hummer H2 Radiator - 22840116
    Product Specifications
    • Notes: Hummer H2; 6.0 Liter
    • Other Names: Radiator
    • Item Dimensions: 47.8 x 25.5 x 8.1 inches
    • Item Weight: 19.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 52473443, 15841570, 15192412, 25811504, 15193107, 22840118, 52487603, 52486594, 15252625
    • Part Description: Radiator
    More Info
    $298.91 MSRP: $423.64
    You Save: $124.73 (30%)
  • Delphi Coolant Temperature Sensor for 2003 Hummer H2 - TS10076

    Delphi® Coolant Temperature Sensor for 2003 Hummer H2

    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: Coolant Temperature Sensor
    More Info
    $20.68
  • Dorman Engine Coolant Thermostat Housing Assembly for 2003 Hummer H2 - 902-2836

    Dorman® Engine Coolant Thermostat Housing Assembly for 2003 Hummer H2

    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: Engine Coolant Thermostat Housing Assembly
    More Info
    $39.33
  • Gates Engine Coolant Standard Water Pump for 2003 Hummer H2 - 45005

    Gates® Engine Coolant Standard Water Pump for 2003 Hummer H2

    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: Engine Coolant Standard Water Pump
    More Info
    $87.70
  • Four Seasons Auxiliary Engine Cooling Fan for 2003 Hummer H2 - 37139

    Four Seasons® Auxiliary Engine Cooling Fan for 2003 Hummer H2

    PartNumber: 37139
    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.
    • Depth IN: 2.56"
    • Dia. IN: 12.000
    • Fan Quantity: 1
    • Material: Plastic
    • Mounting Hardware: Included
    • Performance Rated: Yes
    • SDS Required: No (135233618)
    • UPC: 096361089938
    • Part Description: Auxiliary Engine Cooling Fan
    More Info
    $96.70
  • Victor Reinz Engine Coolant Crossover Pipe Mounting Set for 2003 Hummer H2 - 18-10023-01

    Victor Reinz® Engine Coolant Crossover Pipe Mounting Set for 2003 Hummer H2

    PartNumber: 18-10023-01
    Product Specifications
    • Gasket Bolt Hole Quantity: 2
    • Gasket Color: Black/Red
    • Gasket Material: Molded Plastic
    • Material: FKM
    • O Ring Colors: Black
    • O Ring Inside Diameter (IN): 0.200 in
    • O Ring Material: Nitrile
    • O Ring Outside Diameter (IN): 0.350 in
    • O Ring Rim Shape: Round
    • O Ring Thickness (IN): 0.075 in
    • Thickness (in): 0.198 in
    • UPC: 023913704858
    • Part Description: Engine Coolant Crossover Pipe Mounting Set
    More Info
    $15.93
  • OEM 2003 Hummer H2 Bracket Bolt Diagram - 11516328
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    OEM (Genuine) 2003 Hummer H2 Bracket Bolt

    PartNumber: 11516328
    OEM 2003 Hummer H2 Bracket Bolt - 11516328
    Product Specifications
    • Notes: 2003-07
    • Item Dimensions: 2.8 x 2.5 x 2.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 10141996, 10192645, 11516548, 11507023, 12337993, 11514121, 11516348, 11508932
    • Part Description: Bracket Bolt
    More Info
    $3.21 MSRP: $5.08
    You Save: $1.87 (37%)
  • OEM 2003 Hummer H2 Bracket Bolt Diagram - 11516328
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    OEM (Genuine) 2003 Hummer H2 Bracket Bolt

    PartNumber: 11516328
    OEM 2003 Hummer H2 Bracket Bolt - 11516328
    Product Specifications
    • Notes: 2003-07
    • Item Dimensions: 2.8 x 2.5 x 2.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 10141996, 10192645, 11516548, 11507023, 12337993, 11514121, 11516348, 11508932
    • Part Description: Bracket Bolt
    More Info
    $3.21 MSRP: $5.08
    You Save: $1.87 (37%)
  • Gates Engine Coolant Thermostat With Housing And Seal for 2003 Hummer H2 - 34702

    Gates® Engine Coolant Thermostat With Housing And Seal for 2003 Hummer H2

    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: Engine Coolant Thermostat With Housing And Seal
    More Info
    $51.81
  • Dorman Engine Cooling Fan Blade for 2003 Hummer H2 - 620-602

