Hummer H3 Thermostats
Your Hummer H3 will be happy to know that the search for the right Thermostats you’ve been looking for is over! Advance Auto Parts has 3 different Thermostats for your vehicle, ready for shipping or in-store pick up. The best part is, our Hummer H3 Thermostats start from as little as $34.99.
When it comes to your Hummer H3, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Thermostats brands so you can shop with complete confidence. We’re sure you will get the right product to keep that H3 running for a long time.
We even have reviews of our OEM and aftermarket Thermostats products to help you buy with confidence. Hear from other customers via the 180 reviews on parts for your Hummer H3.
Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Thermostats for your H3, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!
Compare 12 Hummer Thermostats
Motorad – Standard Thermostat: With Seals, 180, 185 Degrees (Part No.447448)
from
$46.99
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.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: With Seal, 187 Degrees (Part No.14948)
from
$17.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. 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.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: With Seal, 185 Degrees (Part No.14728)
from
$43.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. 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.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: With Seal, 180 Degrees (Part No.14738)
from
$42.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. 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.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: With Seal, 187 Degrees (Part No.15158)
from
$34.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. 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.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: With Seal, 195 Degrees (Part No.14399)
from
$28.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. 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.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Motorad UltraStats – Thermostat: With Seal, 187 Degrees (Part No.5456-187)
from
$28.99
UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resitance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components.
Product Features:
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Product Features:
- Heavy gauge stainless steel components offer increased reliability and long-lasting durability
- Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
- Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
- AccuSpring Design for stable temperature control and increased cabin comfort
Mr. Gasket – Tstat (Part No.6368)
from
$36.99
Designed to open at 180 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.
Product Features:
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Product Features:
- Opens sooner than stock at 180 degrees
- High flow design for performance applications
- Includes rubber o-ring seal/gasket
- Incorporates pressure relief valve
Motorad – Standard Thermostat: With Seal, 187 Degrees (Part No.524-190)
from
$17.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. 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.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Motorad UltraStats – UltraStat Thermostat – 187 Degrees (Part No.5523-187)
from
$60.99
UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resitance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components.
Product Features:
See More
Product Features:
- Heavy gauge stainless steel components offer increased reliability and long-lasting durability
- Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
- Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
- AccuSpring Design for stable temperature control and increased cabin comfort
Motorad UltraStats – UltraStat Thermostat – 160 Degrees (Part No.5523-160)
from
$60.99
UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resitance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components.
Product Features:
See More
Product Features:
- Heavy gauge stainless steel components offer increased reliability and long-lasting durability
- Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
- Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
- AccuSpring Design for stable temperature control and increased cabin comfort
Carquest Premium – Standard Thermostat: With Seal, 180 Degrees (Part No.423-180)
from
$43.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. 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.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
FAQs for Hummer H3 Thermostats
What are the most popular Thermostats for the Hummer H3?
With 2 brands you can trust, our most popular Thermostats for the Hummer H3 are:
Find Your Hummer H3 Thermostats by Year
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