Product Details
This Whiteline Rear Differential Mount Bushing Kit fits the 2011-2016 BMW 550i. The kit contains 3 bushings, 3 tubes, and 3 washers. Placement: rear. Whiteline part number: KDT990.
The differential is hung from the chassis on bushings that are soft for comfort. Under hard acceleration and braking they let it rock, so power reaches the wheels a moment late and the rear end can feel loose. A firmer bushing holds the differential more steadily, which sharpens throttle response. Polyurethane resists deflection far better than the soft rubber it replaces.
Installation is rated difficult, with about 3 hours of work listed. It does not require a wheel alignment.
Features
- Install guide: An install guide comes in the box.
- Bushing compound: A synthetic elastomer compound resists oil, grease, ozone, and weathering.
- Self-lubricating: Internal grease reservoirs keep the bushing lubricated as it works.
Specifications
| Part Number | KDT990 |
| Part Name | Differential Mount Bushings |
| Vehicle | 2011-2016 BMW 550i |
| Chassis Code | F10 |
| Color | Black |
| Durometer | 94 |
| Grade Type | Performance |
| Installation Difficulty | Difficult |
| Installation Time (hrs) | 3 |
| Kit Contents | 3 Bushings, 3 Tubes, 3 Washers |
| Material | Polyurethane |
| Vehicle Placement | Rear |
| Wheel Alignment Required | No |
| Notes | - |
Fitment for 550i differential mount bushings
Fits the 2011-2016 BMW 550i. Each model year is listed below.


