Powerflex Track Gearbox Mounting Bush Insert - F40 (2018 - ) 1 Series - PFF5-1322BLK

BMW F40 1 Series Transmission Mount Poly Insert - Black Series - PFF5-1322BLK

Sharpen driveline response and lock down unwanted movement with this Black Series transmission mount insert for the BMW F40 1 Series 2018 onwards. Built from a motorsport-grade polyurethane at 95 Shore A hardness, it fills the cavities in the factory rubber mount to deliver a tighter, more connected feel without the cost of a full mount replacement. Ideal for spirited driving, track days and fast road builds.

• Fits BMW F40 1 Series 2018 onwards
• Part number: PFF5-1322BLK
• Diagram reference: 22
• Quantity in pack: 1 insert
• Replaces OE bush number: 22316853453
• Black Series compound for competition use
• 95 Shore A polyurethane for precise drivetrain location

Why upgrade

• Reduces engine and transmission movement under load for crisper gear changes
• Improves throttle response and drive-off traction by stabilising the powertrain
• Cost-effective performance upgrade that works with the original mount housing
• Durable polyurethane resists cracking and degradation far better than ageing rubber

As these cars age and power levels rise, the stock rubber mount can allow excessive movement. This insert supports the original mount by filling the voids, helping to control wheel-hop and driveline shunt for a cleaner, more precise driving experience. We have installed this on customer cars and our own builds with excellent results, and feedback has been consistently positive for shift feel and stability.

Track focused. Race ready

The Black Series compound is designed for maximum chassis control and consistency. It is the choice for users prioritising performance and precision on circuit or during aggressive road use.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote or advice.

Key search terms

BMW F40 transmission mount insert, 1 Series F40 poly bush, gearbox mount poly insert upgrade, drivetrain mount insert, performance transmission bush, Black Series polyurethane, BMW F40 2018 on mount upgrade, PFF5-1322BLK, 22316853453 replacement, motorsport mount insert.