Front Control Arm

Control arms, and their integrated ball joints, are some of the most crucial components on a BMW suspension. The control arms literally control the wheel and suspension as they go through their range of motions. A faulty or worn control arm or ball joint is a very dangerous and potentially life-threatening problem so make sure they are inspected and replaced at regular intervals. For a street-driven car we advise yearly inspection and a full replacement every 3-4 years. For track-driven cars these should be inspected before every event and replaced every two years.

This control arm is an aftermarket OEM alternative part that comes with a 1-year warranty. They use the same designs as the original BMW parts on your car so they meet OEM standards for fitment and operation. We have compared these parts to the Genuine BMW and OEM brands and found few differences. This package is an unbeatable money-saving bundle to restore your E34's precise handling and steering. We also offer all of the OE or OEM brands if you are more comfortable with those levels of quality and performance or are planning to track or autocross your car (the cast components of the aftermarket kit will not be as good as the OEM parts on the track).

The aftermarket arm has the bushing pre-installed. The OEM and BMW arms include the bushing but it must be pressed into the arm by a qualified technician.

This item fits the following BMWs:
1989-1995 E34 BMW 525i 530i 535i 540i (Sedan and Touring)

The Powerflex Front Control Arm Rear Bushing (Caster Offset) for the BMW F48, F49 X1, and F39 X2 is a premium suspension upgrade designed to improve handling, steering feel, and suspension durability. These bushings replace the factory-installed rubber bushings, which are prone to wear and deflection over time, with high-quality polyurethane bushings that deliver enhanced performance and longevity.

Key Features:

1. Caster Offset Design:

   • The bushing features a caster offset, meaning it slightly adjusts the position of the control arm to increase the vehicle’s caster angle. This improved geometry enhances the car's straight-line stability and helps maintain better steering feel during cornering. The result is sharper turn-in, better directional control, and a more responsive overall driving experience.

2. Superior Material – Polyurethane:

   • Powerflex uses high-performance polyurethane, which is much more durable than standard rubber bushings. Polyurethane bushings resist degradation from oil, road grime, and temperature extremes, making them ideal for both daily driving and high-performance applications.
   • Benefits of Polyurethane:
     • Reduced Flex and Deflection: Offers a firmer connection between the control arm and chassis, reducing unwanted movement in the suspension and improving steering accuracy.
     • Extended Lifespan: Compared to the stock rubber bushings, these will last significantly longer, making them a solid investment for long-term performance and reliability.
     • Improved Handling: The reduced flex and firmer construction mean that the suspension responds more precisely to driver inputs, improving overall handling and cornering stability.

3. Applications:

   • BMW X1 (F48, F49): This model is BMW’s compact luxury crossover SUV. The Powerflex bushings provide better handling, making the X1 more responsive and stable, especially at higher speeds or during spirited driving.
   • BMW X2 (F39): Known for its sportier, coupe-like stance, the X2 benefits from the improved geometry and stiffer bushing, resulting in even sharper steering and enhanced cornering ability, further emphasizing its sport-focused character.

4. Improved Caster Angle:

   • The increased caster angle results in a more self-centering steering feel, providing better directional stability at high speeds, and enhancing control during cornering. This is especially beneficial for drivers who seek a more engaging driving experience or who use their BMW for spirited driving or track days.

5. Performance and Practicality:

   • These bushings aren’t just for performance enthusiasts. Even for daily driving, they offer improvements in steering feedback and stability. The added durability ensures that your suspension components last longer, making it a worthwhile upgrade even for those who don’t push their cars to the limit.

6. Professional Installation Recommended:

   • Installing these bushings requires removing the control arms and pressing out the old bushings. Since the caster offset alters the suspension geometry, a professional alignment is also recommended post-installation to ensure optimal performance.