2003 GMC Sierra 3500 Engine Coolant Thermostat Parts

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2003 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 8.1L Motorad

Thermostat-195 Degrees
Temperature 195F Includes seal OEM Recommended Temp
Standard
Product Attributes:
- Installation Tool Included: No
- Sealing Flange Outside Diameter: 1.8
- Flange Thickness: 0.05 In
- Bypass Diameter: 0.92 In
- Gasket/Seal Material: Rubber
- Jiggle Pin Weep Hole: No
- Bypass Length: 1.37 In
- Temperature (Degree): 195
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

This Part Fits the Following OEM/Substitute Numbers:

10226109, 12559269, 12559575, 12T55E, 131-121, 131-124, 13899, 13899ST, 15899, 1601-24119, 222, 24507563, 267-195, 26795, 33329, 35899, 3899, 9267195...VIEW MORE

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - GMC Sierra 3500	V	-	8 Cyl 8.1L	496

9 In Stock

$17.23 CAD

$20.68 CAD

Brand	Motorad
Part #	C97267-195
Condition	New
Warehouse	B

2003 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 6.6L Mishimoto

Chevrolet/GMC 6.6L Duramax Engine Low Temperature Thermostats (set of 2)
Low Temperature Thermostats (set of 2), fits Chevrolet/GMC 6.6L Duramax 2001-2016
Product Attributes:
- SellingPoint04: Mishimoto Lifetime Warranty
- SellingPoint05: N/a
- SellingPoint06: N/a
- SellingPoint07: N/a
- SellingPoint01: Fits 2001-2013 Chevrolet/gmc 6.6l Duramax
- SellingPoint02: Activates At Lower Temperature So Coolant Flows Through System Earlier
- SellingPoint03: Allows For Cooler Engine Temperatures
- TechSpec Chassis Codes: N/a
- SellingPoint08: N/a
- SellingPoint09: N/a
- TechSpec OEM Activation Temperature (F): N/a
- Installation Difficulty: 2
- SellingPoint10: N/a
- TechSpec Note: N/a
- Prop 65 (C, R or CR): Cr
- SellingPoint15: N/a
- Install Difficulty: 2
- SellingPoint11: N/a
- SellingPoint12: N/a
- TechSpec Engine Codes: N/a
- SellingPoint13: N/a
- SellingPoint14: N/a
- Prop 65 - Short Label: Prop65_warning.jpg
- TechSpec Applications: 2001-2016 Chevy Or Gmc With 6.6l Duramax Engine (any)--2001-2016 Chevrolet Silverado 2500hd/3500hd--2001-2016 Gmc Sierra 2500hd/3500hd
- TechSpec Includes: (1) 174f Thermostat--(1) 180f Thermostat--mishimoto Lifetime Warranty
- TechSpec Mishimoto Activation Temperature (F): N/a
The Mishimoto Chevrolet Duramax low temperature thermostats activate at a lower temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in warmer climates, or use their trucks under heavy load or strenuous driving conditions.Activating at a lower temperature means coolant will begin flowing through the system and allow for cooler temperatures.

Additional Fitment Information:

Vehicle	Block	CC	Fuel Type	Engine	CID
2003 - GMC Sierra 3500	V	6599	DIESEL	8 Cyl 6.6L	403

23 In Stock

$132.75 CAD

$159.30 CAD

Brand	Mishimoto
Part #	M1NMMTS-CHV-01DL
Condition	New
Warehouse	B

UPC: 748354804492

2003 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 6.6L Mishimoto

Chevrolet/GMC 6.6L Duramax High Temperature Thermostats (set of 2)
High Temperature Thermostats (set of 2), fits Chevrolet/GMC 6.6L Duramax 2001-2016
Product Attributes:
- SellingPoint04: Allows For Cooler Engine Temperatures
- SellingPoint05: Mishimoto Lifetime Warranty
- SellingPoint06: N/a
- SellingPoint07: N/a
- SellingPoint01: Fits 2001-2013 Chevrolet/gmc 6.6l Duramax
- SellingPoint02: Activates At Higher Temperature Allowing Engine Temperatures To Rise
- SellingPoint03: Ideal For Colder Climates
- TechSpec Chassis Codes: N/a
- SellingPoint08: N/a
- SellingPoint09: N/a
- TechSpec OEM Activation Temperature (F): N/a
- Installation Difficulty: 2
- SellingPoint10: N/a
- TechSpec Note: N/a
- Prop 65 (C, R or CR): Cr
- SellingPoint15: N/a
- Install Difficulty: 2
- SellingPoint11: N/a
- SellingPoint12: N/a
- TechSpec Engine Codes: N/a
- SellingPoint13: N/a
- SellingPoint14: N/a
- Prop 65 - Short Label: Prop65_warning.jpg
- TechSpec Applications: 2001-2016 Chevy Or Gmc With 6.6l Duramax Engine (any)--2001-2016 Chevrolet Silverado 2500hd/3500hd|--2001-2016 Gmc Sierra 2500hd/3500hd
- TechSpec Includes: (1) 185 F Thermostat--(1) 191 F Thermostat--mishimoto Lifetime Warranty
- TechSpec Mishimoto Activation Temperature (F): N/a
The Mishimoto Chevrolet Duramax high temperature thermostats activate at a higher temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in colder climates, or have trouble reaching operating temperatures.Activating at a higher temperature means the thermostats will allow the coolant to stay in the engine longer delaying the coolant flowing through the radiator, which allows the engine to warm up sooner.

