2018 Ram 3500 Thermostats

Your 2018 Ram 3500 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Thermostats you desperately need.

We currently carry 9 Thermostats to choose from for your 2018 Ram 3500, and our inventory prices range from as little as $28.49 up to $53.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Thermostats for the 2018 Ram 3500. We only sell parts from trusted brands like Carquest Premium so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 543 reviews on our Thermostats for the 2018 Ram 3500 from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Thermostats stock in-person!

Thermostats for Your 2018 Ram 3500

Motorad UltraStats – Thermostat: With Seal, 192 Degrees (Part No.5426-190)

Thermostat: With Seal, 192 Degrees

from

$53.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

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
See More

Carquest Premium – Engine Coolant HD Thermostat: With Seal, 203 Degrees (Part No.48792)

Engine Coolant HD Thermostat: With Seal, 203 Degrees

from

$28.49
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:
  • 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
See More

Carquest Premium – Standard Thermostat: With Seal, 190 Degrees (Part No.14289)

Standard Thermostat: With Seal, 190 Degrees

from

$36.49
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:
  • 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
See More

Carquest Premium – Standard Thermostat:With Seal, 192 Degrees (Part No.48799)

Standard Thermostat:With Seal, 192 Degrees

from

$41.99
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:
  • 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
See More

Carquest Premium – Standard Thermostat: With Seal, 180 Degrees (Part No.14288)

Standard Thermostat: With Seal, 180 Degrees

from

$36.49
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:
  • 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
See More

Carquest Premium – Standard Thermostat: With Seal, 180 Degrees (Part No.48798)

Standard Thermostat: With Seal, 180 Degrees

from

$32.49
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:
  • 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
See More

Motorad UltraStats – Thermostat: With Seal, 203 Degrees (Part No.5416-203)

Thermostat: With Seal, 203 Degrees

from

$31.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

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
See More

Carquest Premium – Standard Thermostat: With Seal, 190 Degrees (Part No.49219)

Standard Thermostat: With Seal, 190 Degrees

from

$34.49
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:
  • Precise fitting sealing edges prevent leakage and premature cooling.
  • Self-cleaning and self-aligning thermostat valve.
  • Stainless steel assembly and springs are engineered for long life and smooth performance.
See More

Carquest Premium – Thermostat 49218 (Part No.49218)

Thermostat 49218

from

$32.99
Original equipment design provides exact fit and performance.

Product Features:
  • Precise fitting sealing edges prevent leakage and premature cooling.
  • Self-cleaning and self-aligning thermostat valve.
  • Stainless steel assembly and springs are engineered for long life and smooth performance.
See More

FAQs for 2018 Ram 3500 Thermostats

What are the most popular Thermostats for the 2018 Ram 3500?

With 2 brands you can trust, our most popular Thermostats for the 2018 Ram 3500 parts are:
Standard Thermostat: With Seal, 190 Degrees
from $36.49
(26)
Standard Thermostat: With Seal, 190 Degrees
Thermostats
Standard Thermostat:With Seal, 192 Degrees
from $41.99
(22)
Standard Thermostat:With Seal, 192 Degrees
Thermostats

What are the best aftermarket Thermostats for the 2018 Ram 3500?

See what past customers had to say about our highest-rated Thermostats for the 2018 Ram 3500:
Standard Thermostat: With Seal, 180 Degrees
from $32.49
(10)
Standard Thermostat: With Seal, 180 Degrees
“Installed easy and works as advertised. Temps staying low.”
Standard Thermostat: With Seal, 180 Degrees
from $36.49
(2)
Standard Thermostat: With Seal, 180 Degrees
“It works”