FCS Q4020 Air Suspension Spring - Rear

FCS Q4020 Rear Air Suspension Spring for Ram 1500

The FCS Q4020 is a rear air suspension spring for select Ram 1500 models with factory air suspension. It is built for 2013-2018 Ram 1500 rear applications with DS and air suspension notes, making it a direct-fit option for common rear suspension service needs.

Key Features

• Rear air suspension spring for select Ram 1500 trucks
• Fits 2013-2018 Ram 1500, rear, DS with air suspension
• FCS Q4020 application-specific fitment
• Supports restoration of rear ride height and suspension function
• Brand line: FCS suspension component for vehicle-specific replacement use

Detailed Description

FCS Q4020 is an air suspension spring engineered for the rear suspension on 2013-2018 Ram 1500 models equipped with DS and air suspension. If your Ram 1500 is showing uneven rear stance, loss of air support, or suspension-related ride issues, this part provides a direct replacement path for the original rear air spring assembly. The FCS Q4020 is listed for the Ram 1500 rear position only and should be matched to the vehicle’s air suspension configuration before ordering.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It May Address

• Rear end sagging or uneven ride height
• Air suspension leak-related loss of support
• Harsh or inconsistent rear ride quality
• Suspension warning symptoms tied to rear air spring wear
• Need for a direct replacement on a Ram 1500 rear air suspension system

Installation Notes and Tips

Verify the vehicle is a 2013-2018 Ram 1500 with DS and rear air suspension before installation. Confirm the rear position and compare the original spring configuration to the FCS Q4020 prior to service. After installation, inspect the system for leaks and verify proper ride height and suspension operation.

Quality Assurance

FCS suspension components are built for vehicle-specific replacement applications. Confirm fitment using the part number Q4020 and the vehicle’s suspension configuration before installation.