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Replacement and OEM Parts for GMC Sierra 2500 HD Thermostat
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GMC Sierra 2500 HD Thermostat

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  • OEM (Genuine) GMC Sierra 2500 HD Thermostat

    PartNumber: 97241129
    OEM GMC Sierra 2500 HD Thermostat - 97241129
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 3.2 x 3.2 x 3.2 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Sierra 2500 HD Thermostat
    More Info
    $33.70 MSRP: $68.40
    You Save: $34.70 (51%)
  • Gates Premium Engine Coolant Thermostat for GMC Sierra 2500 HD - 34198S

    Gates® Premium Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 34198S
    Product Specifications
    • By-Pass Flange Diameter: 1.5
    • Design: Bottom By-Pass
    • Height: 2.96
    • Height Between Flanges: 2.2
    • Height from Flange: .76
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: Yes
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 1
    • Seal Type: O-Ring
    • Sealing Flange Outside Diameter: 2.2
    • Start to Open Temperature: 187; 86
    • UPC: 770075745310
    • Part Description: GMC Sierra 2500 HD Premium Engine Coolant Thermostat
    More Info
    $15.53
  • Gates Premium Engine Coolant Thermostat for GMC Sierra 2500 HD - 33329S

    Gates® Premium Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 33329S
    Product Specifications
    • By-Pass Flange Diameter: .92
    • Design: Bottom By-Pass
    • Height: 2.2
    • Height Between Flanges: 1.39
    • Height from Flange: .89
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: No
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 0
    • Number of Seals: 1
    • Seal Type: O-Ring
    • Sealing Flange Outside Diameter: 1.72
    • Start to Open Temperature: 195; 90
    • UPC: 072053298642
    • Part Description: GMC Sierra 2500 HD Premium Engine Coolant Thermostat
    More Info
    $12.31
  • OEM (Genuine) GMC Sierra 2500 HD Thermostat

    PartNumber: 89018168
    OEM GMC Sierra 2500 HD Thermostat - 89018168
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 3.7 x 2.6 x 2.2 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 89017851
    • Part Description: GMC Sierra 2500 HD Thermostat
    More Info
    $38.99 MSRP: $73.55
    You Save: $34.56 (47%)
  • Gates OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 34198

    Gates® OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 34198
    Product Specifications
    • By-Pass Flange Diameter: 1.57
    • Design: Bottom By-Pass
    • Height: 2.83
    • Height Between Flanges: 2.1
    • Height from Flange: .73
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: Yes
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 1
    • OE Comparison Rating: OE Performance
    • Seal Type: O-Ring
    • Sealing Flange Outside Diameter: 2.2
    • Start to Open Temperature: 187; 86
    • UPC: 770075524076
    • Part Description: GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info
    $10.89
  • STANT OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 13899

    STANT® OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 13899
    Product Specifications
    • Bypass Plate Diameter (in): 0.92
    • Flange Diameter (With Seal) (in): 1.9
    • Flange Diameter (Without Seal) (in): 1.72
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.34
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 195 Degrees
    • UPC: 333420389982
    • Part Description: GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info
    $6.55
  • OEM (Genuine) GMC Sierra 2500 HD Inlet Assembly

    PartNumber: 12600172
    OEM GMC Sierra 2500 HD Inlet Assembly - 12600172
    Product Specifications
    • Item Dimensions: 6.4 x 4.2 x 4.2 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12581594
    • Part Description: GMC Sierra 2500 HD Inlet Assembly
    More Info
    $42.42 MSRP: $80.07
    You Save: $37.65 (48%)
  • OEM (Genuine) GMC Sierra 2500 HD Thermostat Unit

    PartNumber: 12600171
    OEM GMC Sierra 2500 HD Thermostat Unit - 12600171
    Product Specifications
    • Other Names: Thermostat, Thermostat Unit
    • Item Dimensions: 3.1 x 3.1 x 3.1 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12581595
    • Part Description: GMC Sierra 2500 HD Thermostat Unit
    More Info
    $20.87 MSRP: $39.42
    You Save: $18.55 (48%)
  • OEM (Genuine) GMC Sierra 2500 HD Thermostat Unit