Additional Fitment Information:

Vehicle	Block	CC	Fuel Type	Engine	CID
2003 - GMC Sierra 3500	V	6599	DIESEL	8 Cyl 6.6L	403

2 In Stock

$128.94 CAD

$154.73 CAD

Brand	Mishimoto
Part #	M1NMMTS-CHV-01DH
Condition	New
Warehouse	B

UPC: 748354804508

2003 GMC Sierra 3500 Engine Coolant Thermostat Mishimoto

Chevrolet/GMC 6.6L Duramax High Temperature Thermostats (set of 2)
High Temperature Thermostats (set of 2), fits Chevrolet/GMC 6.6L Duramax 2001-2016
Product Attributes:
- SellingPoint04: Allows For Cooler Engine Temperatures
- SellingPoint15: N/a
- SellingPoint05: Mishimoto Lifetime Warranty
- SellingPoint06: N/a
- SellingPoint07: N/a
- Install Difficulty: 2
- SellingPoint11: N/a
- SellingPoint01: Fits 2001-2013 Chevrolet/gmc 6.6l Duramax
- SellingPoint12: N/a
- TechSpec Engine Codes: N/a
- SellingPoint02: Activates At Higher Temperature Allowing Engine Temperatures To Rise
- SellingPoint13: N/a
- SellingPoint03: Ideal For Colder Climates
- SellingPoint14: N/a
- TechSpec Chassis Codes: N/a
- SellingPoint08: N/a
- SellingPoint09: N/a
- TechSpec Applications: 2001-2016 Chevy Or Gmc With 6.6l Duramax Engine (any)--2001-2016 Chevrolet Silverado 2500hd/3500hd|--2001-2016 Gmc Sierra 2500hd/3500hd
- TechSpec Includes: (1) 185 F Thermostat--(1) 191 F Thermostat--mishimoto Lifetime Warranty
- TechSpec OEM Activation Temperature (F): N/a
- SellingPoint10: N/a
- TechSpec Mishimoto Activation Temperature (F): N/a
- TechSpec Note: N/a
The Mishimoto Chevrolet Duramax high temperature thermostats activate at a higher temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in colder climates, or have trouble reaching operating temperatures.Activating at a higher temperature means the thermostats will allow the coolant to stay in the engine longer delaying the coolant flowing through the radiator, which allows the engine to warm up sooner.

Additional Fitment Information:

Vehicle	Sub Model
2003 - GMC Sierra 3500	SLT

2 In Stock

$128.94 CAD

$154.73 CAD

Brand	Mishimoto
Part #	M1NMMTS-CHV-01DH
Condition	New
Warehouse	B

UPC: 748354804508

2003 GMC Sierra 3500 Engine Coolant Thermostat Mishimoto

Chevrolet/GMC 6.6L Duramax Engine Low Temperature Thermostats (set of 2)
Low Temperature Thermostats (set of 2), fits Chevrolet/GMC 6.6L Duramax 2001-2016
Product Attributes:
- SellingPoint04: Mishimoto Lifetime Warranty
- SellingPoint15: N/a
- SellingPoint05: N/a
- SellingPoint06: N/a
- SellingPoint07: N/a
- Install Difficulty: 2
- SellingPoint11: N/a
- SellingPoint01: Fits 2001-2013 Chevrolet/gmc 6.6l Duramax
- SellingPoint12: N/a
- TechSpec Engine Codes: N/a
- SellingPoint02: Activates At Lower Temperature So Coolant Flows Through System Earlier
- SellingPoint13: N/a
- SellingPoint03: Allows For Cooler Engine Temperatures
- SellingPoint14: N/a
- TechSpec Chassis Codes: N/a
- SellingPoint08: N/a
- SellingPoint09: N/a
- TechSpec Applications: 2001-2016 Chevy Or Gmc With 6.6l Duramax Engine (any)--2001-2016 Chevrolet Silverado 2500hd/3500hd--2001-2016 Gmc Sierra 2500hd/3500hd
- TechSpec Includes: (1) 174f Thermostat--(1) 180f Thermostat--mishimoto Lifetime Warranty
- TechSpec OEM Activation Temperature (F): N/a
- SellingPoint10: N/a
- TechSpec Mishimoto Activation Temperature (F): N/a
- TechSpec Note: N/a
The Mishimoto Chevrolet Duramax low temperature thermostats activate at a lower temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in warmer climates, or use their trucks under heavy load or strenuous driving conditions.Activating at a lower temperature means coolant will begin flowing through the system and allow for cooler temperatures.

