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StrongArm 4120 Trunk Lid Lift Support
Trunk Lid Lift Support for GM Applications
StrongArm 4120 is a specific-fit trunk lid lift support engineered for select Chevrolet applications. It provides pressurized assistance for opening and holding the trunk lid or rear compartment glass, with a steel outer cylinder, nylon ball socket ends, and a 147.0 maximum force rating.
Fits 2006-2007 Chevrolet Monte Carlo, N/A. Fits 2000-2005 Chevrolet Impala, N/A, with Spoiler. Fits 2000-2005 Chevrolet Monte Carlo, N/A, with Spoiler. Fits 2000-2001 Chevrolet Lumina, N/A, with Spoiler.
Key Features
- StrongArm part number 4120
- Specific-fit trunk lid lift support for listed Chevrolet models
- Compressed length: 7.94 in.; extended length: 11.06 in.; stroke length: 3.12 in.
- Steel outer cylinder with black finish
- Nylon ball socket ends: 10 mm on one end and 8 mm on the other
- Maximum force rating: 147.0
- Rubber and Teflon materials used in the support assembly
Product Details
StrongArm 4120 is a pressurized cylinder built to support trunk lids and rear compartment openings in the Chevrolet Monte Carlo, Impala, and Lumina applications listed above. The specific-fit design helps ensure correct mounting and operating geometry, while the steel cylinder and low-friction internal materials support smooth movement during opening and closing. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Problems This Part Can Address
- Trunk lid that drops instead of staying open
- Weak or inconsistent lift assistance
- Slow, uneven, or rough opening action
- Difficulty holding the trunk lid in the raised position
- Worn support causing reduced rear compartment access
Installation Notes
Verify the vehicle application before ordering, since this support is specific to the listed Chevrolet models and spoiler-equipped configurations. Inspect the mounting points and ball studs for wear before installation, and compare the compressed and extended lengths to the original support to confirm proper fit. For best results, replace lift supports in pairs when the opposite side is also worn.
Quality Assurance
StrongArm states that each lift support is custom engineered and manufactured beyond industry standards to deliver smoother operation and longer service life. The 4120 is built to meet the demands of trunk lid support on the specified Chevrolet Monte Carlo, Impala, and Lumina applications.
| Brand | StrongArm |
|---|---|
| Part Number | 4120 |
| Compressed Length | 7.94 |
| Cylinder Outside Diameter | 19.0 |
| End 1 Type | Ball Socket (Nylon) 10mm |
| End 2 Type | Ball Socket (Nylon) 8mm |
| Extended Length | 11.06 |
| Inner Shaft Diameter | 8.0 |
| Internal Rebound Spring | No |
| Materials | Rubber |
| Materials | Teflon |
| Maximum Force | 147.0 |
| Outer Cylinder Color | Black |
| Outer Cylinder Material | Steel |
| Stroke Length | 3.12 |
| Universal Or Specific Fit | Specific |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Monte Carlo | 3.5L | V6 | N/A | |
| 2006 | Chevrolet | Monte Carlo | 3.5L | V6 | N/A | |
| 2005 | Chevrolet | Impala | N/A | with Spoiler | ||
| 2005 | Chevrolet | Monte Carlo | N/A | with Spoiler | ||
| 2004 | Chevrolet | Impala | N/A | with Spoiler | ||
| 2004 | Chevrolet | Monte Carlo | N/A | with Spoiler | ||
| 2003 | Chevrolet | Impala | N/A | with Spoiler | ||
| 2003 | Chevrolet | Monte Carlo | N/A | with Spoiler | ||
| 2002 | Chevrolet | Impala | N/A | with Spoiler | ||
| 2002 | Chevrolet | Monte Carlo | N/A | with Spoiler | ||
| 2001 | Chevrolet | Impala | N/A | with Spoiler | ||
| 2001 | Chevrolet | Lumina | N/A | with Spoiler | ||
| 2001 | Chevrolet | Monte Carlo | N/A | with Spoiler | ||
| 2000 | Chevrolet | Impala | N/A | with Spoiler | ||
| 2000 | Chevrolet | Lumina | N/A | with Spoiler | ||
| 2000 | Chevrolet | Monte Carlo | N/A | with Spoiler |
* 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.