    PartNumber: 12571261
    OEM GMC Sierra 2500 HD Thermostat Unit - 12571261
    Product Specifications
    • 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: GMC Sierra 2500 HD Thermostat Unit
    More Info
    $40.51 MSRP: $76.45
    You Save: $35.94 (48%)
  • OEM (Genuine) GMC Sierra 2500 HD Thermostat

    PartNumber: 12680457
    OEM GMC Sierra 2500 HD Thermostat - 12680457
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 3.1 x 2.1 x 2.0 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Sierra 2500 HD Thermostat
    More Info
    $39.69 MSRP: $74.92
    You Save: $35.23 (48%)
  • OEM (Genuine) GMC Sierra 2500 HD Thermostat

    PartNumber: 12559575
    OEM GMC Sierra 2500 HD Thermostat - 12559575
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 3.2 x 2.1 x 2.0 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12559573, 10210450, 12559269
    • Part Description: GMC Sierra 2500 HD Thermostat
    More Info
    $17.45 MSRP: $32.90
    You Save: $15.45 (47%)
  • OEM (Genuine) GMC Sierra 2500 HD Thermostat

    PartNumber: 12680456
    OEM GMC Sierra 2500 HD Thermostat - 12680456
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 3.1 x 2.0 x 2.1 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Sierra 2500 HD Thermostat
    More Info
    $20.30 MSRP: $38.32
    You Save: $18.02 (48%)
  • OEM (Genuine) GMC Sierra 2500 HD Sensor

    PartNumber: 39090811
    OEM GMC Sierra 2500 HD Sensor - 39090811
    Product Specifications
    • Other Names: Sensor, Temperature Sensor, Thermostatic Switch
    • Item Dimensions: 3.1 x 2.1 x 1.0 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Sierra 2500 HD Sensor
    More Info
    $6.38 MSRP: $12.02
    You Save: $5.64 (47%)
  • Gates Oe Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 33329

    Gates® Oe Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 33329
    Product Specifications
    • By-Pass Flange Diameter: .9
    • Design: Bottom By-Pass
    • Height: 2.07
    • Height Between Flanges: 1.38
    • Height from Flange: .69
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: No
    • Material: Steel, Brass, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 0
    • Number of Seals: 0
    • OE Comparison Rating: OE Performance
    • Sealing Flange Outside Diameter: 1.72
    • Start to Open Temperature: 195; 91
    • UPC: 072053024562
    • Part Description: GMC Sierra 2500 HD Oe Type Engine Coolant Thermostat
    More Info
    $7.56
  • Gates Oe Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 33946

    Gates® Oe Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 33946
    Product Specifications
    • By-Pass Flange Diameter: 1.19
    • Design: Bottom By-Pass
    • Height: 2.09
    • Height Between Flanges: 1.41
    • Height from Flange: .73
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 0
    • Number of Seals: 1
    • OE Comparison Rating: OE Performance
    • Seal Type: O-Ring
    • Sealing Flange Outside Diameter: 2.12
    • Start to Open Temperature: 185; 85
    • UPC: 072053877298
    • Part Description: GMC Sierra 2500 HD Oe Type Engine Coolant Thermostat
    More Info
    $27.61
  • Gates Heavy Duty Engine Coolant Thermostat for GMC Sierra 2500 HD - 33963

    Gates® Heavy Duty Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 33963
    Product Specifications
    • By-Pass Flange Diameter: 1.58
    • Design: Bottom By-Pass
    • Height: 2.7
    • Height Between Flanges: 1.8
    • Height from Flange: .9
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: Yes
    • Material: Steel, Brass, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 1
    • Seal Type: O-Ring
    • Sealing Flange Outside Diameter: 2.13
    • Start to Open Temperature: 187; 86
    • UPC: 770075225980
    • Part Description: GMC Sierra 2500 HD Heavy Duty Engine Coolant Thermostat
    More Info
    $9.15
  • STANT Heavy Duty Engine Coolant Thermostat for GMC Sierra 2500 HD - 14948

