Arnott SK-4208 Suspension Strut and Coil Spring Assembly - Rear Right

Brand Arnott SK-4208
Position Rear Right
10527 No
10528 No
10530 Passive
Compressed Length 395
Travel Length 145
Mounting Hardware Included Yes
Internal Construction Type Twin-tube
Grade Type Standard
Housing Material Steel
Extended Length 540
Adjustable No
Lower Mount Type Loop/eyelet
Upper Mount Type Stud
Boot Included Yes
Gas Charged Yes
Body Diameter 50
Adjustable Damping No
Adjustable Rebound No
Progressive Spring Rate No
Coil Spring Included Yes
Dust Shield Included Yes
Bladder(s) Included No
Bladder Heavy Duty Crimping Rings Included No
Bladder Sleeve(s) Included No
Air Adjustable No
Air Bladder No
Air Bladder Material No
Air Ride Suspension No
Bearing Plate Included Yes
Body End Measuring Point Center eye
Fits Ford and Lincoln · 8 vehicles

Passive design. Delivers OE-style ride behavior without external vehicle commands.

Complete assembly. Includes coil spring, boot, dust shield, and isolators for service replacement.

Twin-tube construction. Steel housing and hydraulic damping support consistent suspension control.

Cross-references JL1Z18125A and JL1Z18125H for the same application. See all 2.

$314.44Free shipping
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Step 2 — Quantity
Suspension Strut and Coil Spring Assemblys are typically replaced in pairs, axle by axle.
Order total $314.44
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

Arnott SK-4208 is a passive suspension strut and coil spring assembly for the rear right side of select full-size SUVs. It is engineered to deliver OE-style stability, handling, control, and comfort without external vehicle commands.

Compatible with 2018-2021 Ford Expedition and 2018-2021 Lincoln Navigator applications with Continuously Controlled Damping (CCD), this assembly is built as a new replacement with integrated spring and damping components.

Key Features

  • Passive strut design for OE-style ride behavior
  • Twin-tube construction with hydraulic internal damping
  • Steel housing with gas-charged operation
  • Coil spring, boot, dust shield, and isolators included
  • Linear spring rate and non-adjustable damping
  • Part number SK-4208 for application matching

Detailed Description

Arnott SK-4208 is a rear right suspension strut and coil spring assembly developed for the 2018-2021 Ford Expedition and 2018-2021 Lincoln Navigator with CCD. The passive design uses tested internal settings to replicate original OE performance, making it a direct replacement choice for restoring factory ride characteristics. The assembly includes a twin-tube steel body, hydraulic damper, gas charge, and integrated spring components for a complete suspension service solution. Arnott SK-4208 is also referenced by part numbers JL1Z18125A and JL1Z18125H for the same application.

Common Issues It May Address

  • Rear suspension sag or uneven ride height
  • Excessive bounce, harshness, or reduced damping control
  • Noisy or worn strut components
  • Loss of factory ride quality in CCD-equipped suspension systems

Installation Notes

Fits 2018-2021 Ford Expedition, rear right, with Continuously Controlled Damping (CCD). Fits 2018-2021 Lincoln Navigator, rear right, with Continuously Controlled Damping (CCD). Verify the vehicle's suspension configuration before ordering. Arnott recommends replacing these struts in pairs.

Quality Assurance

Arnott engineers test internal strut settings to match OE performance targets for this application. The SK-4208 is a new part built with standard-grade materials and a passive design intended to restore original ride behavior.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2021FordExpeditionRear Rightw/Continuously Controlled Damping (CCD)
2021LincolnNavigatorRear Rightw/Continuously Controlled Damping (CCD)
2020FordExpeditionRear Rightw/Continuously Controlled Damping (CCD)
2020LincolnNavigatorRear Rightw/Continuously Controlled Damping (CCD)
2019FordExpeditionRear Rightw/Continuously Controlled Damping (CCD)
2019LincolnNavigatorRear Rightw/Continuously Controlled Damping (CCD)
2018FordExpeditionRear Rightw/Continuously Controlled Damping (CCD)
2018LincolnNavigatorRear Rightw/Continuously Controlled Damping (CCD)
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
JL1Z18125AJL1Z18125H