2003 GMC Sierra 2500 HD Cooling Systems, Fans, Radiators & Components

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230 products about 2003 GMC Sierra 2500 HD Cooling Systems, Fans, Radiators & Components found

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OEM (Genuine) 2003 GMC Sierra 2500 HD Fan Switch
PartNumber: 15326386
Product Specifications
Notes: All Models; 6.6l
Item Dimensions: 2.9 x 1.2 x 0.8 inches
Item Weight: 0.50 Pounds
Fitment Type: Direct Replacement
Replaces: 25036979, 12146312
Part Description: 2003 GMC Sierra 2500 HD Fan Switch
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$27.05 MSRP: ~~$51.06~~
You Save: $24.01 (48%)
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OEM (Genuine) 2003 GMC Sierra 2500 HD Sensor
PartNumber: 12608814
Product Specifications
Notes: All Models; 4.8l, 5.3l, 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: 2003 GMC Sierra 2500 HD Sensor
More Info
Vehicle Fitment
2003 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%)
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OEM (Genuine) 2003 GMC Sierra 2500 HD Water Pump Assembly Gasket
PartNumber: 12630223
Product Specifications
Notes: 4.8, 5.3 & 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: 2003 GMC Sierra 2500 HD Water Pump Assembly Gasket
More Info
Vehicle Fitment
2003 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%)
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Water Pump Assembly Gasket
PartNumber: 12630223
Product Specifications
Notes: 4.8, 5.3 & 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: 2003 GMC Sierra 2500 HD Water Pump Assembly Gasket
More Info
Vehicle Fitment
2003 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%)
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Thermostat
PartNumber: 97241130
Product Specifications
Notes: All Models; 6.6l; Rear; 6.6 Liter Turbo Diesel, Rear
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: 2003 GMC Sierra 2500 HD Thermostat
More Info
Vehicle Fitment
2003 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%)
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Thermostat
PartNumber: 97241130
Product Specifications
Notes: All Models; 6.6l; Rear; 6.6 Liter Turbo Diesel, Rear
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: 2003 GMC Sierra 2500 HD Thermostat
More Info
Vehicle Fitment
2003 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%)
Dorman® OE Solutions Diesel Oil Cooler for 2003 GMC Sierra 2500 HD
PartNumber: 918-400
Product Specifications
Color or Finish: Silver
Cooler Inlet Size: 0.72"
Cooler Outlet Size: 0.72"
Cooling Row Quantity: 11
Core Tube Width: 0.155"
Depth: 2.35"
Diameter (in): 0.72"
Finish: Brushed Metal
Height: 3.281"
Inlet Fitting Type: Female
Installation Hardware Included: Yes
Item Grade: Standard Replacement
Material: Aluminum
OE Part Number: 12649227, 19210615
Outlet Fitting Type: Female
Thickness (in): 3.096"
UPC: 019495387121
Width (in): 3.096"
Part Description: 2003 GMC Sierra 2500 HD OE Solutions Diesel Oil Cooler
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$252.04
Dorman® Cooling Fan Pulley Bracket for 2003 GMC Sierra 2500 HD
PartNumber: 300-825
Product Specifications
Material: Iron
Mounting Hardware Included: No
OE Part Number: 97226289
Package Contents: 1 Fan Pulley Bracket
UPC: 885484738751
Part Description: 2003 GMC Sierra 2500 HD Cooling Fan Pulley Bracket
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$181.72
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Thermostat
PartNumber: 97241129
Product Specifications
Notes: All Models; 6.6l; Front; 6.6 Liter Turbo Diesel, Front
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: 2003 GMC Sierra 2500 HD Thermostat
More Info
Vehicle Fitment
2003 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%)
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Thermostat
PartNumber: 97241129
Product Specifications
Notes: All Models; 6.6l; Front; 6.6 Liter Turbo Diesel, Front
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: 2003 GMC Sierra 2500 HD Thermostat
More Info
Vehicle Fitment
2003 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%)
Dorman® OE Solutions Inlet Outlet Oil Cooler Line for 2003 GMC Sierra 2500 HD
