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Arnott MR-3440 Shock Absorber - Rear Left
| Brand | Arnott MR-3440 |
|---|---|
| Position | Rear Left |
| Product line | NEW |
| Fits | Cadillac · 4 vehicles |
OE-style replacement. Delivers the same highly adaptive ride as the original magnetic shock.
Magnetorheological fluid. Instantly changes viscosity and stiffness for responsive damping.
No modifications needed. Connects to the ECU for a straightforward installation.
Cross-references Cadillac 15148389 and Cadillac 19302765 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Arnott MR-3440 Rear Left Magnetic Ride Shock
Arnott MR-3440 is an OES rear left suspension shock absorber for the 2007-2010 Cadillac STS with AWD or RWD and the GM magnetorheological damper system (Z95 RPO). It restores the adaptive ride control function used on the Cadillac STS rear suspension while connecting to the vehicle ECU with no modifications.
Key Features
- Rear left magnetic ride shock for the Cadillac STS
- Fits 2007-2010 Cadillac STS, rear left
- For vehicles equipped with GM magnetorheological damping system (Z95 RPO / F55 note)
- Monotube damper design with magnetorheological fluid
- Electromagnetic coil control changes damping response electronically
- Direct ECU connection with no vehicle modifications
- Grade Type: Standard
Product Details
This Arnott NEW line shock absorber is built for the Cadillac STS rear suspension where electronically controlled damping is required. The MR-3440 uses magnetorheological fluid with iron particles that respond to electromagnetic coils, allowing the damping characteristics to change as the system commands. This supports the adaptive ride behavior expected from the OE-style magnetic ride setup on the Cadillac STS.
This part cross-references Cadillac 15148389 and 19302765 for the same application. Use MR-3440 when servicing a 2007-2010 Cadillac STS rear left magnetic ride shock and you need a direct-fit replacement for the original electronic damper.
Common Problems This Part Can Address
- Rear suspension noise from a worn electronic shock absorber
- Harsh or inconsistent ride quality on the Cadillac STS
- Loss of adaptive damping response from the magnetic ride system
- Warning lights or suspension faults related to the rear damper circuit
- Uneven rear suspension control during normal driving
Installation Notes
Fits 2007-2010 Cadillac STS, rear left. Confirm the vehicle is equipped with the GM magnetorheological damper system before ordering. The shock connects to the ECU without modifications, and the application is specific to the rear left position on AWD or RWD STS models with the correct suspension option.
Quality Assurance
Arnott’s NEW line focuses on direct replacement suspension components for vehicles with electronic ride control systems. MR-3440 is engineered as an OES rear magnetic ride shock for the Cadillac STS platform and follows the original electronic damping architecture used by the vehicle.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Cadillac | STS | Rear Left | Fits vehicles with Magneride RPO Code F55.; NEW |
| 2009 | Cadillac | STS | Rear Left | Fits vehicles with Magneride RPO Code F55.; NEW |
| 2008 | Cadillac | STS | Rear Left | Fits vehicles with Magneride RPO Code F55.; NEW |
| 2007 | Cadillac | STS | Rear Left | Fits vehicles with Magneride RPO Code F55.; NEW |
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