Facet 7.3351 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Subaru and Scion

Facet 7.3351 is an engine coolant temperature sensor for select Subaru and Scion applications. It provides the temperature signal used by the engine management system to monitor coolant conditions and support proper fuel and cooling control. This Facet coolant temperature sensor fits a wide range of Subaru models, including Legacy, Outback, Impreza, Forester, BRZ, and XV Crosstrek, plus the 2013 Scion FR-S.

Key Features

• Engine coolant temperature sensor for OE-style temperature monitoring
• Fits 2005-2014 Subaru and Scion applications listed below
• Facet part number 7.3351 for direct catalog identification
• Application-specific fitment for Subaru Legacy, Outback, Impreza, Forester, BRZ, and XV Crosstrek
• Also fits 2013 Scion FR-S

Detailed Description

Facet 7.3351 is an engine coolant temperature sensor used to report coolant temperature to the vehicle control system. Accurate coolant temperature input is important for cold-start fueling, warm-up strategy, fan operation, and overall engine management. This part number 7.3351 covers multiple Subaru platforms from 2005 through 2014, including Subaru Legacy, Outback, Impreza, Forester, BRZ, and XV Crosstrek, along with the 2013 Scion FR-S. For 2006-2008 Subaru Forester and 2006-2007 Subaru Impreza, the fitment notes specify cylinder head location.

What It Helps Address

• Incorrect coolant temperature readings
• Illuminated engine warning light related to temperature input
• Hard starting or rough cold operation tied to sensor signal issues
• Cooling fan control problems caused by inaccurate temperature data
• Fuel mixture and warm-up control concerns

Installation Notes and Tips

Verify the connector style, thread location, and engine application before installation. On listed Subaru Forester and Impreza applications with cylinder head location notes, confirm the sensor position on the cylinder head before ordering. Compare the original sensor to Facet 7.3351 and clear any stored diagnostic trouble codes after installation if required by the vehicle.

Quality Assurance

Facet is a recognized aftermarket brand for engine management and sensor applications. This part cross-references OE-style coolant temperature sensor applications for the same vehicle coverage.