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Replacement and OEM Parts for 2018 GMC Sierra 2500 HD Cooling Systems, Fans, Radiators & Components

2018 GMC Sierra 2500 HD Cooling Systems, Fans, Radiators & Components

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112 products about 2018 GMC Sierra 2500 HD Cooling Systems, Fans, Radiators & Components found

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  • OEM 2018 GMC Sierra 2500 HD Water Pump Diagram - 12681417
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Water Pump

    PartNumber: 12681417
    OEM 2018 GMC Sierra 2500 HD Water Pump - 12681417
    Product Specifications
    • Notes: Silverado, Sierra; 6.0l; 6.0 Liter
    • Other Names: Water Pump
    • Item Dimensions: 22.1 x 16.4 x 9.5 inches
    • Item Weight: 13.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 19208815
    • Replaced by: 19434033
    • Part Description: 2018 GMC Sierra 2500 HD Water Pump
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $246.98 MSRP: $523.66
    You Save: $276.68 (53%)
  • OEM 2018 GMC Sierra 2500 HD Sensor Diagram - 12608814
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Sensor

    PartNumber: 12608814
    OEM 2018 GMC Sierra 2500 HD Sensor - 12608814
    Product Specifications
    • Notes: Silverado, Sierra; 6.0l
    • 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: 2018 GMC Sierra 2500 HD Sensor
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $30.68 MSRP: $57.90
    You Save: $27.22 (48%)
  • OEM 2018 GMC Sierra 2500 HD Thermostat Diagram - 97241130
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Thermostat

    PartNumber: 97241130
    OEM 2018 GMC Sierra 2500 HD Thermostat - 97241130
    Product Specifications
    • Notes: 6.6 Liter Diesel, 180 Deg
    • 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: 2018 GMC Sierra 2500 HD Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $31.67 MSRP: $59.78
    You Save: $28.11 (48%)
  • OEM 2018 GMC Sierra 2500 HD Thermostat Diagram - 97241130
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Thermostat

    PartNumber: 97241130
    OEM 2018 GMC Sierra 2500 HD Thermostat - 97241130
    Product Specifications
    • Notes: 6.6 Liter Diesel, 180 Deg
    • 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: 2018 GMC Sierra 2500 HD Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $31.67 MSRP: $59.78
    You Save: $28.11 (48%)
  • OEM 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket Diagram - 12630223
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket

    PartNumber: 12630223
    OEM 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket - 12630223
    Product Specifications
    • Notes: Silverado, Sierra; 6.0l; 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: 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $6.96 MSRP: $12.59
    You Save: $5.63 (45%)
  • OEM 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket Diagram - 12630223
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket

    PartNumber: 12630223
    OEM 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket - 12630223
    Product Specifications
    • Notes: Silverado, Sierra; 6.0l; 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: 2018 GMC Sierra 2500 HD Water Pump Assembly Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $6.96 MSRP: $12.59
    You Save: $5.63 (45%)
  • Dorman OE Solutions Oil Cooler Line Connector for 2018 GMC Sierra 2500 HD - 800-622

    Dorman® OE Solutions Oil Cooler Line Connector for 2018 GMC Sierra 2500 HD

    PartNumber: 800-622
    Product Specifications
    • Notes: 1/2"
    • Fitting Angle: Straight
    • Fitting Attachment End 1: Quick Disconnect
    • Fitting Attachment End 2: Male Thread
    • Fitting Finish: Natural/No Finish
    • Fitting Size End 1 (in): 1.2"
    • Fitting Size End 2 (in): 0.75"
    • Material: Steel
    • OE Part Number: 15190249, 22988269
    • Swivel: No
    • Thread Sealer Present: No
    • UPC: 019495223672
    • Part Description: 2018 GMC Sierra 2500 HD OE Solutions Oil Cooler Line Connector
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $18.05
  • TYC Engine Coolant Radiator for 2018 GMC Sierra 2500 HD - 13301