    Dorman® Engine Cooling Fan Blade for 2003 Hummer H2

    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: Engine Cooling Fan Blade
    More Info
    $31.22
  • Dayco Engine Coolant Water Pump for 2003 Hummer H2 - DP958

    Dayco® Engine Coolant Water Pump for 2003 Hummer H2

    PartNumber: DP958
    Product Specifications
    • Notes: Serpentine Belt Driven; Thermostat Bore Dia 52mm
    • UPC: 036687989871
    • Part Description: Engine Coolant Water Pump
    More Info
    $78.54
  • STANT 48 mm Cooling System Adapter for 2003 Hummer H2 - 12032

    STANT® 48 mm Cooling System Adapter for 2003 Hummer H2

    PartNumber: 12032
    Product Specifications
    • Quantity: 1 Piece
    • Size: 48 mm
    • UPC: 033342495104
    • Part Description: 48 mm Cooling System Adapter
    More Info
    $86.79
  • CSF Radiator for 2003 Hummer H2 - 3728

    CSF® Radiator for 2003 Hummer H2

    PartNumber: 3728
    Product Specifications
    • Notes: OE Style Design
    • Bottom Hose Fitting (in): 1 9/16 Right
    • Box Height (in): 7 1/16
    • Box Length (in): 41 7/8
    • Box Weight (lbs): 19
    • Box Width (in): 23 9/16
    • Core Length: 34
    • Core Material: Aluminum
    • Core Thickness: 1 1/4
    • Core Width: 17 1/4
    • Cross-flow/ Down-flow: Cross Flow
    • Hazardous Material: No
    • Inlet Length (in): 18 1/16
    • Inlet Width (in): 2 3/4
    • No. Of Rows: 1
    • OE Part Number: 2370, 13029, 22840115, 22840116, CU2370
    • Oil Cooler (in): 11 1/2 (high-efficiency Plate Type) ;11 1/2 (high-efficiency Plate Type)
    • Outlet Length(in): 18 1/16
    • Outlet Width: 2 3/4
    • Radiator Cap Supplied: No
    • Tank Material: Plastic
    • Tech Note: O.E.M. style Plastic tanks & Aluminum core;with quick-connect oil cooler fittings.
    • Top Hose Fitting (in): 1 5/16 Left
    • UPC: 710353037287
    • Part Description: Radiator
    More Info
    $140.92
  • Four Seasons Auxiliary Engine Cooling Fan for 2003 Hummer H2 - 37138

    Four Seasons® Auxiliary Engine Cooling Fan for 2003 Hummer H2

    PartNumber: 37138
    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.
    • Material: Plastic
    • Performance Rated: Yes
    • SDS Required: No (135233618)
    • UPC: 096361089921
    • Part Description: Auxiliary Engine Cooling Fan
    More Info
    $85.04
  • Victor Reinz Dual Round Port Oil Cooler Gasket for 2003 Hummer H2 - 71-13510-00

    Victor Reinz® Dual Round Port Oil Cooler Gasket for 2003 Hummer H2

    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: Dual Round Port Oil Cooler Gasket
    More Info
    $7.88
  • Walker Products Engine Coolant Temperature Sensor for 2003 Hummer H2 - 211-91118

    Walker Products® Engine Coolant Temperature Sensor for 2003 Hummer H2

    PartNumber: 211-91118
    Product Specifications
    • Notes: Full Service Kit, Incls Sensor, Pigtail, Butt Connectors & Heat Shrink
    • UPC: 724620066436
    • Part Description: Engine Coolant Temperature Sensor
    More Info
    $16.32
  • GMB Engine Coolant Water Pump for 2003 Hummer H2 - 130-7340

    GMB® Engine Coolant Water Pump for 2003 Hummer H2

    PartNumber: 130-7340
    Product Specifications
    • Notes: 2.05" Dia Thermostat Opening; May Req New Thermostat
    • Housing Material: Aluminum
    • Hub Height: 6.57 in
    • Hub Pilot Diameter: 5.85 in
    • Impeller Material: Metal
    • Impeller Rotation: Reverse
    • Pulley Type: Serpentine Belt
    • UPC: 826732880860
    • Part Description: Engine Coolant Water Pump
    More Info
    $90.06
  • Dorman Engine Coolant Thermostat Housing for 2003 Hummer H2 - 902-2700

