PARTSBENCH

Parts Bench › Parts › 2011 Subaru Outback › Thermostat

2011 Subaru Outback Thermostat

The thermostat keeps the engine at the right temperature by controlling coolant flow.

Compare thermostat for your Outback in the app

Signs it may need replacing

At a glance

PartThermostat
Cooling › Water Pump & Thermostat
Typical lifeOften 10 years or 100,000 miles.
DIY difficultyIntermediate
Usually under a housing at the end of the upper radiator hose.
Related serviceCoolant flush: Every 60,000 miles or 5 years
Some long-life coolants go 100,000+ miles.

Lifespans and difficulty are general. They vary with the engine, trim, driving and climate, and your owner's manual and a qualified mechanic should have the final say.

Before you buy

Use the right temperature rating, replace the gasket or seal, and bleed air from the cooling system afterward.

Confirm the part fits your exact 2011 Subaru Outback by checking your VIN, engine size and trim with the seller. The Outback was sold with different options across the 2011 model year, and a part that fits one build may not fit another.

Where to buy a 2011 Subaru Outback thermostat

These searches are set up for your vehicle and the part.

Links to eBay and other stores are affiliate links. We may earn a commission if you buy, at no extra cost to you. Parts Bench is not a store and does not sell parts. Always confirm fitment with the seller before you buy.

Related Outback parts

All 2011 Subaru Outback parts and maintenance ›