Arnott MR-4359 Suspension Shock Absorber - Rear Right

Arnott MR-4359 Rear Right Magnetic Shock

Arnott MR-4359 is a rear right magnetic shock for the 2013-2019 Cadillac XTS with GM MagneRide. It is a direct OE replacement for the factory electronic suspension setup and connects to the vehicle ECU without modification.

Key Features

• Fits 2013-2019 Cadillac XTS, rear right
• Direct OE replacement for GM MagneRide applications
• Monotube damper with magnetorheological fluid for electronically controlled damping
• Electromagnetic coil adjusts suspension stiffness through the vehicle control system
• Pre-assembled with a new steel coil spring, upper strut mount, bump stop, spring seat, and isolator
• Grade Type: Standard

Product Details

The Arnott Magnetic Shock line focuses on OE-style replacement parts for vehicles equipped with electronically controlled suspension. MR-4359 is built for the rear right position on the Cadillac XTS and uses magnetorheological fluid, a synthetic oil with iron particles that respond to an electromagnetic field. That control method allows the suspension to change damping characteristics through the factory system, preserving the original MagneRide function on the 2013-2019 Cadillac XTS. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Can Address

• Rear suspension noise from a worn electronic shock absorber
• Loss of damping control in MagneRide-equipped Cadillac XTS models
• Uneven ride quality at the rear right corner
• Suspension warning concerns related to a failing OE-style shock assembly
• Ride harshness caused by degraded internal damping components

Installation Notes and Tips

Fits 2013-2019 Cadillac XTS, rear right. Verify the vehicle is equipped with GM MagneRide before ordering. The shock connects to the ECU with no modifications, which helps simplify replacement on the factory electronic suspension system. Confirm rear right placement and compare the original part number before installation. Part number MR-4359 is also referenced as MR4359 in some catalogs.

Quality Assurance

Arnott supplies this magnetic shock as a direct OE replacement for the Cadillac XTS MagneRide application. The pre-assembled design supports a cleaner replacement process, and the part is engineered to work with the vehicle’s original electronic suspension controls. Part number MR-4359 is built to standard grade specifications.