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Replacement and OEM Parts for 2003 Chevrolet Trailblazer EXT Thermostat Housing

2003 Chevrolet Trailblazer EXT Thermostat Housing

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2003 Chevrolet Trailblazer EXT
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  • OEM 2003 Chevrolet Trailblazer EXT Thermostat Unit Diagram - 12571261
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Trailblazer EXT Thermostat Unit

    PartNumber: 12571261
    OEM 2003 Chevrolet Trailblazer EXT Thermostat Unit - 12571261
    Product Specifications
    • Notes: 5.3 Liter; S-Series
    • 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 Trailblazer EXT Thermostat Unit
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS, LT, North Face | 8 Cyl 5.3 L GAS
    $40.51 MSRP: $76.45
    You Save: $35.94 (48%)
  • Dorman Engine Coolant Thermostat Housing Assembly for 2003 Chevrolet Trailblazer EXT - 902-2836

    Dorman® Engine Coolant Thermostat Housing Assembly for 2003 Chevrolet Trailblazer EXT

    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 Trailblazer EXT Engine Coolant Thermostat Housing Assembly
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $39.33
  • Gates Engine Coolant Water Outlet for 2003 Chevrolet Trailblazer EXT - CO34923

    Gates® Engine Coolant Water Outlet for 2003 Chevrolet Trailblazer EXT

    PartNumber: CO34923
    Product Specifications
    • Notes: Thermostat Cover; W/GM Updated Replacement Water Pump
    • By-Pass Holes: No
    • Material: Cast Aluminum
    • Number of Bolt Holes: 2
    • Number of Gaskets: 0
    • Number of Seals: 0
    • OE Exact: Yes
    • Outlet Inside Diameter 1: 1.194"
    • Outlet Outside Diameter 1: 1.565"
    • Type: Coolant Outlet
    • UPC: 770075795179
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Water Outlet
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $24.81
  • Four Seasons Engine Coolant Thermostat Housing W O Thermostat for 2003 Chevrolet Trailblazer EXT - 85254

    Four Seasons® Engine Coolant Thermostat Housing W O Thermostat for 2003 Chevrolet Trailblazer EXT

    PartNumber: 85254
    Product Specifications
    • Notes: w/o Thermostat
    • Bolt Hole Center To Bolt Hole Center: 3.000
    • Flange Thickness: 0.395
    • Gasket or Seal Included: Included
    • Inlet Port Diameter: 1.307
    • Material: Aluminum
    • Meets / Exceeds OEM: Yes
    • Overall Height IN: 2.51
    • Style: w/o Thermostat
    • Symetrical Base: Yes
    • Thermostat Included: Not Included
    • UPC: 096361852549
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Thermostat Housing W O Thermostat
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $24.40
  • OEM 2003 Chevrolet Trailblazer EXT Thermostat Housing Diagram - 12620112
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Trailblazer EXT Thermostat Housing

    PartNumber: 12620112
    OEM 2003 Chevrolet Trailblazer EXT Thermostat Housing - 12620112
    Product Specifications
    • Notes: 4.2 Liter; S-Series; Includes Thermostat.
    • Other Names: Thermostat Housing
    • Item Dimensions: 11.3 x 4.8 x 4.8 inches
    • Item Weight: 3.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12602913, 12572988, 12567750
    • Part Description: 2003 Chevrolet Trailblazer EXT Thermostat Housing
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS, LT, North Face | 6 Cyl 4.2 L GAS
    $49.67 MSRP: $89.90
    You Save: $40.23 (45%)
  • Dorman Engine Coolant Thermostat Housing Assembly for 2003 Chevrolet Trailblazer EXT - 902-2131

    Dorman® Engine Coolant Thermostat Housing Assembly for 2003 Chevrolet Trailblazer EXT

    PartNumber: 902-2131
    Product Specifications
    • Notes: Cover; Incls Thermostat; 180 Degrees Fahrenheit
    • Bleeder Hole: No
    • Bolt Hole Center To Bolt Hole Center: 3.15"
    • Bolt Hole Quantity: 2
    • Color: Natural
    • Flange Length: 3.82"
    • Flange Thickness: 0.355"
    • Flange Width: 2.8"
    • Gasket or Seal Included: Yes
    • Gasket Type: O Ring
    • Grade Type: Regular
    • Inside Diameter: 1.1"
    • 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: 889245547699
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Thermostat Housing Assembly
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $23.97
  • Four Seasons Engine Coolant Water Outlet W O Thermostat for 2003 Chevrolet Trailblazer EXT - 85096

    Four Seasons® Engine Coolant Water Outlet W O Thermostat for 2003 Chevrolet Trailblazer EXT

