【Warranty】2 Years. (Improve fuel efficiency & Stable performance & Durable) 【Placement on Vehicle】▲Upstream, Front, Pre-cat ▲Sensor Type : Heated. ▲Wire Count : 4-Wire ▲Wire Harness Length : 12.60 IN 【Direct Fit Application】234-9109 upstream o2 sensor repleacment 2012 2013 2014 for Subaru Impreza 2.0L H4, 2013 2014 for Subaru XV Crosstrek 2.0L H4, 2011 2012 2013 for Subaru Forester 2.5L H4 【Interchange Part Number】234-9109, 2349109, 234 9109, 22641-AA610, 22641 AA610, 22641AA610, 24851, 18081 【Service Guaranteed】Must pass a rigorous professional practice loading test before sale and shipment. 100% satisfaction after sale services and technical assistance. Please rest assured to purchase.If you have any questions, contact with us, we will reply you in 24 hours and offer the solve way for you.Hope you have a good shopping! 234-9109 upstream o2 sensor repleacment 2012-2014 for Subaru Impreza 2.0L H4, 2013-2014 for Subaru XV Crosstrek 2.0L H4, 2011-2013 for Subaru Forester 2.5L H4