Powerflex Poly Bushes Pack - Rear Diff Rear Bush - PFR5-4626 - BMW X3 E83 2003-2010
Upgrade the rear differential mount on your BMW X3 E83 with the Powerflex Rear Diff Rear Bush PFR5-4626. This polyurethane rear diff bush is engineered to reduce unwanted movement in the rear differential, sharpen drivetrain response and improve handling stability on road and track. Ideal as a performance upgrade or a durable replacement for ageing rubber bushes, the Powerflex PFR5-4626 helps restore precise steering feel, improve traction and reduce uneven tyre wear on the 2003-2010 BMW X3 E83.
Powerflex poly bushes improve your car’s road holding and chassis performance by controlling the amount of unwanted flex in the suspension and drivetrain, keeping your tyres in better contact with the road for improved safety and performance. Correctly formulated polyurethane can be as good, if not better, at noise, vibration and harshness suppression when compared to rubber, making it a smart upgrade for daily driving and spirited use.
Key features and benefits
- Part number: PFR5-4626
- Vehicle fitment: BMW X3 E83 2003-2010
- Position: Rear differential rear bush - rear diff mount bush
- Diagram reference: 26
- Pack contains: 1 bush
- Sharper handling and improved chassis control
- Reduces rear diff movement for more consistent power delivery
- Helps reduce braking instability and wheel hop
- Prolonged tyre life and improved performance
- Cost-effective, long-lasting polyurethane solution
- Powerflex Lifetime Warranty for peace of mind
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Why choose Powerflex polyurethane bushings for BMW X3 E83
- Controls flex better than tired OEM rubber bushes to restore precision
- Maintains tyre contact with the road for safer, more predictable handling
- Durable polyurethane construction stands up to heat, oil and road contaminants
- As good or better at NVH control compared to rubber when correctly formulated
- Backed by the Powerflex Lifetime Warranty
Real-world confidence
We use Powerflex bushes on our own cars and customer builds. Feedback is consistently positive, with drivers praising the improved steering response, stability and confidence the PFR5-4626 rear diff bush brings to the BMW X3 E83 platform.
Fitting and support
Professional fitting recommended. Nforcd offers installation in Warwickshire and can supply a full quote. To book or request pricing, contact Sales@nforcd.com. A four-wheel alignment is recommended after installation to maximise tyre life and handling performance.
Choose the Powerflex PFR5-4626 Rear Diff Rear Bush for your BMW X3 E83 2003-2010 and enjoy a durable, performance-focused upgrade that enhances stability, traction and overall driving confidence.

