Powerflex PFF5-1901G Caster-Adjustable Front Lower Control Arm Rear Bush/Bushing Kit – BMW 3 Series F30 F31 F34 (F3x) 2012-2019 – Polyurethane/Urethane Tension Strut | Thrust/Radius/Wishbone Arm to Chassis – Road Series – Pack of 2

Caster-Adjustable Urethane Front Lower Arm Rear Mount Bushings for BMW F30 F31 F34 – PFF5-1901G – Pack of 2

Dial in front-end precision on your BMW 3 Series with the PFF5-1901G caster-adjustable urethane bushing kit. Designed for the front lower control arm rear position – also known as the tension strut or thrust arm rear mount – this upgrade brings sharper turn-in, rock-solid straight-line tracking and consistent tyre contact for F30, F31 and F34 platforms.

Built in Powerflex Road Series material, these bushes are approximately 60 percent stiffer than tired factory rubber, limiting unwanted movement while maintaining excellent comfort and low NVH for daily driving and fast-road use. On-car adjustment of about plus or minus 0.75 degree of caster lets you fine-tune alignment for quicker steering response and better front-end bite. The added caster also generates more negative camber on turn, boosting grip and confidence through corners and under heavy braking.

• Part number: PFF5-1901G – Caster adjustable
• Chassis compatibility: BMW 3 Series F30 saloon, F31 Touring, F34 Gran Turismo
• Location: Front lower arm rear mount – tension strut to chassis
• Adjustment range: Approx. +/- 0.75 degree caster on-car
• Material: Road Series polyurethane for control with daily comfort
• Contents: Pack of 2 bushes
• Diagram reference: 1
• Backed by a Lifetime Warranty from Powerflex

Why choose this upgrade

• Improve steering feel and response for a more connected drive
• Increase stability under braking and at motorway speeds
• Enhance front-end grip with better camber gain on turn-in
• Reduce uneven tyre wear by keeping geometry consistent
• Durable, long-lasting alternative to soft OE rubber

If your F30, F31 or F34 feels vague, wanders, or shows irregular tyre wear, worn compliance bushes are often the culprit. This caster-adjustable urethane kit locks the front geometry in place so the chassis does what you ask, every time. We run these bushes on our own builds and customer cars, and the transformation in accuracy and confidence is exactly what enthusiasts are after.

Prefer a fixed, non-adjustable option for a simple refresh? Consider PFF5-1901.

Professional installation

For expert fitting and alignment, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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