PartNumber: 625-168
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): 8"
OE Part Number: 15203890, 15765439
UPC: 019495063698
Part Description: 2003 GMC Sierra 2500 HD OE Solutions Inlet Outlet Oil Cooler Line
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$88.14
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Lower Hose
PartNumber: 22827735
Product Specifications
Notes: All Models; 4.8l, 5.3l, 6.0l; 4.8, 5.3 & 6.0 Liter
Other Names: Lower Hose
Item Dimensions: 5.8 x 4.4 x 14.9 inches
Item Weight: 1.40 Pounds
Fitment Type: Direct Replacement
Replaces: 15037656, 15792826, 15769077, 19130015
Part Description: 2003 GMC Sierra 2500 HD Lower Hose
More Info
Vehicle Fitment
2003 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
$33.96 MSRP: ~~$51.23~~
You Save: $17.27 (34%)
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Lower Hose
PartNumber: 22827735
Product Specifications
Notes: All Models; 4.8l, 5.3l, 6.0l; 4.8, 5.3 & 6.0 Liter
Other Names: Lower Hose
Item Dimensions: 5.8 x 4.4 x 14.9 inches
Item Weight: 1.40 Pounds
Fitment Type: Direct Replacement
Replaces: 15037656, 15792826, 15769077, 19130015
Part Description: 2003 GMC Sierra 2500 HD Lower Hose
More Info
Vehicle Fitment
2003 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
$33.96 MSRP: ~~$51.23~~
You Save: $17.27 (34%)
Denso® Engine Coolant Radiator for 2003 GMC Sierra 2500 HD
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: 2003 GMC Sierra 2500 HD Engine Coolant Radiator
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$157.76
Gates® Engine Coolant Molded Radiator Hose for 2003 GMC Sierra 2500 HD
PartNumber: 22927
Product Specifications
Branch Quantity: 2
Contains Spring: No
End 1 Inside Diameter: 1.78 in
End 2 Inside Diameter: 1.78 in
End 3 Inside Diameter: 1 in
End 4 Inside Diameter: 0.62 in
Material: EPDM, Plastic, Steel
Modular Components: Branch, Female Quick Connector
Modular Hose: Yes
Molded: Yes
Number of Quick Connect Fittings: 1
OE Part Number: 48124
UPC: 072053582086
Part Description: 2003 GMC Sierra 2500 HD Engine Coolant Molded Radiator Hose
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 8.1L
$150.19
Gates® Engine Coolant Standard Water Pump for 2003 GMC Sierra 2500 HD
PartNumber: 42349BH
Product Specifications
Notes: Incls Back Housing
Housing: Cast Aluminum
Impeller Material: Cast Iron
Number of Outlets: 2
Rotation of Impeller: Reverse
Timing Belt Driven: No
UPC: 770075420309
Part Description: 2003 GMC Sierra 2500 HD Engine Coolant Standard Water Pump
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$125.24
Dorman® Engine Cooling Fan Blade for 2003 GMC Sierra 2500 HD
PartNumber: 621-514
Product Specifications
Blades Count: 9
Color: Black
Diameter: 20.87"
Installation Hardware Included: No
Item Grade: Standard Replacement
Material: Plastic
OE Part Number: 15010202
Package Contents: Fan Blade
UPC: 037495598224
Part Description: 2003 GMC Sierra 2500 HD Engine Cooling Fan Blade
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$71.02
Dorman® Engine Coolant Recovery Tank for 2003 GMC Sierra 2500 HD
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: 2003 GMC Sierra 2500 HD Engine Coolant Recovery Tank
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 8.1L
$57.18
Delphi® Coolant Temperature Sensor for 2003 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: 2003 GMC Sierra 2500 HD Coolant Temperature Sensor
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$20.99
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Recovery Tank Cap
PartNumber: 15075118
Product Specifications
Notes: All Models; 4.8, 5.3 & 6.0 Liter; 8.1 Liter Gas; 6.6 Liter Turbo Diesel
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: 2003 GMC Sierra 2500 HD Recovery Tank Cap
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
$13.10 MSRP: ~~$24.70~~
You Save: $11.60 (47%)
Gates® Engine Coolant Standard Water Pump for 2003 GMC Sierra 2500 HD
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: 2003 GMC Sierra 2500 HD Engine Coolant Standard Water Pump
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$111.73
Dorman® OE Solutions Oil Cooler Line for 2003 GMC Sierra 2500 HD
PartNumber: 625-303
Product Specifications
