Upgrade your Mercedes-Benz M-Class W164 with this set of two rear shock absorbers from Monroe. These twin-tube gas-pressure shocks are designed to provide optimum handling and stability on the road. Made with durable steel material, these shocks are guaranteed to last for 5 years. These rear shocks fit on the left and right side of the vehicle and have a reference OE/OEM number of 1643201531, 1643201631, 1643202631, 164201531, 1643202431, A1643200931, and 1643200931. They are also sealed and have a 100% accuracy of fit, ensuring a smooth and comfortable ride. Order now and experience the Monroe difference.