    TYC® Engine Coolant Radiator for 2018 GMC Sierra 2500 HD

    PartNumber: 13301
    Product Specifications
    • Bottom Header: 23 9/16" X 2 3/16"
    • Components Included: Transmission Oil Cooler, Engine Oil Cooler
    • Core Size: 34" X 23 1/8" X 7/8"
    • Inlet Size: 1 5/16"
    • Manufactured Material: Plastic/Aluminum
    • OE Part Number: 23447657
    • Outlet Size: 1 1/2"
    • Rows: 1
    • Top Header: 23 9/16" X 2 3/16"
    • UPC: 762405258317
    • Part Description: 2018 GMC Sierra 2500 HD Engine Coolant Radiator
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $203.54
  • OEM 2018 GMC Sierra 2500 HD Thermostat Diagram - 97241129
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Thermostat

    PartNumber: 97241129
    OEM 2018 GMC Sierra 2500 HD Thermostat - 97241129
    Product Specifications
    • Notes: 6.6 Liter Diesel, 185 Deg
    • 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: 2018 GMC Sierra 2500 HD Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $33.70 MSRP: $68.40
    You Save: $34.70 (51%)
  • OEM 2018 GMC Sierra 2500 HD Thermostat Diagram - 97241129
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Thermostat

    PartNumber: 97241129
    OEM 2018 GMC Sierra 2500 HD Thermostat - 97241129
    Product Specifications
    • Notes: 6.6 Liter Diesel, 185 Deg
    • 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: 2018 GMC Sierra 2500 HD Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $33.70 MSRP: $68.40
    You Save: $34.70 (51%)
  • Four Seasons Thermal Engine Cooling Fan Clutch for 2018 GMC Sierra 2500 HD - 46090

    Four Seasons® Thermal Engine Cooling Fan Clutch for 2018 GMC Sierra 2500 HD

    PartNumber: 46090
    Product Specifications
    • Notes: Reverse Rotation; Severe Duty Thermal Fan Clutch
    • Bolt Hole Quantity: 4
    • Bolt Quantity: 4
    • Bolt Thread: M10x1.500
    • Clutch Maximum Diameter: 6.45
    • Clutch Type: D - Severe Duty & Truck Fan Drive
    • Color: Raw Aluminum in Color
    • Distance From Clutch To Mounting Flange: 2.42
    • 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; 1.44 (36mm) HEX
    • Mount Dia. MM: 37
    • Mounting Hardware: Not Included
    • Mounting Hole Quantity: 4
    • Mounting Type: HEX
    • New or Reman: New
    • Overall Dia. MM: 163.8; 163.83
    • Overall Height IN: 4.44
    • Overall Height MM: 112.6
    • 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: 096361460904
    • Use Type: Severe Duty
    • Part Description: 2018 GMC Sierra 2500 HD Thermal Engine Cooling Fan Clutch
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $66.90
  • Delphi Coolant Temperature Sensor for 2018 GMC Sierra 2500 HD - TS10076

    Delphi® Coolant Temperature Sensor for 2018 GMC Sierra 2500 HD

    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: 2018 GMC Sierra 2500 HD Coolant Temperature Sensor
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $20.68
  • CSF Engine Coolant Radiator for 2018 GMC Sierra 2500 HD - 3843

    CSF® Engine Coolant Radiator for 2018 GMC Sierra 2500 HD

    PartNumber: 3843
    Product Specifications
    • Bottom Hose Fitting (in): 2 1/4 Right
    • Box Height (in): 6 5/8
    • Box Length (in): 47
    • Box Weight (lbs): 37
    • Box Width (in): 31 13/16
    • Core Length: 33 7/16
    • Core Material: Aluminum
    • Core Thickness: 2 3/16
    • Core Width: 27 7/16
    • Cross-flow/ Down-flow: Cross Flow
    • Hazardous Material: No
    • Inlet Length (in): 28 7/16
    • Inlet Width (in): 2 11/16
    • No. Of Rows: 2
    • OE Part Number: 84224661, GM3010615, 23208447
    • Oil Cooler (in): 11 1/2 Right (high-effeciency Plate Type)
    • Outlet Length(in): 28 7/16
    • Outlet Width: 2 11/16
    • Radiator Cap Supplied: No
    • Tank Material: Plastic
    • Tech Note: O.E.M. style Plastic tanks & Aluminum core with quick-connect outlet pipe & oil cooler fittings.
    • Top Hose Fitting (in): 2 Left
    • UPC: 710353038437
    • Part Description: 2018 GMC Sierra 2500 HD Engine Coolant Radiator
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
    $249.47
  • GMB Engine Coolant Water Pump for 2018 GMC Sierra 2500 HD - 130-9670

