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Replacement and OEM Parts for 2003 GMC Sierra 2500 Thermostat and Housing Assembly

2003 GMC Sierra 2500 Thermostat and Housing Assembly

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2003 GMC Sierra 2500
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  • OEM 2003 GMC Sierra 2500 Inlet Assembly Diagram - 12600172
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Inlet Assembly

    PartNumber: 12600172
    OEM 2003 GMC Sierra 2500 Inlet Assembly - 12600172
    Product Specifications
    • Notes: 4.8, 5.3 & 6.0 Liter
    • Item Dimensions: 6.4 x 4.2 x 4.2 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12581594
    • Part Description: 2003 GMC Sierra 2500 Inlet Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    $43.57 MSRP: $82.23
    You Save: $38.66 (48%)
  • Gates Engine Coolant Thermostat With Housing And Seal for 2003 GMC Sierra 2500 - 34702

    Gates® Engine Coolant Thermostat With Housing And Seal for 2003 GMC Sierra 2500

    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 GMC Sierra 2500 Engine Coolant Thermostat With Housing And Seal
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
    $51.81
  • Four Seasons Engine Coolant Water Outlet for 2003 GMC Sierra 2500 - 86220

    Four Seasons® Engine Coolant Water Outlet for 2003 GMC Sierra 2500

    PartNumber: 86220
    Product Specifications
    • Bleeder Screw Included: Not Included
    • Gasket or Seal Included: Included
    • Inlet Dia. IN: 1.551
    • Material: Aluminum
    • Maximum Height: 2.50
    • Meets / Exceeds OEM: Yes
    • Mnt Flange Width IN: 0.320
    • Outlet Quantity: 1.000
    • Style: w/ Thermostat
    • Thermostat Included: Included
    • UPC: 096361093072
    • Part Description: 2003 GMC Sierra 2500 Engine Coolant Water Outlet
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | All Engines
    $29.87
  • OEM 2003 GMC Sierra 2500 Thermostat Unit Diagram - 12571261
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Thermostat Unit

    PartNumber: 12571261
    OEM 2003 GMC Sierra 2500 Thermostat Unit - 12571261
    Product Specifications
    • Notes: All Models; 4.8l, 5.3l, 6.0l; Includes Thermostat
    • 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 GMC Sierra 2500 Thermostat Unit
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    $41.61 MSRP: $78.51
    You Save: $36.90 (48%)
  • Gates Engine Coolant Thermostat With Housing And Seal for 2003 GMC Sierra 2500 - 33910

    Gates® Engine Coolant Thermostat With Housing And Seal for 2003 GMC Sierra 2500

    PartNumber: 33910
    Product Specifications
    • Notes: w/o E or Most Aftermarket Water Pumps; 186 Degree; OE Temperature; Seal Incld;W/OE or Most Aftermarket Water Pumps; 186 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: 1.31"
    • Outlet Outside Diameter 1: 1.65"
    • Temperature (F): 187
    • Type: Integrated Housing Thermostat
    • UPC: 072053675979
    • Part Description: 2003 GMC Sierra 2500 Engine Coolant Thermostat With Housing And Seal
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
    $20.38
  • Four Seasons Engine Coolant Thermostat And Housing Assembly for 2003 GMC Sierra 2500 - 85580

    Four Seasons® Engine Coolant Thermostat And Housing Assembly for 2003 GMC Sierra 2500

    PartNumber: 85580
    Product Specifications
    • Notes: w/Thermostat; w/Thermostat
    • Flange Thickness: 0.403
    • Gasket or Seal Included: Included
    • Inlet Port Diameter: 1.222
    • Material: Aluminum
    • Meets / Exceeds OEM: Yes
    • Overall Height IN: 2.400
    • Style: w/ Thermostat
    • Thermostat Included: Included
    • UPC: 096361855809
    • Part Description: 2003 GMC Sierra 2500 Engine Coolant Thermostat And Housing Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | All Engines
    $22.96
  • STANT Engine Coolant Thermostat and Housing Assembly for 2003 GMC Sierra 2500 - 14298

    STANT® Engine Coolant Thermostat and Housing Assembly for 2003 GMC Sierra 2500

    PartNumber: 14298
    Product Specifications
    • Notes: Seal Included Seal Included; W/OE or Most Aftermarket Water Pumps; OE Temperature; This part is also available in the Engine Coolant Thermostat Kit 102KT, which contains 10248 (Radiator Cap) and 74050 (Engine Coolant Temperature Sensor)
    • Bypass Plate Diameter: 1.45"
    • Flange Diameter (Without Seal): 2.55"
    • Height from Flange to Bottom: 1.88"
    • OE Part Number: 12571261, 12562740, 12561156, 12558853, 12572740, 12555717, 12558838, 12561157
    • Temperature (F): 186 Degrees
    • UPC: 033342497115
    • Part Description: 2003 GMC Sierra 2500 Engine Coolant Thermostat and Housing Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
  • STANT Engine Coolant Thermostat and Housing Assembly for 2003 GMC Sierra 2500 - 14296

    STANT® Engine Coolant Thermostat and Housing Assembly for 2003 GMC Sierra 2500

    PartNumber: 14296
    Product Specifications
    • Notes: Seal Included Seal Included; W/OE or Most Aftermarket Water Pumps; Alternate Temperature
    • Temperature (F): 160 Degrees
    • UPC: 333420699302
    • Part Description: 2003 GMC Sierra 2500 Engine Coolant Thermostat and Housing Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
  • STANT Engine Coolant Thermostat and Housing Assembly for 2003 GMC Sierra 2500 - 15828

    STANT® Engine Coolant Thermostat and Housing Assembly for 2003 GMC Sierra 2500

    PartNumber: 15828
    Product Specifications
    • Freight Class: 70
    • Temperature (F): 186 Degrees
    • UPC: 333421749860
    • Part Description: 2003 GMC Sierra 2500 Engine Coolant Thermostat and Housing Assembly
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L