Powerflex Polyurethane Rear Diff Mount Bush/Bushing for BMW M3 F80 (3 Series) – Rear Differential/Final Drive Mount Upgrade, OE Replacement – PFR5-4026 – Replaces 33177852495 33316899168

Sharpen the rear-end response of your BMW M3 (F80) with a high-performance polyurethane differential mount

Bring control and confidence to your driveline under hard throttle, launches and fast-road use. This uprated poly bushing limits unwanted movement of the final drive, helping to banish axle tramp and wheel hop for cleaner traction and more direct power delivery. We’ve fitted this upgrade to our own builds and customer cars, and the feedback has been consistently excellent for firmness, stability and durability.

Why this upgrade

• Reduces drivetrain wind-up for crisper throttle response and improved grip out of corners
• Controls diff movement to minimise wheel-hop during aggressive starts and gear changes
• Direct replacement for the OE rubber item to refresh an ageing rear end
• Engineered support washer built in for added strength under load

Construction

• 80A Shore polyurethane for a firm, performance-focused compound
• Black anodised 2011-T6 aluminium components for long-term reliability
• Purple compound visual identifier

Options and compatibility

• Works with the PFR5-4030 dual-mount rear differential bracket to run two mounts in the OEM locations for even greater support
• Quantity: 1 bush supplied per pack
• Replaces OE references: 33177852495, 33316899168
• Diagram reference: 22
• Part number: PFR5-4026

Perfect for

• Track days, drag starts and fast-road driving
• Owners chasing a tighter rear axle feel and more consistent launches
• BMW M3 F80 enthusiasts seeking a durable poly bush upgrade

Fitting service

Professional installation available at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and lead times.

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