    GMB® Engine Coolant Water Pump for 2018 GMC Sierra 2500 HD

    PartNumber: 130-9670
    Product Specifications
    • Housing Material: Aluminum
    • Hub Height: 6.90 in
    • Hub Pilot Diameter: 5.84 in
    • Impeller Material: Metal
    • Impeller Rotation: Reverse
    • UPC: 886931348448
    • Water Pump Drive Type: Serpentine Belt
    • Part Description: 2018 GMC Sierra 2500 HD Engine Coolant Water Pump
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $117.77
  • Gates Premium Modular Coolant Hose for 2018 GMC Sierra 2500 HD - 23808

    Gates® Premium Modular Coolant Hose for 2018 GMC Sierra 2500 HD

    PartNumber: 23808
    Product Specifications
    • Branch Quantity: 1
    • Centerline Length: 4 mm
    • Contains Spring: No
    • End 1 Inside Diameter: 0.5"
    • End 2 Inside Diameter: 0.5"
    • End 3 Inside Diameter: 0.15"
    • Material: EPDM, Plastic
    • Modular Components: Branch
    • Modular Hose: Yes
    • Molded: Yes
    • Number of Quick Connect Fittings: 0
    • UPC: 770075535003
    • Part Description: 2018 GMC Sierra 2500 HD Premium Modular Coolant Hose
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $64.30
  • OEM 2018 GMC Sierra 2500 HD Thermostat Diagram - 89018168
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Thermostat

    PartNumber: 89018168
    OEM 2018 GMC Sierra 2500 HD Thermostat - 89018168
    Product Specifications
    • Notes: Silverado, Sierra; 6.0l; 6.0 Liter
    • 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: 2018 GMC Sierra 2500 HD Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L GAS
    $40.04 MSRP: $75.53
    You Save: $35.49 (47%)
  • OEM 2018 GMC Sierra 2500 HD Thermostat Diagram - 89018168
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Thermostat

    PartNumber: 89018168
    OEM 2018 GMC Sierra 2500 HD Thermostat - 89018168
    Product Specifications
    • Notes: Silverado, Sierra; 6.0l; 6.0 Liter
    • 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: 2018 GMC Sierra 2500 HD Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L GAS
    $40.04 MSRP: $75.53
    You Save: $35.49 (47%)
  • Four Seasons Coolant Temperature Sensor for 2018 GMC Sierra 2500 HD - 37858

    Four Seasons® Coolant Temperature Sensor for 2018 GMC Sierra 2500 HD

    PartNumber: 37858
    Product Specifications
    • Connector Gender: Female
    • Connector Shape: Oval
    • Fitting Thread Size: M16-1.50
    • Meets / Exceeds OEM: YES
    • Number of Terminals: 2
    • Style: Coolant Temp Sensor
    • UPC: 096361378582
    • Part Description: 2018 GMC Sierra 2500 HD Coolant Temperature Sensor
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | All Engines
    $14.36
  • CSF Engine Coolant Radiator for 2018 GMC Sierra 2500 HD - 3798

