HomeBody > Trunk Lid and CompartmentStrongArm 4347 Trunk Lid Lift Support
Part #: 4347

StrongArm 4347 Trunk Lid Lift Support

28 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: BMW, 325i, 318i, 325is, 325iX, M3, and 325e
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StrongArm 4347 Trunk Lid Lift Support

Restore smooth, controlled trunk lid operation with this StrongArm trunk lid lift support. StrongArm 4347 is a specific-fit gas strut engineered for consistent support and reliable opening action on select BMW applications, including BMW 325i, 318i, 325is, 325iX, M3, and 325e models.

Key Features

  • Specific-fit trunk lid lift support for select BMW vehicles
  • Extended length: 19.69 in.; compressed length: 12.09 in.
  • Stroke length: 7.6 in. for controlled lift travel
  • Maximum force rating: 38.0
  • Steel outer cylinder with black finish
  • Blade ends with .340 in. hole on both ends
  • Rubber and Teflon materials for smooth operation and wear resistance
  • StrongArm 4347 cross-references AMS Automotive 4347 for the same application

Detailed Description

StrongArm 4347 is a trunk lid lift support built to replace worn gas struts that no longer hold the rear lid securely. It uses a pressurized cylinder design to provide steady lift assistance and controlled closing behavior. With a specific fit and application-matched dimensions, this part is engineered for BMW trunk lid service where consistent support and smooth movement matter. This part number, 4347, is used across select BMW 325i, 318i, 325is, 325iX, M3, and 325e applications from 1984 through 1993.

What It Helps Fix

  • Trunk lid that drops unexpectedly
  • Weak or inconsistent lift assistance
  • Hard-to-open rear lid due to worn gas pressure
  • Excessive effort needed to raise the trunk lid
  • Reduced support from aging OEM-style lift struts

Installation Notes and Tips

Verify the compressed length, extended length, stroke length, and blade-end configuration before installation. Confirm the vehicle application against the fitment list for your BMW 325i, 318i, 325is, 325iX, M3, or 325e. For best results, replace lift supports in pairs so the trunk lid opens and closes with balanced support. Check mounting points for wear or damage before installing StrongArm 4347.

Quality Assurance

StrongArm custom engineers its lift supports and manufactures them beyond industry standards to support smoother operation and longer service life. Part number 4347 is built as a specific-fit replacement for the listed BMW applications and cross-references AMS Automotive 4347.

BrandStrongArm
Part Number4347
Compressed Length12.09
Cylinder Outside Diameter19.0
End 1 TypeBlade (.340 dia. Hole)
End 2 TypeBlade (.340 dia. Hole)
Extended Length19.69
Inner Shaft Diameter8.0
Internal Rebound SpringNo
MaterialsRubber
MaterialsTeflon
Maximum Force38.0
Outer Cylinder ColorBlack
Outer Cylinder MaterialSteel
Stroke Length7.6
Universal Or Specific FitSpecific

This part fits 28 vehicles. Search below:

YearMakeModelBody TypePositionNotes
1993BMW325iN/A
1992BMW318iConvertibleN/A
1992BMW325iN/A
1991BMW318iN/A
1991BMW325iN/A
1991BMW325isN/A
1991BMW325iXN/A
1991BMWM3N/A
1990BMW325iN/A
1990BMW325isN/A
1990BMW325iXN/A
1990BMWM3N/A
1989BMW325iN/A
1989BMW325isN/A
1989BMW325iXN/A
1989BMWM3N/A
1988BMW325iN/A
1988BMW325isN/A
1988BMW325iXN/A
1988BMWM3N/A
1987BMW325eN/A
1987BMW325iN/A
1987BMW325isN/A
1986BMW325eN/A
1985BMW318iN/A
1985BMW325eN/A
1984BMW318iN/A
1984BMW325eN/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:

4347510-825819-4173D4347D95898SG302004

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