Notes: w/UCT Tag
Color or Finish: Natural
Hose Attachment End 1: Male Quick Disconnect
Hose Attachment End 2: Male Quick Disconnect
Hose Material: Rubber/Metal
Hose Overall Length (In): 48"
OE Part Number: 15809062
UPC: 019495291770
Part Description: 2003 GMC Sierra 2500 HD OE Solutions Oil Cooler Line
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 8.1L
$52.87
Four Seasons® Thermal Engine Cooling Fan Clutch for 2003 GMC Sierra 2500 HD
PartNumber: 36786
Product Specifications
Notes: Reverse Rotation; Severe Duty Thermal Fan Clutch
Bolt Hole Quantity: 4
Bolt Quantity: 4
Bolt Thread: M8 x 1.25 Hole
Clutch Maximum Diameter: 7.4
Clutch Type: D - Severe Duty & Truck Fan Drive
Color: Raw Aluminum in Color
Distance From Clutch To Mounting Flange: 1.75
Electronic Clutch: Non Electronic
Fan Bolt Circle IN: 3.81
Fan Bolt Circle MM: 96.8
Material: Aluminum
Meets / Exceeds OEM: Yes
Mount Dia. IN: 1.86 HEX
Mount Dia. MM: 47 HEX
Mounting Hardware: Not Included
Mounting Hole Quantity: 4
Mounting Type: HEX
New or Reman: New
Overall Dia. MM: 188
Overall Height IN: 4.27
Overall Height MM: 108.3
Performance Rated: Yes
Pilot Depth IN: 0.78; 0.79
Pilot Depth MM: 20.1
Pilot Dia. IN: M36x2.000
Rotation: REV
SDS Required: No (135233618)
Style: Severe Duty
UPC: 096361367869
Use Type: Severe
Part Description: 2003 GMC Sierra 2500 HD Thermal Engine Cooling Fan Clutch
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$99.63
Four Seasons® Auxiliary Engine Cooling Fan for 2003 GMC Sierra 2500 HD
PartNumber: 37140
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: 096361089945
Part Description: 2003 GMC Sierra 2500 HD Auxiliary Engine Cooling Fan
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | All Engines
$92.19
View Related Parts
OEM (Genuine) 2003 GMC Sierra 2500 HD Pipe Assembly Gasket
PartNumber: 15203889
Product Specifications
Notes: 4.8, 5.3 & 6.0 Liter, 6.0 Liter
Item Dimensions: 3.2 x 1.7 x 0.2 inches
Item Weight: 0.30 Pounds
Fitment Type: Direct Replacement
Replaces: 12560438
Part Description: 2003 GMC Sierra 2500 HD Pipe Assembly Gasket
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
$6.43 MSRP: ~~$10.64~~
You Save: $4.21 (40%)
Delphi® Coolant Temperature Sensor for 2003 GMC Sierra 2500 HD
PartNumber: TS10075
Product Specifications
Connector Gender: Female
Connector Quantity: 1
Connector Shape: Oval
Mounting Type: Threaded Nut
Terminal Gender: Male
Terminal Quantity: 2
Terminal Type: Pin
UPC: 689604110423
Wiring Harness Included: No
Part Description: 2003 GMC Sierra 2500 HD Coolant Temperature Sensor
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | SLE | 8 Cyl 6.6L
2003 GMC Sierra 2500 HD | SLT | 8 Cyl 6.6L
2003 GMC Sierra 2500 HD | Base | 8 Cyl 6.6L
2003 GMC Sierra 2500 HD | WT | 8 Cyl 6.6L
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$18.77
Gates® Engine Coolant Standard Water Pump for 2003 GMC Sierra 2500 HD
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: 2003 GMC Sierra 2500 HD Engine Coolant Standard Water Pump
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$89.01
Dayco® Engine Coolant Water Pump for 2003 GMC Sierra 2500 HD
PartNumber: DP958
Product Specifications
Notes: Serpentine Belt Driven; Thermostat Bore Dia 52mm
UPC: 036687989871
Part Description: 2003 GMC Sierra 2500 HD Engine Coolant Water Pump
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$79.71
Dorman® OE Solutions Inlet Upper Oil Cooler Line for 2003 GMC Sierra 2500 HD
PartNumber: 625-166
Product Specifications
Notes: w/KWB Tag
Color or Finish: Natural
Hose Attachment End 1: Quick Disconnect
Hose Attachment End 2: Quick Disconnect
Hose Material: Rubber/Metal
Hose Overall Length (In): 61.8"
OE Part Number: 15065206
UPC: 019495062936
Part Description: 2003 GMC Sierra 2500 HD OE Solutions Inlet Upper Oil Cooler Line
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 8.1L
$43.82
Victor Reinz® Engine Coolant Crossover Pipe Mounting Set for 2003 GMC Sierra 2500 HD
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: 2003 GMC Sierra 2500 HD Engine Coolant Crossover Pipe Mounting Set
More Info
Vehicle Fitment
2003 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$16.17

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