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Monroe 40323 Air Suspension Spring - Rear Left
| Brand | Monroe 40323 |
|---|---|
| Position | Rear Left |
| Maximum Height | 17.33 |
| Maximum Height | 440 |
| Minimum Height | 142 |
| Minimum Height | 5.593 |
| Mounting Hardware Included | No |
| Bellows Material | Rubber |
| Grade Type | Premium |
| Mounting Stud Quantity | 1 |
| Bellows Color | Black |
| Bellows Material Thickness | 0.098 |
| Bellows Material Thickness | 2.5 |
| Piston Material | Steel |
| 9719 | Rolling lobe |
| 9720 | 0 |
| 9721 | 0 |
| 9722 | 142 |
| 9722 | 5.593 |
| 9723 | 137.5 |
| 9723 | 5.416 |
| Product line | OESpectrum |
| Fits | Cadillac · 7 vehicles |
Rolling lobe design. Helps deliver controlled suspension movement and a smoother ride.
Rubber bellows construction. Uses a steel piston and premium-grade materials for air spring service.
OE-style ride control. OESpectrum focuses on restoring original air suspension function.
Cross-references Continental 40323, 22778104 and 23126011 for the same application. See all 8.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Product Overview
Monroe OESpectrum air suspension spring 40323 restores original air ride function with controlled height and firmness adjustment. It is built for drivers who need a smoother ride and consistent suspension response.
Fits 2013-2019 Cadillac XTS, rear left.
Key Features
- Rolling lobe air spring design for controlled suspension movement.
- Rubber bellows with a steel piston for durable air spring construction.
- Premium-grade replacement for restoring air ride performance.
- Black bellows finish with a single mounting stud.
- Mounting hardware is not included.
Detailed Description
This Monroe OESpectrum air suspension spring is engineered to return the suspension to proper air ride operation by allowing ride height and firmness to be adjusted through air pressure. The rubber bellows and steel piston support controlled movement, while the rolling lobe design helps smooth road impacts. Part number 40323 is a direct-fit replacement for the specified Cadillac XTS application and is identified by the same part number 40323 in cross-reference listings.
The OESpectrum line focuses on OE-style ride control and consistent suspension response. For Cadillac XTS owners replacing a worn air spring, this part helps restore the vehicle’s original air suspension behavior without changing the intended system function.
Common Issues This Part Can Address
- Loss of air ride height control.
- Uneven suspension stance on the equipped corner.
- Harsh ride caused by a worn air spring.
- Reduced firmness adjustment in the air suspension system.
- Air spring deterioration from age and road exposure.
Installation Notes and Tips
Verify the rear left fitment before ordering. Inspect the air suspension lines, fittings, and related components during replacement so the new spring can operate correctly. Confirm that the mounting stud and air spring seating surfaces are clean and undamaged before installation.
Quality Assurance
Monroe is a recognized suspension brand with OE-style replacement coverage, and the OESpectrum line is positioned for restoring original ride characteristics. Part number 40323 is built as a premium-grade air suspension spring for the listed application.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019 | Cadillac | XTS | Rear Left | Independent Air Spring; OESpectrum |
| 2018 | Cadillac | XTS | Rear Left | Independent Air Spring; OESpectrum |
| 2017 | Cadillac | XTS | Rear Left | Independent Air Spring; OESpectrum |
| 2016 | Cadillac | XTS | Rear Left | Independent Air Spring; OESpectrum |
| 2015 | Cadillac | XTS | Rear Left | Independent Air Spring; OESpectrum |
| 2014 | Cadillac | XTS | Rear Left | Independent Air Spring; OESpectrum |
| 2013 | Cadillac | XTS | Rear Left | Independent Air Spring; OESpectrum |
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