Powerflex PFF5-4631 Gear Change/Selector Arm Front Bush (Oval) for BMW 1 Series F20 F21 2011-2019 - Polyurethane Gear Selector Rod/Shifter Linkage Bushing - Replaces OE 25117507695 - Manual Transmission Gearbox Linkage Insert Upgrade

Crisper gear changes for BMW 1 Series F20 and F21

Transform the feel of your gearchange with the Powerflex PFF5-4631 selector arm front bushing. Designed with an oval profile to suit the OEM arm, this precision polyurethane insert replaces the tired factory rubber to tighten up the linkage and deliver a more direct, positive shift on F20 and F21 chassis cars.

Part number: PFF5-4631 | OEM reference: 25117507695 | Diagram ref: 31 | Quantity: 1 bush

What you will notice

• Cleaner, more accurate engagement across the gate with reduced free play at the lever
• Improved shift confidence on fast road, daily and track use
• Consistent performance thanks to oil, heat and abrasion resistant polyurethane
• Direct fit replacement for the original component with no permanent modifications
• Backed by the Powerflex Lifetime Warranty for long term peace of mind

Why this upgrade works

Rubber softens and degrades over time, which introduces slop into the gear linkage and can make the gearbox feel vague. The Powerflex PFF5-4631 replaces that compliant rubber with performance polyurethane that resists deflection, keeping the selector arm located under load. The result is a tighter, more connected shift feel and a drivetrain that feels refreshed.

Fitment details

• Vehicle: BMW 1 Series F20 and F21
• Location: front bush on the selector arm, oval type
• Direct swap for OE 25117507695

Tried and trusted by our customers

We have installed this bush for numerous BMW 1 Series owners at MJ Modifications and feedback has been consistently excellent. Drivers report immediate improvements in shift precision and a more solid, connected feel from the transmission.

Professional fitting available

For best results and correct alignment, we recommend professional installation. MJ Modifications offers supply and fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

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