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Stabilus 4B-337255 Hatch Lift Support
Stabilus 4B-337255 Gas Spring for Infiniti QX30
Stabilus 4B-337255 is a gas spring built to match the specified lift support application for select Infiniti QX30 models. With a 540 N (121 lb) force rating, 21.555 in extended length, and 13.484 in compressed length, it is sized for controlled opening and closing action where consistent support is required.
- Brand: Stabilus
- Part number: 4B-337255
- Force rating: 540 N / 121 lb
- Extended length: 21.555 in (547.5 mm)
- Compressed length: 13.484 in (342.5 mm)
- Rod diameter: 0.315 in (8 mm)
- Tube diameter: 0.709 in (18 mm)
- Rod and tube connections: plastic socket
- Rod end attachment diameter: 0.394 in (10 mm)
- Tube end attachment diameter: 0.394 in (10 mm)
Fitment
Compatible with 2017-2019 Infiniti QX30, N/A.
This part cross-references Nissan OE numbers 90450-5DA0A and 90451-5DA0A for the same application.
Product Details
Stabilus 4B-337255 is specified for vehicles that need a gas-charged support with measured extension, compression, and end fitting dimensions. The plastic socket rod and tube connections, along with the listed attachment diameters, make it important to verify the original unit’s dimensions before installation. For Infiniti QX30 owners searching for a lift support, hatch support, or gas strut replacement, this part number provides a direct reference point for the correct application.
Common Issues This Part Can Address
- Weak or slow-opening lift support
- Hatch, hood, or panel that no longer stays open
- Uneven or inconsistent support force
- Original gas strut with worn seals or reduced pressure
- Noise or binding during opening and closing
Installation Notes
Confirm the compressed length, extended length, force rating, and socket-style end fittings against the removed part before installation. Match the rod and tube connection style to the vehicle’s original mounting points on the 2017-2019 Infiniti QX30. If the existing support is still under load, support the panel securely before removal and replacement.
Quality Assurance
Stabilus is a recognized supplier of gas springs and lift supports used in automotive applications. Part number 4B-337255 is built to the listed dimensional and force specifications for the stated Infiniti QX30 fitment.
| Brand | Stabilus |
|---|---|
| Part Number | 4B-337255 |
| Y | |
| Y | |
| Body | 0.709 |
| Compressed Length | 13.484 |
| Compressed Length | 342.5 |
| Extended Length | 21.555 |
| Extended Length | 547.5 |
| Force (N) | 540 |
| Force Lbs | 121 |
| Hardware Kit | NO |
| Rod Connection | PLASTIC SOCKET |
| Rod Dia (IN) | 0.315 |
| Rod Diameter | 8 |
| Rod End Attachment Dia (IN) | 0.394 |
| Rod End Attachment Dia (MM) | 10 |
| Shaft | 0.315 |
| Shaft Connection | PLASTIC SOCKET |
| Tube Connection | PLASTIC SOCKET |
| Tube Dia (IN) | 0.709 |
| Tube Diameter | 18 |
| Tube End Attach Dia (IN) | 0.394 |
| Tube End Attach Dia (mm) | 10 |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019 | INFINITI | QX30 | N/A | |
| 2018 | INFINITI | QX30 | N/A | |
| 2017 | INFINITI | QX30 | 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.