Monroe Shocks & Struts 90004C rear air spring to coil spring conversion kit for the 2003-2011 Ford Crown Victoria and other vehicles swaps a factory air suspension for a conventional one.
- Application-tuned shock/strut, coil spring(s) and necessary mounting hardware in one kit
- Restores factory ride height where applicable
- Helps keep the air suspension light off where applicable
- Passive suspension with fixed compression, rebound and ride height
Quick facts
- Part: Monroe Shocks & Struts 90004C air spring to coil spring conversion kit
- Fits: 2003-2011 Ford Crown Victoria and other vehicles
- Position: Rear
- Condition: New
A rear end that sits low, or rear air springs that look cracked or leak, can mean the air system needs attention. Before converting, look the rear springs over with the engine off, because the compressor, lines or height sensor can also be behind a low rear.
Fits
The vehicles it fits include the 2003-2011 Ford Crown Victoria, the 2003-2011 Lincoln Town Car and the 2003-2011 Mercury Grand Marquis. If your car is not one of these, look up its year and model in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Rear
- Quantity per vehicle: 1
Build and materials
- Type: air spring to coil spring conversion kit
- Suspension: passive
- Adjustable compression, rebound and ride height: no
- Mounting hardware: included
- Condition: New
- Country of origin: Vietnam
In the box
One application-tuned shock/strut, coil spring(s) and mounting hardware. Strut mounts are not included. This listing holds one kit, and the vehicle takes one.
Installation notes
- Detailed instructions come with the kit for a bolt-on installation.
Interchange: 2-30-540000 · 30-540000 · 30-540000-HD
C2615 · 65993C
This part cross-references / interchanges with the following part numbers:
C2615, 90004C, 2-30-540000, 30-540000, 30-540000-HD, 65993C
Frequently Asked Questions
Is this Monroe 90004C conversion kit right for the 2003-2011 Ford Crown Victoria?
Yes. Monroe Shocks & Struts 90004C fits the 2003-2011 Ford Crown Victoria and the 2003-2011 Lincoln Town Car; for any other car, look up its year and model in the "Vehicles it fits" section.
Does the Monroe 90004C air spring conversion kit include strut mounts?
No. The kit holds an application-tuned shock/strut, coil spring(s) and mounting hardware, but strut mounts are not included.
Can ride height or damping be adjusted on this conversion kit?
No. Compression, rebound and ride height are not adjustable, and the suspension is passive.
Do instructions come with this air spring to coil spring conversion kit?
Yes. Monroe 90004C comes with detailed instructions for a bolt-on installation.
Does this kit cross to number 30-540000-HD?
Yes. 30-540000-HD is one of the numbers Monroe Shocks & Struts 90004C replaces, along with 30-540000 and C2615.
