Powerflex Rear Diff Mount – Rear Differential Bush/Bushing (Final Drive Mount) for BMW M4 G82 G83 2020-on | Polyurethane Polybush Upgrade | Wheel Hop/Axle Tramp Fix | PFR5-4026

Powerflex PFR5-4026 Rear Final Drive Mount for BMW M4 G82 and G83 2020 onwards

Transform the way your BMW M4 puts power down with this premium rear final drive mount. Part number PFR5-4026 uses high-quality polyurethane and an integrated alloy support washer to keep the differential under control during hard acceleration, helping to curb axle hop and deliver cleaner launches on fast road and track.

We have installed this upgrade on customer cars and our own builds, and the feedback has been consistently positive. Sharper traction, a more planted rear end and confidence when using launch control or exiting tight bends are the common takeaways.

Why choose this performance mount

• Controls movement of the rear final drive to reduce tramp and improve traction under load
• Integrated support washer for extra rigidity and durability
• Polyurethane 80A hardness for performance use with excellent resilience
• Black anodised 2011-T6 aluminium hardware for strength and corrosion resistance
• Designed for the BMW M4 G82 and G83 2020 onwards

Perfect for

• Fast road builds seeking a tighter rear drivetrain
• Track day and club sport cars chasing consistent launches
• Drag setups aiming to minimise wheel hop and improve 60 ft times

Technical details

• Part number: PFR5-4026
• Diagram reference: 22
• Material: Purple 80A polyurethane with black anodised 2011-T6 aluminium support washer
• Quantity in pack: 1 mount
• Replaces OE references: 33177852495 and 33316899168

Want even more stability from your rear drivetrain assembly? PFR5-4026 can be paired with the PFR5-4030 dual mount rear differential bracket to run two bushes in the original positions for a serious upgrade on tuned cars.

Compatibility and search terms

BMW M4 G82 G83 2020 onwards rear final drive mount, BMW M4 diff mount upgrade, BMW G82 rear differential bushing, polyurethane diff mount M4, polybush rear diff mount, BMW M4 axle tramp fix, wheel hop reduction M4, Powerflex PFR5-4026, performance drivetrain bush, fast road and track rear diff mount, BMW M4 G82 G83 final drive support, differential mounting bush upgrade.

Professional fitting

For installation, book with MJ Modifications in Warwickshire. We offer expert fitting and setup for this upgrade. Request a quote at info@mjmodifications.co.uk.