HomeBody > Trunk Lid and CompartmentFCS 84101 Trunk Lid Lift Support - Rear
Part #: 84101

FCS 84101 Trunk Lid Lift Support - Rear

FCS, Rear
15 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
FCS, Rear
Fitment: Buick, Cadillac, and Oldsmobile, Riviera, Eldorado, and Toronado
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Rear Trunk Lid Lift Support for Classic GM Coupes

FCS 84101 is a rear trunk lid lift support built for select 1979-1983 Buick Riviera, Cadillac Eldorado, and Oldsmobile Toronado applications. With a compressed length of 5.71 inches, extended length of 8.27 inches, and 2.56 inches of stroke, it is sized to match the rear trunk support geometry used on these vehicles.

Key Features

  • Part number 84101 for direct reference during ordering and service lookup
  • Rear trunk lid lift support for body and compartment applications
  • Compressed length: 5.71 inches
  • Extended length: 8.27 inches
  • Stroke length: 2.56 inches
  • Compatible With 1979-1983 Buick Riviera, rear
  • Compatible With 1979-1983 Cadillac Eldorado, rear
  • Compatible With 1979-1983 Oldsmobile Toronado, rear

Product Details

FCS 84101 is a trunk lid lift support for rear-mounted applications on 1979-1983 Buick Riviera, Cadillac Eldorado, and Oldsmobile Toronado models. The listed compressed length, extended length, and stroke length provide the dimensional reference needed when matching a replacement support to the original trunk lid hardware. FCS is the brand line identified for this part, and 84101 is the catalog number to use when verifying the correct rear trunk support for these classic GM vehicles.

Common Problems This Part Addresses

  • Trunk lid that drops instead of staying open
  • Weak or worn lift support with reduced holding force
  • Slow or uneven trunk lid movement
  • Difficulty accessing the trunk because the lid will not remain raised
  • Replacement need after gas-charged support wear on rear compartment hardware

Installation Notes and Tips

Confirm the vehicle year, make, model, and rear position before installation. Compare the existing support’s compressed length, extended length, and stroke length to FCS 84101 to verify dimensional match. Inspect the trunk lid mounting points and surrounding brackets for wear or damage before replacing the support, and transfer the part carefully to avoid stressing the rear compartment hinges or mounts.

Quality Assurance

Use the part number 84101 and the vehicle fitment details to confirm application before purchase. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

BrandFCS
Part Number84101
PositionFCS, Rear
Compressed Length5.71
Extended Length8.27
Stroke Length2.56

This part fits 15 vehicles. Search below:

YearMakeModelPositionNotes
1983BuickRivieraRearFCS
1983CadillacEldoradoRearFCS
1983OldsmobileToronadoRearFCS
1982BuickRivieraRearFCS
1982CadillacEldoradoRearFCS
1982OldsmobileToronadoRearFCS
1981BuickRivieraRearFCS
1981CadillacEldoradoRearFCS
1981OldsmobileToronadoRearFCS
1980BuickRivieraRearFCS
1980CadillacEldoradoRearFCS
1980OldsmobileToronadoRearFCS
1979BuickRivieraRearFCS
1979CadillacEldoradoRearFCS
1979OldsmobileToronadoRearFCS

* 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.