    CSF® Engine Coolant Radiator for 2018 GMC Sierra 2500 HD

    PartNumber: 3798
    Product Specifications
    • Notes: w/quick-connect outlet pipe & oil cooler fittings
    • Bottom Hose Fitting (in): 1 9/16 Right
    • Box Height (in): 5 7/8
    • Box Length (in): 46
    • Box Weight (lbs): 21
    • Box Width (in): 28 11/16
    • Core Length: 34
    • Core Material: Aluminum
    • Core Thickness: 7/8
    • Core Width: 22 3/4
    • Cross-flow/ Down-flow: Cross Flow
    • Hazardous Material: No
    • Inlet Length (in): 23 1/4
    • Inlet Width (in): 1 7/8
    • No. Of Rows: 1
    • OE Part Number: 13301, 23378650, 23447657, 25838891, 22903587, 8013301, 22900479, CU13301
    • Oil Cooler (in): 11 1/2 (high-efficiency Plate Type) ;11 1/2 (high-efficiency Plate Type)
    • Outlet Length(in): 23 1/4
    • Outlet Width: 1 7/8
    • Radiator Cap Supplied: No
    • Tank Material: Plastic
    • Tech Note: O.E.M. style Plastic tanks & Aluminum core;with quick-connect outlet pipe & quick-connect oil cooler fittings.
    • Top Hose Fitting (in): 1 1/4 Left
    • UPC: 710353037980
    • Part Description: 2018 GMC Sierra 2500 HD Engine Coolant Radiator
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $136.61
  • Gates Premium Modular Coolant Hose for 2018 GMC Sierra 2500 HD - 24477

    Gates® Premium Modular Coolant Hose for 2018 GMC Sierra 2500 HD

    PartNumber: 24477
    Product Specifications
    • Branch Quantity: 1
    • Centerline Length: 22.63"
    • Contains Spring: No
    • End 1 Inside Diameter: 1"
    • End 2 Inside Diameter: 0.75"
    • End 3 Inside Diameter: 0.75"
    • Material: EPDM, Plastic, Steel
    • Modular Components: Branch, Female Quick Connector
    • Modular Hose: Yes
    • Molded: Yes
    • Number of Quick Connect Fittings: 1
    • UPC: 770075707684
    • Part Description: 2018 GMC Sierra 2500 HD Premium Modular Coolant Hose
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $62.25
  • Dayco Engine Coolant Curved Radiator Hose for 2018 GMC Sierra 2500 HD - 72882

    Dayco® Engine Coolant Curved Radiator Hose for 2018 GMC Sierra 2500 HD

    PartNumber: 72882
    Product Specifications
    • Color: Black
    • Contains Heat Shield: N
    • Contains Protective Sleeve: N
    • End 1 Inside Diameter: 1 5/16
    • End 1 Outside Diameter: 1 11/16
    • End 2 Inside Diameter: 1 5/16
    • End 2 Outside Diameter: 1 11/16
    • Hose Type: Single I.D. Hose
    • Material: EPDM
    • SAE Specification: SAE J20R4 Class D-1, SAE J1684 Type EC
    • Trunk Height: 32 1/2
    • UPC: 036687925237
    • Part Description: 2018 GMC Sierra 2500 HD Engine Coolant Curved Radiator Hose
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $47.01
  • Gates Engine Coolant Molded Radiator Hose for 2018 GMC Sierra 2500 HD - 24476

    Gates® Engine Coolant Molded Radiator Hose for 2018 GMC Sierra 2500 HD

    PartNumber: 24476
    Product Specifications
    • Branch Quantity: 0
    • Contains Spring: No
    • End 1 Inside Diameter: 1.5 in
    • End 2 Inside Diameter: 1.5 in
    • Material: EPDM, Plastic, Steel
    • Modular Components: Female Quick Connector
    • Modular Hose: Yes
    • Molded: Yes
    • Number of Quick Connect Fittings: 1
    • OE Part Number: 193888
    • UPC: 770075691884
    • Part Description: 2018 GMC Sierra 2500 HD Engine Coolant Molded Radiator Hose
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $60.53
  • OEM 2018 GMC Sierra 2500 HD Cap Asm-Radiator Surge Tank Diagram - 13502353
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Cap Asm-Radiator Surge Tank

    PartNumber: 13502353
    OEM 2018 GMC Sierra 2500 HD Cap Asm-Radiator Surge Tank - 13502353
    Product Specifications
    • Notes: Silverado, Sierra; 6.6l; 6.6 Liter Diesel, 2017-19, Side
    • Other Names: Cap, Reservoir Cap
    • Item Dimensions: 3.1 x 3.0 x 1.7 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 13545896
    • Part Description: 2018 GMC Sierra 2500 HD Cap Asm-Radiator Surge Tank
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $8.96 MSRP: $19.12
    You Save: $10.16 (54%)
  • Gates Premium Engine Coolant Thermostat for 2018 GMC Sierra 2500 HD - 34198S

