Powerflex PFF5-4631 Gear Shift Arm Front Bush (Oval, 26mm) for BMW M4 F82 F83 (4 Series) Shifter Bushing Replaces OEM 25117507695

Tighten up your gearchange on the BMW M4 F82 and F83 with the Powerflex polyurethane front selector arm bush, part number PFF5-4631 in the oval 26 mm variant. This direct-fit insert replaces the tired factory rubber at the front of the selector carrier to remove slack, cut unwanted movement and deliver a cleaner, more connected shift feel. It is a like-for-like upgrade that replaces OE 25117507695.

If your gear lever feels vague or inconsistent under load, this poly bush for the gearbox linkage restores precision and gives a more positive engagement across the gate. We have fitted this part on customer cars and the feedback is consistently strong - crisper changes, less wobble at the lever and a more confidence-inspiring drive. A simple, high-value upgrade for fast road and track enthusiasts alike.

Key benefits

• Removes excess play in the gear lever linkage for a tighter, more accurate shift
• Improves shift consistency during aggressive driving and high-load conditions
• Durable polyurethane construction resists oil, heat and ageing far better than rubber
• Direct replacement for the front position of the selector carrier on F82 and F83 chassis
• Ideal preventative maintenance to stop slop developing in the transmission linkage

Fitment details

• Vehicle: BMW M4 F82 coupe and F83 convertible within the 4 Series range
• Location: Front position in the selector carrier assembly, oval housing
• Diagram reference: 31

Technical information

• Brand reference: PFF5-4631
• Variant: Oval, 26 mm
• Pack contents: 1 x bush
• Quantity required: 1 or 2 per vehicle depending on application
• Replaces OEM reference: 25117507695

Why this upgrade works

By replacing the soft, ageing rubber element in the gear lever linkage with a high-performance polyurethane insert, you reduce deflection at the selector arm. The result is a tighter mechanism that transmits your input more directly to the gearbox, helping you slot ratios with greater confidence and repeatability.

Installation and support

Professional fitting is recommended. Book our in-house installation service at MJ Modifications, Warwickshire. For a fitting quote and lead times, email info@mjmodifications.co.uk. We can supply, fit and road test for a seamless, hassle-free upgrade.

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