Westar CK-7840 Air Spring to Coil Spring Conversion Kit - Front

Brand Westar CK-7840
Position Front
Bullet 1 All product are new, we do not sell re-manufactured units
Bullet 2 Designed to be a more reliable alternative to the oem air suspens
Bullet 3 Designed to be a significant cost savings over the oem style air
Fits Ford and Mercury · 21 vehicles

New components only. Supplied as a new part, not a remanufactured unit.

Air-to-coil conversion. Replaces the original air spring setup with a simpler spring-based design.

Quality-controlled manufacturing. Built to strict ISO, QS, and TS standards.

Cross-references Suncore 135F-30-F and Suncore 150G-14-R-RES for the same application. See all 2.

$201.86Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $201.86
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Air Suspension Conversion Kit Overview

Westar CK-7840 is an air spring to coil spring conversion kit for vehicles originally equipped with front air suspension. It provides a straightforward path away from aging air components while keeping the suspension serviceable with new parts. Fits 1995-2001 Ford Explorer, front; Fits 1997-2001 Mercury Mountaineer, front; Fits 2001-2003 Ford Explorer Sport Trac, front.

Key Features

  • New components only; no remanufactured units.
  • Converts air suspension to a coil spring setup.
  • Built as a more reliable alternative to the original air suspension system.
  • Offers a lower-cost replacement path versus OEM-style air suspension parts.
  • Westar CK-7840 is manufactured to strict industry standards, including ISO, QS, and TS requirements.

Detailed Description

Westar CK-7840 is intended for front suspension applications on the Ford Explorer, Mercury Mountaineer, and Ford Explorer Sport Trac listed in the fitment data. This air spring to coil spring conversion kit replaces the complexity of the original air suspension with a conventional spring-based solution, making it a practical choice when the factory air system is no longer performing as expected. The CK-7840 part number is also referenced by Suncore 135F-30-F and 150G-14-R-RES for the same application.

Westar focuses on new replacement components and rebuild parts for air suspension service needs. CK-7840 follows that approach with parts manufactured to controlled standards for consistent fit and function. If you are searching for a Ford Explorer front air suspension conversion kit, Mercury Mountaineer front conversion kit, or Ford Explorer Sport Trac front coil spring conversion kit, this part number is the relevant match.

What It Is Used For

  • Replacing worn or failing front air suspension components.
  • Eliminating recurring air spring and compressor-related issues.
  • Converting the suspension to a simpler coil spring arrangement.
  • Reducing repair cost compared with restoring the original air suspension system.
  • Restoring normal suspension serviceability on the listed vehicles.

Installation Notes and Tips

Verify the vehicle’s original suspension configuration before ordering, since this kit is specific to front applications listed in the fitment data. Compare the existing suspension layout and part number CK-7840 against the vehicle’s current setup to confirm the correct application. Professional installation is recommended for suspension work, and all related components should be inspected for wear during service.

Quality Assurance

Westar states that its factories use top-quality components and manufacture to strict industry standards, including ISO, QS, and TS standards. CK-7840 is supplied as a new part, not a remanufactured unit.

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeTransmissionPositionNotes
2003FordExplorer Sport Trac——Front—
2002FordExplorer Sport Trac——Front—
2001FordExplorer——Front—
2001FordExplorer Sport Trac——Front—
2001MercuryMountaineer——Front—
2000FordExplorer——Front—
2000MercuryMountaineer——Front—
1999FordExplorer4WD—Front—
1999FordExplorerAWD—Front—
1999FordExplorerRWDAutomaticFront—
1999MercuryMountaineer——Front—
1998FordExplorerRWDAutomaticFront—
1998FordExplorer4WD—Front—
1998MercuryMountaineer——Front—
1997FordExplorerRWDAutomaticFront—
1997FordExplorer4WD—Front—
1997MercuryMountaineer——Front—
1996FordExplorerRWDAutomaticFront—
1996FordExplorer4WD—Front—
1995FordExplorerRWDAutomaticFront—
1995FordExplorer4WD—Front—
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Suncore — 135F-30-FSuncore — 150G-14-R-RES