For a 2018 Dodge Journey, thermostat replacement typically costs about $130 to $350 at a shop, including parts and labor. If you provide the parts yourself and handle the installation, you may pay roughly $40 to $100 for parts alone.
Below is a detailed look at what drives those costs, what parts and labor are involved, and how to navigate quotes from shops or consider a DIY approach if you have the right skills.
What drives the price
Several factors influence the final bill for a thermostat replacement on the Dodge Journey. The components below cover the main cost drivers you’ll encounter.
- Thermostat unit (includes the valve and basic components): $15–$40
- Coolant and related fluids (drain and refill may be needed): $5–$15
- Gasket or O-ring for the thermostat housing: $3–$10
- Thermostat housing replacement (if the housing is cracked or corroded): $20–$100
In practice, parts costs typically run about $40 to $160, depending on whether you need the housing, extra gaskets, or additional coolant. Higher-end aftermarket parts or OEM items can raise this range slightly.
Labor and total price expectations
Labor is the major variable after parts. The following estimates reflect typical scenarios for a 2018 Dodge Journey.
- Estimated labor time: 1–2 hours
- Labor rate: $75–$120 per hour (varies by region and shop)
- Estimated labor cost: $75–$240
- Estimated total (parts + labor): $118–$400
Keep in mind that some shops may add fees for coolant disposal, system bleed procedures, or diagnostic time. Always request a written estimate that itemizes parts, labor, coolant, and any disposal or shop fees before work begins.
DIY considerations
Replacing a thermostat can be within reach for a mechanically proficient DIYer, but it carries risks such as coolant burns, leaks, or improper installation leading to overheating. If you choose to DIY, verify that you have the correct thermostat part for the 2018 Journey, the proper tools, and a plan to bleed the cooling system correctly after reassembly.
DIY quick reference
- Tools typically needed: socket set, screwdrivers, pliers, coolant catch pan, and a method to bleed air from the cooling system
- Key steps: drain coolant, remove thermostat housing, replace thermostat and gasket, refit housing, refill and bleed coolant, start engine and check for leaks
DIY can save money on parts and labor, but if you’re unsure about any step or the vehicle shows signs of overheating after replacement, consult a professional to avoid engine damage.
Summary
Replacing the thermostat on a 2018 Dodge Journey generally costs about $130 to $350 at a repair shop, with parts-only DIY costs around $40 to $100. The final price hinges on parts needs (housing, gaskets, coolant), local labor rates, and whether additional cooling-system work is required. Always obtain a written estimate, compare a few shops, and consider your comfort level with a DIY replacement before proceeding.