    Gates® Premium Engine Coolant Thermostat for 2018 GMC Sierra 2500 HD

    PartNumber: 34198S
    Product Specifications
    • Notes: 187 Degree; OE Temperature; Seal included
    • 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: 2018 GMC Sierra 2500 HD Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $16.74
  • Gates Engine Coolant Molded Radiator Hose for 2018 GMC Sierra 2500 HD - 23729

    Gates® Engine Coolant Molded Radiator Hose for 2018 GMC Sierra 2500 HD

    PartNumber: 23729
    Product Specifications
    • Branch Quantity: 0
    • Contains Spring: No
    • End 1 Inside Diameter: 1.31 in
    • End 2 Inside Diameter: 1.31 in
    • Material: EPDM
    • Modular Hose: No
    • Molded: Yes
    • Number of Quick Connect Fittings: 0
    • OE Part Number: 6406
    • UPC: 770075461135
    • Part Description: 2018 GMC Sierra 2500 HD Engine Coolant Molded Radiator Hose
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $54.65
  • OEM 2018 GMC Sierra 2500 HD Reservoir Diagram - 84368363
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Reservoir

    PartNumber: 84368363
    OEM 2018 GMC Sierra 2500 HD Reservoir - 84368363
    Product Specifications
    • Notes: Silverado, Sierra; W/O Diesel; 6.0 Liter
    • Other Names: Recovery Tank, Reservoir, Reservoir Tank
    • Item Dimensions: 16.6 x 13.7 x 13.5 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22870828, 22797286, 15833723
    • Part Description: 2018 GMC Sierra 2500 HD Reservoir
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $55.14 MSRP: $83.18
    You Save: $28.04 (34%)
  • Gates OE Type Engine Coolant Thermostat for 2018 GMC Sierra 2500 HD - 34198

    Gates® OE Type Engine Coolant Thermostat for 2018 GMC Sierra 2500 HD

    PartNumber: 34198
    Product Specifications
    • Notes: 190 Degree; OE Temperature; Seal included
    • By-Pass Flange Diameter: 1.5"
    • Depth from Flange: 2.13"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.2"
    • Height from Flange: 0.79"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: 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
    • Temperature (C): 88
    • Temperature (F): 190
    • Total Height: 2.92"
    • Type: OE Type Thermostat
    • UPC: 770075524076
    • Part Description: 2018 GMC Sierra 2500 HD OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
    $11.74
  • OEM 2018 GMC Sierra 2500 HD Reservoir Diagram - 84257137
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Reservoir

    PartNumber: 84257137
    OEM 2018 GMC Sierra 2500 HD Reservoir - 84257137
    Product Specifications
    • Notes: Silverado, Sierra; W/Diesel; 6.6 Liter Diesel, 2017-19
    • Other Names: Recovery Tank, Reservoir
    • Item Dimensions: 12.5 x 11.7 x 9.6 inches
    • Item Weight: 4.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 84174037, 84214124, 84138913
    • Part Description: 2018 GMC Sierra 2500 HD Reservoir
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $102.90 MSRP: $155.21
    You Save: $52.31 (34%)
  • OEM 2018 GMC Sierra 2500 HD Connector Diagram - 15226661
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Connector

    PartNumber: 15226661
    OEM 2018 GMC Sierra 2500 HD Connector - 15226661
    Product Specifications
    • Notes: 6.0 Liter
    • Item Dimensions: 2.0 x 1.9 x 1.4 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22691345, 15170198
    • Part Description: 2018 GMC Sierra 2500 HD Connector
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $6.09 MSRP: $8.78
    You Save: $2.69 (31%)
  • OEM 2018 GMC Sierra 2500 HD Water Inlet Seal Diagram - 12587397
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Water Inlet Seal

    PartNumber: 12587397
    OEM 2018 GMC Sierra 2500 HD Water Inlet Seal - 12587397
    Product Specifications
    • Notes: Silverado, Sierra; 6.0l; 6.0 Liter
    • Item Dimensions: 3.0 x 3.0 x 0.3 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Water Inlet Seal
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L GAS
    $5.49 MSRP: $10.34
    You Save: $4.85 (47%)
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