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- 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 2500 HD | V | - | 8 Cyl 8.1L | 496 |
- 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 2500 HD | V | 6599 | Front | 8 Cyl 6.6L | 403 |
- 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 2500 HD | V | 6599 | DIESEL | 8 Cyl 6.6L | 403 |
- 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 2500 HD | WT |
- Fail-Safe Thermostat-195 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 195F Includes seal OEM Recommended Temp
- Fail-Safe
- 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:
1601-291001, 7267-195, 76795, 97267195, NI, P7267-195, SS195-7627
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | - | 8 Cyl 8.1L | 496 |
- 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 2500 HD | V | - | 8 Cyl 8.1L | 496 |
- 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 2500 HD | V | 5967 | 8 Cyl 6.0L | 364 |
- Thermostat Kit-180 And 185 Degrees
- Temperature 180F & 185F Includes seals Thermostat kit includes front & rear thermostats OEM Recommended Temp
- Standard
- Product Attributes:
- Installation Tool Included: No
- Sealing Flange Outside Diameter: 2.2
- Flange Thickness: 0.05 In & 0.05 In
- Bypass Diameter: 1.18 In & 1.18 In
- Gasket/Seal Material: Rubber
- Temperature (Degree): 180 And 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:
12T024K, 1601-335239, 4034kt, 447448, 44748, 448744, 54748, 9447448, NI, P44748, QRT2
Additional Fitment Information:
| Vehicle | Block | CC | Position | Engine | CID |
|---|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | 6599 | Cylinder Head | 8 Cyl 6.6L | 403 |
- 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.
This Part Fits the Following OEM/Substitute Numbers:
14946, 160-654, 364-160, 456-160, 45660, 55660, 9456160
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 2500 HD | V | 5967 | 8 Cyl 6.0L | 364 |
- 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 2500 HD | V | 5967 | 8 Cyl 6.0L | 364 |
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