Westar CK-7841WS Air Spring to Coil Spring Conversion Kit - Rear

Rear Air Spring Conversion for Ford and Lincoln

Westar CK-7841WS is an air spring to coil spring conversion kit for rear suspension service on select Ford, Lincoln, and Mercury full-size sedans. It replaces the OEM air suspension with a coil spring setup for drivers who want a simpler rear suspension solution on applications such as the Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis.

• New components only; Westar does not sell remanufactured units
• Converts rear air suspension to a coil spring arrangement
• Provides a more reliable alternative to the OEM air suspension
• Offers a lower-cost repair path than OEM-style air suspension service
• Built to strict industry standards using quality components

Product Details

Westar CK-7841WS is built for rear suspension conversion on 2003-2011 Ford Crown Victoria, 2003-2011 Lincoln Town Car, 1990-2011 Mercury Grand Marquis, and 2003-2004 Mercury Marauder applications listed below. This kit is aimed at owners replacing aging rear air suspension components with a coil spring conversion that reduces dependence on air springs, compressors, and related electronic controls. This part cross-references Monroe Shocks & Struts (e.g., 90004) for the same application.

Fitment

• Fits 2003-2011 Ford Crown Victoria, rear; includes rear springs & shocks.
• Fits 2003-2011 Lincoln Town Car, rear; includes rear springs & shocks.
• Fits 1990-2011 Mercury Grand Marquis, rear; includes rear springs & shocks.
• Fits 2003-2004 Mercury Marauder, rear; includes rear springs & shocks.

Common Repair Uses

• Rear air suspension sagging or uneven ride height
• Repeated air spring or air bag failures
• Compressor cycling caused by leaking suspension components
• Costly OEM air suspension repairs on older full-size sedans
• Need for a coil spring conversion on rear suspension service

Installation Notes

Install on the rear suspension only for the listed vehicle applications. Verify model year, body style, and existing suspension configuration before ordering. Follow factory service procedures for safe removal of air suspension components and proper installation of the conversion kit.

Quality Assurance

Westar manufactures air suspension components to strict industry standards, including ISO, QS, and TS requirements. CK-7841WS is supplied as a new part and is not remanufactured.