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Part #: 6684

StrongArm 6684 Hatch Lift Support

⚙️ 4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lincoln, MKX
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StrongArm Gas Strut for Lincoln MKX

The StrongArm 6684 gas strut is engineered specifically for the Lincoln MKX, providing reliable support and smooth operation. Designed with precision, this gas strut ensures optimal performance and durability for your vehicle's lift or support needs.

  • Compressed length: 14.81 inches
  • Extended length: 22.06 inches
  • Stroke length: 7.25 inches
  • Cylinder outside diameter: 22.0 mm
  • Inner shaft diameter: 10.0 mm
  • Outer cylinder made of durable black steel
  • Ball socket (nylon) 10mm on one end and angled 16-degree ball socket (nylon) 16mm on the other
  • Materials include rubber and Teflon components for smooth operation
  • Maximum force rating of 166 Newtons

Product Details and Specifications

The StrongArm 6684 gas strut is a specific fit component designed for the Lincoln MKX. Its steel outer cylinder with a black finish offers corrosion resistance and strength. The gas strut features a 7.25-inch stroke length, allowing for controlled extension and compression. The ball socket ends, one straight 10mm nylon and one angled 16-degree 16mm nylon, provide secure mounting points that reduce wear and noise. The internal design excludes a rebound spring, focusing on consistent force delivery up to 166 Newtons. Rubber and Teflon materials are incorporated to enhance sealing and reduce friction, contributing to the strut's longevity and smooth operation.

Applications and Problem Solving

  • Supports liftgate or hood operation on Lincoln MKX models
  • Replaces worn or weak gas struts causing sagging or difficulty in opening
  • Eliminates rattling or noise from faulty ball socket connections
  • Restores proper lift force for safe and controlled opening
  • Prevents sudden closure or failure of supported panels

Installation Notes and Tips

  • Ensure compatibility with Lincoln MKX before installation
  • Use appropriate tools to remove and install ball socket ends without damage
  • Check mounting points for wear or corrosion prior to installation
  • Do not compress the gas strut manually to avoid damage
  • Verify smooth operation after installation by cycling the supported panel

Quality Assurance and Warranty

The StrongArm 6684 gas strut is manufactured to meet OEM specifications for the Lincoln MKX. Constructed with high-quality steel and engineered components, it offers reliable performance under normal operating conditions. While no specific warranty information is provided, StrongArm products typically adhere to industry standards for durability and fitment accuracy.

BrandStrongArm
Part Number6684
Compressed Length14.81
Cylinder Outside Diameter22.0
End 1 TypeBall Socket (Nylon) 10mm
End 2 TypeBall Socket (Nylon Angled) 16 Deg.
Extended Length22.06
Inner Shaft Diameter10.0
Internal Rebound SpringNo
MaterialsRubber
MaterialsTeflon
Maximum Force166.0
Outer Cylinder ColorBlack
Outer Cylinder MaterialSteel
Stroke Length7.25
Universal Or Specific FitSpecific

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
2010LincolnMKXN/APower liftgate functionality included
2009LincolnMKXN/APower liftgate functionality included
2008LincolnMKXN/APower liftgate functionality included
2007LincolnMKXN/APower liftgate functionality included

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

66847A1Z 78406A10-B7A1Z 78406A11-B819-6852900413C6684C96684SG204066

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.