Additional Fitment Information:

Vehicle	Sub Model
2003 - GMC Sierra 3500	SLT

23 In Stock

$132.75 CAD

$159.30 CAD

Brand	Mishimoto
Part #	M1NMMTS-CHV-01DL
Condition	New
Warehouse	B

UPC: 748354804492

2003 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 6.0L Motorad

Fail-Safe Thermostat-187 Degrees
"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." Temperature 187F Includes seal with Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp
Fail-Safe
Product Attributes:
- Installation Tool Included: No
- Sealing Flange Outside Diameter: 2.13
- Flange Thickness: 0.05 In
- Bypass Diameter: 1.46 In
- Gasket/Seal Material: Rubber
- Jiggle Pin Weep Hole: Yes
- Bypass Length: 1.84 In
- Temperature (Degree): 187
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

This Part Fits the Following OEM/Substitute Numbers:

7456-187, 74561, 97456187, NI, P7456-187, SS187-6547

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - GMC Sierra 3500	V	5967	8 Cyl 6.0L	364

2 In Stock

$30.99 CAD

$37.19 CAD

Brand	Motorad
Part #	C977456-187
Condition	New
Warehouse	B

2003 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 8.1L Motorad

Thermostat-180 Degrees
Temperature 180F Includes seal Alternate Temp
Standard
Product Attributes:
- Installation Tool Included: No
- Sealing Flange Outside Diameter: 1.8
- Flange Thickness: 0.05 In
- Bypass Diameter: 0.92 In
- Gasket/Seal Material: Rubber
- Jiggle Pin Weep Hole: No
- Bypass Length: 1.37 In
- Temperature (Degree): 180
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

This Part Fits the Following OEM/Substitute Numbers:

12T55D, 15898, 1601-291052, 180-762, 267-180, 26780, 3898, 9267180, NI, P3898

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - GMC Sierra 3500	V	-	8 Cyl 8.1L	496

Brand	Motorad
Part #	C97267-180
Condition	New
Warehouse	B

2003 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 6.0L Motorad

Thermostat-187 Degrees
Temperature 187F Includes seal with Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp
Standard
Product Attributes:
- Installation Tool Included: No
- Sealing Flange Outside Diameter: 2.13
- Flange Thickness: 0.05 In
- Bypass Diameter: 1.46 In
- Gasket/Seal Material: Rubber
- Jiggle Pin Weep Hole: Yes
- Bypass Length: 1.84 In
- Temperature (Degree): 187
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

This Part Fits the Following OEM/Substitute Numbers:

12568911, 12570358, 12581594, 12581595, 12600171, 12600172, 12T121D, 131-143, 131-156, 14948, 1601-290245, 33963, 456-187, 45687, 506-186, 55687, 9456187, P45687...VIEW MORE

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - GMC Sierra 3500	V	5967	8 Cyl 6.0L	364

Brand	Motorad
Part #	C97456-187
Condition	New
Warehouse	B

2003 GMC Sierra 3500 Engine Coolant Thermostat - Front 8 Cyl 6.6L Motorad

Thermostat-185 Degrees
Temperature 185F Includes seal OEM Recommended Temp
Standard
Product Attributes:
- Installation Tool Included: No
- Sealing Flange Outside Diameter: 2.13
- Flange Thickness: 0.05 In
- Bypass Diameter: 1.18 In
- Gasket/Seal Material: Rubber
- Jiggle Pin Weep Hole: No
- Bypass Length: 1.36 In
- Temperature (Degree): 185
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

This Part Fits the Following OEM/Substitute Numbers:

12680456, 12T99D, 131-163, 14728, 1601-290243, 33946, 389-195, 447-185, 54785, 9447185, 97241129, QRT57

Additional Fitment Information:

Vehicle	Block	CC	Position	Engine	CID
2003 - GMC Sierra 3500	V	6599	Front	8 Cyl 6.6L	403

Brand	Motorad
Part #	C97447-185
Condition	New
Warehouse	B

2003 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 6.0L Motorad

Thermostat-160 Degrees
Temperature 160F Includes seal with Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. Alternate Temp
Standard
Product Attributes:
- Installation Tool Included: No
- Sealing Flange Outside Diameter: 2.13
- Flange Thickness: 0.05 In
- Bypass Diameter: 1.46 In
- Gasket/Seal Material: Rubber
- Jiggle Pin Weep Hole: Yes
- Bypass Length: 1.84 In
- Temperature (Degree): 160
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.