Powerflex Black 95A Rear Diff Front Mount Insert Pair PFR5-1927BLK for BMW 3 Series F30 F31 F34 (F3x) - Polyurethane Polybush Bushing Upgrade, Final Drive/Carrier Bush Inserts, OE 33316792513

PFR5-1927BLK Uprated Rear Final Drive Front Mount Insert Set - BMW 3 Series F30 F31 F34

Tighten up the rear axle on your F3x 3 Series with this pair of motorsport-grade urethane inserts. PFR5-1927BLK occupies the cavities in the factory front mounts for the rear final drive, dramatically reducing movement under power so the car puts torque down cleanly and consistently. Manufactured in Powerflex’s ultra-firm 95A Black compound, this insert kit is built for serious circuit work and focused performance builds where precision and durability matter.

We run these on our own cars and have fitted countless sets for customers who want sharper response, better composure on throttle and more confidence on corner exit. Expect a more planted rear end, improved traction and repeatable handling when driven hard.

Benefits at a glance

• Limits final drive deflection for cleaner power delivery and grip
• Inserts work with the OE carrier by filling the voids in the original rubber mount
• 95 Shore A Black compound for maximum support during high-load driving
• Ideal for circuit days, sprints, time attack and fast-road builds
• Durable polyurethane construction engineered for longevity

Specification and fitment

• Part number: PFR5-1927BLK
• Chassis: BMW 3 Series F30 F31 F34
• Location: Rear final drive - front mounts - insert pair
• Material hardness: 95A durometer polyurethane
• Quantity in pack: 2 inserts
• OE cross reference: 33316792513
• Diagram reference: 27

Who is it for

• Drivers chasing tighter rear-end control and precise alignment under load
• Track-focused enthusiasts needing an uprated driveline mount solution
• Builders seeking a simple, cost-effective upgrade that retains the stock housing

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote email info@mjmodifications.co.uk.

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