2017 Subaru Forester 2.5L motor use two different drain plug sizes

As of 2017, Subaru has used two different oil drain plug sizes for its Forester 2.5L models.

If you search our size chart, you will see suggestions for both sizes. The only way to determine your specific size without checking manually is to contact Subaru with your vehicle information; they should be able to identify which drain plug your car uses.

If they identify your oil drain plug part # as 32195AA020, you will need our 108 series valves. If you're given any other part number,  you will use the 105 series valves.