    STANT® Heavy Duty Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 14948
    Product Specifications
    • Bypass Plate Diameter (in): 1.5
    • Flange Diameter (With Seal) (in): 2.27
    • Flange Diameter (Without Seal) (in): 2.27
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.82
    • Height from Flange to Top of Bridge (in): 0.95
    • Temperature (F): 186 Degrees
    • UPC: 333420749960
    • Part Description: GMC Sierra 2500 HD Heavy Duty Engine Coolant Thermostat
    More Info
    $16.58
  • STANT OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 14738

    STANT® OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 14738
    Product Specifications
    • Bypass Plate Diameter (in): N/A
    • Flange Diameter (With Seal) (in): 2.2
    • Flange Diameter (Without Seal) (in): 2.2
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.15
    • Height from Flange to Top of Bridge (in): 0.6
    • Temperature (F): 180 Degrees
    • UPC: 333420429718
    • Part Description: GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info
  • OEM (Genuine) GMC Sierra 2500 HD Thermostat

    PartNumber: 97241130
    OEM GMC Sierra 2500 HD Thermostat - 97241130
    Product Specifications
    • Other Names: Thermostat
    • Item Dimensions: 3.2 x 3.1 x 3.1 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Sierra 2500 HD Thermostat
    More Info
  • STANT Premium Engine Coolant Thermostat for GMC Sierra 2500 HD - 45899

    STANT® Premium Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 45899
    Product Specifications
    • Bypass Plate Diameter (in): 0.92
    • Flange Diameter (With Seal) (in): 1.9
    • Flange Diameter (Without Seal) (in): 1.725
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.34
    • Height from Flange to Top of Bridge (in): 0.87
    • Temperature (F): 195 Degrees
    • UPC: 333420631432
    • Part Description: GMC Sierra 2500 HD Premium Engine Coolant Thermostat
    More Info
  • STANT OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 14728

    STANT® OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 14728
    Product Specifications
    • Bypass Plate Diameter (in): 1.17
    • Flange Diameter (With Seal) (in): 2.2
    • Flange Diameter (Without Seal) (in): 2.2
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.4
    • Height from Flange to Top of Bridge (in): 1.1
    • Temperature (F): 185 Degrees
    • UPC: 333420429336
    • Part Description: GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info
  • STANT Heavy Duty Engine Coolant Thermostat for GMC Sierra 2500 HD - 14946

    STANT® Heavy Duty Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 14946
    Product Specifications
    • Freight Class: 70
    • Temperature (F): 160 Degrees
    • UPC: 333421746272
    • Part Description: GMC Sierra 2500 HD Heavy Duty Engine Coolant Thermostat
    More Info
  • STANT OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 15150

    STANT® OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 15150
    Product Specifications
    • Freight Class: 70
    • Temperature (F): 180 Degrees
    • UPC: 333421750514
    • Part Description: GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info
  • STANT OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 15156

    STANT® OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 15156
    Product Specifications
    • Freight Class: 70
    • Temperature (F): 160 Degrees
    • UPC: 333421743998
    • Part Description: GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info
  • STANT OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD - 15158

    STANT® OE Type Engine Coolant Thermostat for GMC Sierra 2500 HD

    PartNumber: 15158
    Product Specifications
    • Bypass Plate Diameter (in): 1.44
    • Flange Diameter (With Seal) (in): 2.335
    • Flange Diameter (Without Seal) (in): 2.205
    • Freight Class: 70
    • Height from Flange to Bottom (in): 2.16
    • Height from Flange to Top of Bridge (in): 0.77
    • Temperature (F): 190 Degrees
    • UPC: 333421306230
    • Part Description: GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info