    Dorman® Engine Coolant Thermostat Housing for 2003 Hummer H2

    PartNumber: 902-2700
    Product Specifications
    • Notes: Incls Thermostat; w/Water Pump Casting# 12562459; w/Thermostat Retainer Brackets; 180 Degrees Fahrenheit
    • Bleeder Hole: No
    • Bolt Hole Center To Bolt Hole Center: 3"
    • Bolt Hole Quantity: 3
    • Color: Natural
    • Flange Length: 4.376"
    • Flange Thickness: 0.35"
    • Flange Width: 2.75"
    • Gasket or Seal Included: Yes
    • Gasket Type: O Ring
    • Grade Type: Regular
    • Inside Diameter: 1.3"
    • Material: Aluminum
    • Mounting Hardware Included: No
    • Outlet Port Quantity: 1
    • Package Contents: 1 Thermostat Housing; 1 Thermostat; 1 O-Ring
    • Thermostat Included: Yes
    • Thermostat Opening Temperature: 180 Deg. F
    • UPC: 889245055224
    • Part Description: Engine Coolant Thermostat Housing
    More Info
    $23.46
  • CSF Engine Coolant Radiator for 2003 Hummer H2 - 3831

    CSF® Engine Coolant Radiator for 2003 Hummer H2

    PartNumber: 3831
    Product Specifications
    • Notes: OE Style Design
    • UPC: 710353038314
    • Part Description: Engine Coolant Radiator
    More Info
    $143.66
  • Four Seasons Electric Fan Kit for 2003 Hummer H2 - 36896

    Four Seasons® Electric Fan Kit for 2003 Hummer H2

    PartNumber: 36896
    Product Specifications
    • Notes: 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: 800
    • CFM Free Air Low: 800
    • CFM Rad Mnt High: 675
    • CFM Rad Mnt Low: 675
    • Color: Black
    • Depth IN: 2.56"
    • Dia. IN: 12.000
    • Dia. MM: 304.800
    • Fan 1 Diameter: 12.000
    • 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: 096361368965
    • Voltage: 12
    • Volume (CFM): 800
    • Wiring Harness Length: 36.000
    • Part Description: Electric Fan Kit
    More Info
    $59.91
  • Walker Products Engine Coolant Temperature Sensor for 2003 Hummer H2 - 211-1118

    Walker Products® Engine Coolant Temperature Sensor for 2003 Hummer H2

    PartNumber: 211-1118
    Product Specifications
    • UPC: 724620062551
    • Part Description: Engine Coolant Temperature Sensor
    $9.56
  • Four Seasons Thermal Engine Cooling Fan Clutch for 2003 Hummer H2 - 36973

    Four Seasons® Thermal Engine Cooling Fan Clutch for 2003 Hummer H2

    PartNumber: 36973
    Product Specifications
    • Notes: Reverse Rotation; Severe Duty Thermal Fan Clutch
    • Bolt Hole Quantity: 4
    • Bolt Quantity: 4
    • Bolt Thread: M10 x 1.5 Hole
    • Clutch Maximum Diameter: 6.45
    • Clutch Type: D - Severe Duty & Truck Fan Drive
    • Color: Raw Aluminum in Color
    • Distance From Clutch To Mounting Flange: 1.745; 1.75
    • Electronic Clutch: Non Electronic
    • Fan Bolt Circle IN: 3.25
    • Fan Bolt Circle MM: 82.55; 82.6
    • Material: Aluminum
    • Meets / Exceeds OEM: Yes
    • Mount Dia. IN: 1.44 (36mm) HEX
    • Mount Dia. MM: 36 HEX
    • Mounting Hardware: Not Included
    • Mounting Hole Quantity: 4
    • Mounting Type: HEX
    • New or Reman: New
    • Overall Dia. MM: 163.8
    • Overall Height IN: 3.77
    • Overall Height MM: 95.8
    • Performance Rated: Yes
    • Pilot Depth IN: 0.7
    • Pilot Depth MM: 17.78; 17.8
    • Pilot Dia. IN: M30x1.500
    • Rotation: REV
    • SDS Required: No (135233618)
    • Style: Severe Duty
    • UPC: 096361369733
    • Use Type: Severe
    • Part Description: Thermal Engine Cooling Fan Clutch
    More Info
    $44.08
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