【Vehicle Compatibility】Replacement shock strut coil spring assembly set Fit for Toyota Sienna 2011 2012 2013 2014 【Reference OE Number】Replace complete Strut Assembly for 172783 172784 【Includes】 2PCS Struts Front Left and Right. A shock absorber assembly is composed of a strut, coil spring, strut mount, boot, bumper kit, spring seat, and isolator. 【Function】 The SCITOO shock Absorber Assembly is designed with precision to improve the load-bearing capacity and fatigue resistance of the pillars and shock absorbers, providing better durability and long-term stability. When driving on bumpy roads, maximize ride comfort and braking performance to reduce the impact of bumpy roads. 【Note】Please check the product pictures, OE numbers and fitment information before purchasing to make sure this is the correct one what you need.