This is an impact sensor for the left-hand side of a 1999-2002 Toyota 4Runner. It is a direct replacement for the original part, with the manufacturer part number of 89174-35020. This item is compatible with a variety of other part numbers and fits the fitment type of Direct Replacement. It is perfect for those looking for a performance and racing part, and can be found in the Other, Electrical Components, Auto Performance Parts, and Parts & Accessories categories of Motors.