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StrongArm 4545 Trunk Lid Lift Support
StrongArm 4545 Trunk Lid Lift Support
Restore controlled trunk lid operation with this StrongArm trunk lid lift support, part number 4545. Built as a specific-fit replacement for select BMW 8 Series models, it helps maintain steady support and smoother opening and closing action for the rear compartment.
Key Features
- Specific-fit trunk lid lift support for select BMW applications
- Extended length: 19.2 in.; compressed length: 11.87 in.
- Stroke length: 7.33 in. for consistent lift travel
- Maximum force rating: 56.0
- Black steel outer cylinder with nylon 10 mm ball socket ends
- Rubber and Teflon materials for operating durability
- No internal rebound spring
Detailed Description
StrongArm 4545 is a pressurized trunk lid lift support engineered for precise fitment and dependable rear lid support. It is built with a steel outer cylinder, nylon ball socket ends, and a 56.0 maximum force rating to help deliver smooth, controlled movement. This part number 4545 is listed for BMW 850Ci, BMW 840Ci, BMW 850CSi, and BMW 850i applications, making it a direct replacement choice for owners servicing the trunk lid on these vehicles.
This part cross-references Monroe Shocks & Struts 510-842 for the same application.
Vehicle Fitment
- Fits 1993-1998 BMW 850Ci, N/A
- Fits 1994-1997 BMW 840Ci, N/A
- Fits 1994-1995 BMW 850CSi, N/A
- Fits 1991-1992 BMW 850i, N/A
Common Problems This Part Helps Address
- Trunk lid that drops too quickly when opened
- Rear lid that will not stay raised
- Weak or inconsistent lift support pressure
- Rough or uneven trunk opening and closing
- Worn ball socket connection at the lift support ends
Installation Notes and Tips
Replace lift supports in pairs to maintain balanced support and consistent operation. Before installation, verify the ball socket size and mounting points match the vehicle’s existing hardware. After installation, cycle the trunk lid several times to confirm smooth movement and secure engagement at both ends.
Quality Assurance
StrongArm lift supports are custom engineered and manufactured beyond industry standards for smoother operation and longer-lasting performance. Part number 4545 is built for specific-fit BMW trunk lid applications and is designed to meet the demands of regular rear compartment use.
| Brand | StrongArm |
|---|---|
| Part Number | 4545 |
| Compressed Length | 11.87 |
| Cylinder Outside Diameter | 19.0 |
| End 1 Type | Ball Socket (Nylon) 10mm |
| End 2 Type | Ball Socket (Nylon) 10mm |
| Extended Length | 19.2 |
| Inner Shaft Diameter | 8.0 |
| Internal Rebound Spring | No |
| Materials | Rubber |
| Materials | Teflon |
| Maximum Force | 56.0 |
| Outer Cylinder Color | Black |
| Outer Cylinder Material | Steel |
| Stroke Length | 7.33 |
| Universal Or Specific Fit | Specific |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1998 | BMW | 850Ci | 5.4L | V12 | N/A | |
| 1997 | BMW | 840Ci | N/A | |||
| 1997 | BMW | 850Ci | N/A | |||
| 1996 | BMW | 840Ci | N/A | |||
| 1996 | BMW | 850Ci | N/A | |||
| 1995 | BMW | 840Ci | N/A | |||
| 1995 | BMW | 850Ci | N/A | |||
| 1995 | BMW | 850CSi | N/A | |||
| 1994 | BMW | 840Ci | N/A | |||
| 1994 | BMW | 850Ci | N/A | |||
| 1994 | BMW | 850CSi | N/A | |||
| 1993 | BMW | 850Ci | N/A | |||
| 1992 | BMW | 850i | N/A | |||
| 1991 | BMW | 850i | N/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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.