O2 Oxygen Sensor; Downstream (06-11 Impreza)Find parts that fit my vehicle

About this item
YOUR TRUSTED DIY VIDEO SOURCE: TRQ offers the largest catalog of DIY videos for replacement parts, making installation easier and repairs more accessible. Our mission is to help you "View Before You Do," with hundreds of new videos added weekly.
TRUST & COMPATIBILITY: For over 25 years, TRQ has been the premium choice for direct-fit replacement parts. Confirm fitment with the Amazon Garage "confirmed fit" feature and review our full compatibility chart below before purchase.
EASE OF INSTALLATION: Save time and effort with pre-assembled components designed as direct replacements for the original equipment, ensuring precise fit and eliminating the need for modifications.

Product Description
O2 Oxygen Sensor

Fitment
Saab 9-2X
2006 - H4 2.5L Naturally Aspirated Upstream Bank 1 Sensor 1
Subaru Forester
2006-10 - H4 2.5L Naturally Aspirated Upstream Bank 1 Sensor 1
Subaru Impreza
2006-11 - H4 2.5L Naturally Aspirated Upstream Bank 1 Sensor 1
Subaru Legacy
2004 - H4 2.5L Engine Designation EJ259 Upstream Bank 1 Sensor 1
2006-09 - H4 2.5L Naturally Aspirated Upstream Bank 1 Sensor 1
Subaru Outback
2004 - H4 2.5L Engine Designation EJ259 with SULEV30 Upstream Bank 1 Sensor 1
2005 - H4 2.5L Naturally Aspirated with California Emissions Upstream Bank 1 Sensor 1
2006-09 - H4 2.5L Naturally Aspirated Upstream Bank 1 Sensor 1

Product Attributes
Thread Diameter: 0.71 in
Wrench Size: 0.87 in
Thread Diameter: 18 mm
Wiring Harness Length: 19.76 in
Wrench Size: 22 mm
Overall Length: 24.02 in
Terminal Quantity: 4
Wire Quantity: 4
Wiring Harness Length: 502 mm
Overall Length: 610 mm
Terminal Type: Butt
Connector Gender: Female
Terminal Gender: Female
Thread Size: M18x1.5-6e
Universal Or Specific Fit: Specific
Connector Shape: Square
Grade Type: Standard Replacement
Mounting Type: Threaded
Sensor Type: Wide-Band
Heated: Yes
Features & Benefits: Highest Quality Materials
Sensor Design: Planar
Features & Benefits: Quality Tested - built to a strict level of product standards.

Product Features
Application Specific Design: No modifications and pre-calibrated
Isotatic-pressed and plasma-sprayed for extended service life
Double-Layered 310S Stainless Steel: Additional protection from moisture and debris
Restored Engine Performance: Improved fuel economy and lower emissions

Item Details
TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for improved strength and durability, and plasma-sprayed to improve sensitivity and prolong the service life of the sensors. Oxygen sensors wear out over time and should be replaced every 60,000 miles to prevent poor engine performance. TRQ recommends replacing the oxygen sensors in sets to optimize fuel economy and reduce overall emissions. All products are fit and road-tested in our Massachusetts R&D facility to ensure we deliver on our promise of Trusted Reliable Quality.

What's in the box
O2 Oxygen Sensor

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov