HomeBody > Trunk Lid and CompartmentStrongArm 4025 Trunk Lid Lift Support
Part #: 4025

StrongArm 4025 Trunk Lid Lift Support

22 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: BMW, 740i, 740iL, 750iL, 735i, and 735iL
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Trunk Lid Lift Support for BMW Applications

Restore steady trunk lid operation with this StrongArm trunk lid lift support, part number 4025. It is a specific-fit gas strut engineered for controlled opening and dependable rear compartment support on select BMW 7 Series models.

  • Specific-fit trunk lid lift support for BMW rear compartment applications
  • Compressed length: 6.7 in.; extended length: 10.0 in.; stroke length: 3.3 in.
  • Steel outer cylinder with black finish for durable service
  • Blade ends with .330 in. hole on both sides for direct mounting style
  • Maximum force rating: 118.0
  • Internal components use rubber and Teflon materials for smoother movement

Built for Controlled Trunk Lid Support

StrongArm 4025 is a pressurized lift support made for trunk lid and compartment use. It is custom engineered and manufactured beyond industry standards to deliver smoother operation and longer-lasting performance. This part number 4025 cross-references AMS Automotive 4025 for the same application. It is a direct-fit option for BMW 735i, BMW 735iL, BMW 740i, BMW 740iL, and BMW 750iL rear lid support service.

What It Helps Fix

  • Trunk lid that drops instead of staying open
  • Weak or slow rear lid lift action
  • Uneven or inconsistent trunk opening effort
  • Noise or binding from worn lift support hardware
  • Loss of controlled support at the rear compartment

Installation Notes

Replace lift supports in pairs to maintain balanced, reliable trunk lid support. Confirm end style, compressed length, extended length, and stroke length before installation. This StrongArm 4025 is a specific-fit part for select BMW applications, including Fits 1987-1992 BMW 735i, N/A; Fits 1988-1992 BMW 735iL, N/A; Fits 1993-1994 BMW 740i, N/A; Fits 1993-1994 BMW 740iL, N/A; and Fits 1988-1994 BMW 750iL, N/A.

Quality Assurance

StrongArm manufactures each lift support to meet demanding application requirements for consistent operation and long service life. Part number 4025 is built as a specific-fit replacement for select BMW trunk lid support applications.

BrandStrongArm
Part Number4025
Compressed Length6.7
Cylinder Outside Diameter19.0
End 1 TypeBlade (.330 dia. Hole)
End 2 TypeBlade (.330 dia. Hole)
Extended Length10.0
Inner Shaft Diameter8.0
Internal Rebound SpringNo
MaterialsRubber
MaterialsTeflon
Maximum Force118.0
Outer Cylinder ColorBlack
Outer Cylinder MaterialSteel
Stroke Length3.3
Universal Or Specific FitSpecific

This part fits 22 vehicles. Search below:

YearMakeModelPositionNotes
1994BMW740iN/A
1994BMW740iLN/A
1994BMW750iLN/A
1993BMW740iN/A
1993BMW740iLN/A
1993BMW750iLN/A
1992BMW735iN/A
1992BMW735iLN/A
1992BMW750iLN/A
1991BMW735iN/A
1991BMW735iLN/A
1991BMW750iLN/A
1990BMW735iN/A
1990BMW735iLN/A
1990BMW750iLN/A
1989BMW735iN/A
1989BMW735iLN/A
1989BMW750iLN/A
1988BMW735iN/A
1988BMW735iLN/A
1988BMW750iLN/A
1987BMW735iN/A

* 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:

4025510-15051241908431901828D95703F4025SG402012

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