    PartNumber: 85096
    Product Specifications
    • Notes: Outlet
    • Bolt Hole Center To Bolt Hole Center: 2.906
    • Gasket or Seal Included: Not Included
    • Material: Aluminum; Aluminum / Steel
    • Meets / Exceeds OEM: Yes
    • Style: w/o Thermostat
    • Symetrical Base: No
    • Thermostat Included: Not Included
    • UPC: 096361850965
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Water Outlet W O Thermostat
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $13.62
  • Dorman Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT - 902-800

    Dorman® Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT

    PartNumber: 902-800
    Product Specifications
    • Notes: Cover; Incls Thermostat; 190 Degrees Fahrenheit
    • Bleeder Hole: No
    • Bolt Hole Center To Bolt Hole Center: 3.13"
    • Bolt Hole Quantity: 2
    • Color/Finish: Natural
    • Flange Length: 2.73"
    • Flange Thickness: 0.365"
    • Flange Width: 3"
    • Gasket Type: Gasket
    • Grade Type: Regular
    • Inside Diameter: 1.21"
    • Material: Aluminum
    • Mounting Hardware Included: No
    • OE Part Number: 12620112
    • Outlet Port Quantity: 1
    • Thermostat Opening Temperature (F): 190 Degrees
    • UPC: 037495221412
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Thermostat Housing
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $24.97
  • Dorman Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT - 902-2700

    Dorman® Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT

    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: 2003 Chevrolet Trailblazer EXT Engine Coolant Thermostat Housing
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $23.46
  • Dorman Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT - 902-2701

    Dorman® Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT

    PartNumber: 902-2701
    Product Specifications
    • Notes: Incls Thermostat; w/Water Pump Casting# 12562459; w/Thermostat Retainer Brackets; 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 Trailblazer EXT Engine Coolant Thermostat Housing
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $22.83
  • Dorman Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT - 902-836

    Dorman® Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT

    PartNumber: 902-836
    Product Specifications
    • Notes: Cover; Does Not Incl Thermostat; wo/Water Pump Casting# 12562459; Use If Original Water Pump Replaced w/Later Design
    • Air Vent (Bleeder Valve): No
    • Bolt Hole Diameter: 0.313"
    • Bolt Hole Quantity: 2
    • Bolts Included: No
    • Color/Finish: Natural
    • Gasket or Seal Included: No
    • Housing Neck Angle (°): 30 Degree
    • Material: Metal
    • O Rings Included: Not Required
    • OE Part Number: 12600172, 12581594, 12568911
    • Outlet Diameter: 1.64"
    • Thermostat Included: No
    • UPC: 037495607070
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Thermostat Housing
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $18.24
  • Dorman Engine Coolant Water Outlet for 2003 Chevrolet Trailblazer EXT - 902-116

    Dorman® Engine Coolant Water Outlet for 2003 Chevrolet Trailblazer EXT

    PartNumber: 902-116
    Product Specifications
    • Air Vent (Bleeder Valve): No
    • Bolt Hole Diameter: 0.313"
    • Bolt Hole Quantity: 2
    • Bolts Included: No
    • Color/Finish: Natural
    • Gasket or Seal Included: No
    • Housing Neck Angle (°): 180 Degree
    • Material: Metal
    • O Rings Included: Not Required
    • OE Part Number: 24576963
    • Outlet Diameter: 1.25"
    • UPC: 019495357421
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Water Outlet
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $14.82
  • Dorman Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT - 902-700

    Dorman® Engine Coolant Thermostat Housing for 2003 Chevrolet Trailblazer EXT

    PartNumber: 902-700
    Product Specifications
    • Notes: w/Water Pump Casting# 12562459; w/Thermostat Retainer Brackets; Incls 186 Fahrenheit Degree Thermostat
    • Bleeder Hole: No
    • Bolt Hole Center To Bolt Hole Center: 2.726"; 3.547"
    • Bolt Hole Quantity: 2
    • Color/Finish: Natural
    • Flange Length: 4.39"
    • Flange Thickness: 0.399"
    • Flange Width: 2.701"
    • Gasket Type: Gasket
    • Grade Type: Regular
    • Inside Diameter: 1.236"
    • Material: Metal
    • Mounting Hardware Included: No
    • OE Part Number: 12571261
    • Outlet Port Quantity: 1
    • Thermostat Opening Temperature (F): 186 Degrees
    • UPC: 037495708449
    • Part Description: 2003 Chevrolet Trailblazer EXT Engine Coolant Thermostat Housing
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $13.59
  • OEM 2003 Chevrolet Trailblazer EXT Water Outlet Diagram - 24576963
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Trailblazer EXT Water Outlet

    PartNumber: 24576963
    OEM 2003 Chevrolet Trailblazer EXT Water Outlet - 24576963
    Product Specifications
    • Notes: 4.2 Liter
    • Other Names: Water Outlet
    • Item Dimensions: 11.5 x 5.3 x 5.1 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 Chevrolet Trailblazer EXT Water Outlet
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS, LT, North Face | 6 Cyl 4.2 L GAS
    $25.26 MSRP: $37.61
    You Save: $12.35 (33%)