A typical thermostat for a 2002 Dodge Ram 1500 costs roughly $15 to $60, depending on brand and whether you buy OEM or aftermarket. This range covers thermostats sold alone as well as kits that include gaskets or other seals. Prices can vary by engine variant and retailer.
What affects the price
Prices vary by brand, whether the part is OEM or aftermarket, and whether you purchase a bare thermostat or a kit that includes gaskets and seals. The engine variant in your Ram 1500 (3.7L, 4.7L, or 5.9L options were common in 2002) can also influence availability and price.
- OEM Mopar thermostat: typically around $40–70.
- Aftermarket brands (Gates, Motorcraft, ACDelco, Dorman, etc.): about $15–35.
- Thermostat kits (thermostat plus gasket and seals): roughly $20–60.
Prices shown reflect typical listings from auto parts retailers and online marketplaces as of 2024–2026 and may vary by engine variant, location, and whether a core charge applies.
Where to buy
Here are common places to shop for a 2002 Dodge Ram 1500 thermostat. Compare prices and check if a core charge applies. Availability can differ by region and engine type.
- Auto parts chains (AutoZone, O'Reilly, Advance Auto Parts): aftermarket thermostats typically $12–35; kits may be $25–60; core charges may apply.
- Online retailers and marketplaces (RockAuto, Amazon, eBay): wide range of brands; expect $12–40 for thermostats and up to $60 for kits, depending on inclusions and shipping.
- Dealership or Mopar parts site: OEM Mopar thermostats usually $40–70, with potential stock or availability limitations.
When shopping online, verify compatibility with your exact engine (e.g., 3.7L, 4.7L, or 5.9L) and confirm whether the price includes a gasket or a core charge.
What to consider when buying
Temperature rating and engine compatibility
Most Dodge engines use a thermostat rated around 195°F (90°C), but some variants may use 180°F or another rating. Check your owner's manual or parts diagram for the exact spec for your 2002 Ram 1500 engine variant.
Included parts and installation kit
Consider whether you need a standalone thermostat or a kit with a new gasket, O-rings, and possibly a hose clamp. A kit can simplify installation and prevent leaks, but may cost more upfront.
Installing a thermostat is a straightforward job for someone with basic cooling-system tools, but improper reassembly or air in the cooling system can lead to cooling issues. If in doubt, consult a mechanic or technician.
Summary
For a 2002 Dodge Ram 1500, plan to spend roughly $15–60 on a thermostat, with OEM Mopar parts tending to be at the higher end of the range. Decide between an aftermarket option or an OEM unit, and consider whether you want a bare thermostat or a kit with gaskets. Shop around at auto parts stores and online retailers to compare prices and confirm compatibility with your engine variant. A correctly rated thermostat helps maintain proper engine temperature and heater performance, and a proper installation prevents leaks and future cooling issues.