The cost to replace a thermostat on a 2017 Ram 1500 typically ranges from about $10 to $100 for the part alone, with higher prices for OEM or assembly units and additional costs if you hire a shop for installation.
In 2017, Ram offered three engines in the 1500 lineup: the 3.6L V6, the 5.7L Hemi V8, and the 3.0L EcoDiesel. The exact thermostat part and price depend on which engine you have and whether you choose an aftermarket replacement or an OEM Mopar assembly. Below is a breakdown of typical price ranges and shopping options, plus installation considerations.
Price ranges by part type and engine
Prices differ depending on the type of thermostat you buy and the engine in your truck. The following ranges reflect common market prices from major auto parts retailers and may vary by region and stock.
- Thermostat only (aftermarket, no housing): typically $10–$25
- Thermostat with housing (post-market or OEM-style housing): $25–$60
- OEM Mopar thermostat assembly (thermostat with housing and sensor): $60–$120
Prices can vary by brand, region, and whether the part is aftermarket or OEM. Always confirm compatibility with your exact engine and model year before purchasing.
Where to shop and price comparisons
Consumers can compare prices across multiple retailers to find the best deal. Common options include:
- Auto parts chains (AutoZone, O'Reilly Auto Parts)
- Online retailers (RockAuto)
- Mopar official parts (Mopar) and dealer channels
- Marketplace retailers (Amazon, sometimes eBay), with attention to seller reliability
Stock and pricing fluctuate; checking online or calling ahead can help ensure you get the right part for your engine and the best price.
Installation considerations
Replacing the thermostat is a feasible DIY project for many hobbyists, especially if you have basic hand tools and a coolant catch pan. Be prepared to drain and bleed the cooling system, replace the thermostat gasket or O-ring, and refill the coolant to proper levels. If you prefer professional help, labor costs vary by region but commonly fall in the range of about $60–$150, depending on local shop rates and whether any extra components (like the housing or sensors) are involved.
For a DIY approach, follow the vehicle's service manual torque specifications and bleeding procedures to avoid air pockets and overheating risk.
DIY quick reference steps
Below are general steps some owners follow when replacing a thermostat. This is not a substitute for your service manual.
- Disconnect the negative battery cable and drain the cooling system.
- Locate the thermostat housing and disconnect related hoses and clamps.
- Remove the housing, take out the old thermostat, and clean the mating surfaces.
- Install the new thermostat with the correct orientation and gasket, reattach the housing, and reconnect hoses.
- Refill the cooling system, bleed air, and start the engine to check for leaks and proper temperature regulation.
Note: Always consult your owner's manual or a service manual for torque specs and bleeding procedures. Incorrect installation can lead to overheating or coolant leaks.
Summary
A thermostat replacement for a 2017 Ram 1500 typically costs between $10 and $120 for the part itself, with OEM assemblies at the higher end. Labor, if you hire a shop, adds to the total and varies by region and engine, ranging roughly from $60 to $150. Engine type (3.6L, 5.7L, or 3.0L EcoDiesel) and whether you buy aftermarket or OEM parts influence the price. Shopping around online and at multiple retailers helps you find the best deal, and a DIY replacement is a practical option for many owners.