- This product is a package of 10 control arm kits for the Mercedes-Benz GLK X204. It includes ball head sling arms, cross tie bars, and bushings. The kit has OE/OEM part numbers 2043308011, 2043308111, A2043308011, and A2043308111. It comes with a manufacturer warranty of 6 months and is made in China. The control arm kit can be placed below, lower, left, right, or above the vehicle.