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Stabilus 3B-991172 Hatch Lift Support - LeftOE Quality 60-Day Returns
Part #: 3B-991172

Stabilus 3B-991172 Hatch Lift Support - Left

Left
8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lincoln, MKX
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OE-Style Liftgate Support for Lincoln

This Stabilus gas spring is built for left-side liftgate support on select Lincoln SUVs. With a 730 N (164 lb) force rating, 661 mm extended length, and plastic socket connections, it matches the dimensions needed for controlled liftgate operation on the Lincoln Nautilus and Lincoln MKX.

  • Brand: Stabilus
  • Part number: 3B-991172
  • Force rating: 730 N / 164 lb
  • Extended length: 661 mm (26.024 in)
  • Compressed length: 485 mm (19.094 in)
  • Rod diameter: 10 mm (0.394 in)
  • Tube diameter: 22 mm (0.866 in)
  • Rod connection: plastic socket
  • Tube connection: plastic socket
  • Left-side application

Fitment Details

Fits 2019-2023 Lincoln Nautilus, left, with temperature compensating valve for increased hold force in cold weather. Fits 2016-2018 Lincoln MKX, left, Exc. Power Liftgate. This Stabilus 3B-991172 is also cross-referenced to Bosch 7447 for the same application.

Product Description

Stabilus 3B-991172 is a gas-charged liftgate support engineered to control opening and closing effort on the left side of the rear liftgate. The measured body and shaft dimensions, along with the 730 N force output, support consistent liftgate movement and proper hold-open function on the specified Lincoln applications. For Lincoln Nautilus and Lincoln MKX owners, this part number 3B-991172 provides the correct OE-style dimensions and attachment style for direct replacement service.

What It Helps Address

  • Liftgate that will not stay open
  • Rear hatch that drops too quickly
  • Uneven or weak liftgate support on the left side
  • Cold-weather loss of hold force on equipped Lincoln Nautilus models
  • Worn gas strut performance on Lincoln MKX rear liftgate service

Installation Notes

Verify left-side placement before installation and confirm the rod and tube socket ends match the vehicle mounting points. Compare the compressed length, extended length, and force rating to the original support before replacement. Support the liftgate securely during service and inspect the mounting points for wear or damage before snapping the sockets into place.

Quality Assurance

Stabilus is a recognized OE supplier of gas springs and lift supports, and this part is built to match the listed fitment and dimensional specifications for the Lincoln Nautilus and Lincoln MKX applications.

BrandStabilus
Part Number3B-991172
Y
Y
Body0.866
Compressed Length19.094
Compressed Length485
Extended Length26.024
Extended Length661
Force (N)730
Force Lbs164
Hardware KitNO
Rod ConnectionPLASTIC SOCKET
Rod Dia (IN)0.394
Rod Diameter10
Rod End Attachment Dia (IN)0.394
Rod End Attachment Dia (MM)10
Shaft0.394
Shaft ConnectionPLASTIC SOCKET
Tube ConnectionPLASTIC SOCKET
Tube Dia (IN)0.866
Tube Diameter22
Tube End Attach Dia (IN)0.394
Tube End Attach Dia (mm)10

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2023LincolnNautilusLeftWith Temperature Compensating Valve for increased hold force in cold weather.
2022LincolnNautilusLeftWith Temperature Compensating Valve for increased hold force in cold weather.
2021LincolnNautilusLeftWith Temperature Compensating Valve for increased hold force in cold weather.
2020LincolnNautilusLeftWith Temperature Compensating Valve for increased hold force in cold weather.
2019LincolnNautilusLeftWith Temperature Compensating Valve for increased hold force in cold weather.
2018LincolnMKXLeftExc.Power Liftgate
2017LincolnMKXLeftExc.Power Liftgate
2016LincolnMKXLeftExc.Power Liftgate

* 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:

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