Arnott A-2148 Air Suspension Spring - Rear
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Arnott A-2148 Air Suspension Spring - Rear

Brand Arnott A-2148
Position Rear
Mounting Hardware Included Yes
Bellows Material Rubber
Grade Type Standard
Bellows Color Black
Bellows Material Thickness 2.59
9719 Sleeve style
Bearing Plate Included No
Boot Included No
Lower Mount Type Base cup
Upper Mount Type Stud
Product line NEW
Fits Ford and Lincoln · 11 vehicles

Load-leveling design. Helps maintain a consistent ride height under changing loads.

Rugged construction. Features resin mounts and a multi-ply air sleeve for durability.

Includes seal kit. Comes with new seals for a cleaner replacement.

Cross-references Ford 3U2Z5580KA, Ford F75Z5A891AA and Lincoln 3U2Z5580KA for the same application. See all 4.

$154.52Free shipping
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Rear Air Spring for Expedition and Navigator

Restore rear load-leveling performance with the Arnott A-2148 air suspension spring for the 1997-2002 Ford Expedition and 1998-2002 Lincoln Navigator 4x2. This rear air spring is built with a rubber bellows, high-impact resin upper and lower mounts, and a ContiTech multi-ply air sleeve for dependable suspension support.

Arnott A-2148 is a direct-fit rear air suspension spring for Ford Expedition and Lincoln Navigator models with rear air suspension. It includes a new seal kit and is assembled and tested by Continental for Arnott.

Key Features

  • Fits 1997-2002 Ford Expedition, rear
  • Fits 1998-2002 Lincoln Navigator, rear
  • Rubber bellows with black sleeve-style construction
  • High-impact resin top and bottom mounts
  • ContiTech multi-ply air sleeve
  • New seal kit included
  • Upper mount type: stud; lower mount type: base cup
  • Mounting hardware included: yes

Detailed Description

The Arnott A-2148 rear air suspension spring is engineered for vehicles that rely on rear load-leveling support. It is a practical replacement for worn or leaking air springs on the Ford Expedition and Lincoln Navigator, helping maintain rear ride height and suspension response under changing cargo or passenger loads. The bladder is tested to a burst pressure above 480 PSI, providing a strong margin over normal operating pressure. This part cross-references Ford 3U2Z5580KA and F75Z5A891AA for the same application.

What It Helps Solve

  • Rear end sag from a leaking or weakened air spring
  • Uneven ride height at the back of the vehicle
  • Air loss that triggers suspension warning symptoms
  • Reduced load-leveling performance when carrying cargo
  • Ride quality issues caused by aging rubber bellows

Installation Notes and Tips

Confirm rear fitment before installation on 1997-2002 Ford Expedition and 1998-2002 Lincoln Navigator 4x2 applications. Arnott recommends replacing the dryer when changing air springs, since moisture in the system can damage the compressor. Inspect the air lines, fittings, and mounting points for wear before installing the new spring.

Quality Assurance

Arnott backs this aftermarket air spring with a Limited Lifetime Warranty. The A-2148 is assembled and tested for Arnott by Continental and uses a seal kit for a more complete service replacement.

Related reading

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2002FordExpeditionRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
2002LincolnNavigatorRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
2001FordExpeditionRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
2001LincolnNavigatorRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
2000FordExpeditionRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
2000LincolnNavigatorRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
1999FordExpeditionRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
1999LincolnNavigatorRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
1998FordExpeditionRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
1998LincolnNavigatorRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
1997FordExpeditionRWDRearAir Suspension Spring with O-Ring Seal Kit; NEW
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Ford — 3U2Z5580KAFord — F75Z5A891AALincoln — 3U2Z5580KALincoln — F75Z5A891AA