The Dodge Avenger typically has one thermostat in its cooling system.
Across its production years (primarily 2007–2014) and the common engine options (notably a 2.4-liter inline-four and an optional 3.5-liter V6), the Avenger’s cooling circuit is designed around a single thermostat that regulates when coolant flows to the radiator. The thermostat is housed in the engine-side housing near the upper radiator hose. Public documentation and common maintenance guidance describe this single-thermostat setup for the standard Avenger lineup; there is no widely cited dual-thermostat configuration for these models.
Engine configurations and thermostat setup
The Avenger was offered with at least two main engines during its run: a 2.4L inline-four and a 3.5L V6. In both configurations, the cooling system centers on a single thermostat. This thermostat governs coolant flow to the radiator and heater circuit, helping the engine reach and maintain operating temperature efficiently. Location and access are similar across engines, typically involving the thermostat housing connected to the engine and upper radiator hose.
2.4-liter inline-four
For the 2.4L engine, service manuals describe a single thermostat in the standard cooling path. Replacement and diagnostics follow typical procedures for Thermostat and housing work on Chrysler/DT platforms, with attention to coolant drainage, gasket integrity, and hose connections.
3.5-liter V6
The 3.5L V6 configuration also relies on a single thermostat in the primary cooling loop. Procedures mirror those of other Chrysler 3.5L installations, focusing on the thermostat housing, proper sealant/gasket seating, and ensuring the cooling system is bled of air during service.
Summary
In brief, a Dodge Avenger generally uses one thermostat in its cooling system, regardless of the common engine options. This single-thermostat design is standard across the model years most buyers encounter, simplifying maintenance and replacement. For precise repair steps or engine-specific notes, consult the vehicle’s service manual or a dealership technician.