Powerflex PFR5-1920 Rear Subframe / Rear Axle Carrier Front Mount Insert Kit for BMW 1 Series F20 F21 (2011-2019) Polyurethane Polybush Cradle Bushings Pair - OE 33316792509 - Handling & Chassis Upgrade

Uprated Rear Axle Carrier Front Mount Insert for BMW 1 Series F20, F21

Part number: PFR5-1920

Diagram reference: 20

Quantity in kit: 2 inserts

Transform the rear end of your BMW hatchback with these high quality polyurethane inserts. Designed to locate in the voids of the factory rear cradle front mounting, this upgrade limits cradle deflection under load for a tighter, more predictable drive without the expense of a full replacement mount. Ideal for fast road use and track day cars that still see daily driving.

Why choose this upgrade

• Reduces rear sub-frame movement for sharper turn in and improved stability
• More consistent alignment under acceleration and braking, helps curb uneven tyre wear
• Enhanced traction, better power delivery and reduced wheel hop on bumpy surfaces
• Cost effective performance gain, easy-to-fit insert solution that works with the OE mount
• Durable polyurethane construction with excellent NVH control
• Backed by a Lifetime Warranty

Fitment and notes

Suitable for BMW 1 Series F20 and F21 chassis. Insert type component that installs into the cavities of the original rear axle carrier front bush to control movement and improve chassis response.

OE cross reference for search and identification: 33316792509 (for reference only).

Real world results

We run these on our own builds and they are a popular choice with our customers, delivering a noticeably tighter rear end, more confidence mid corner and a more planted feel on British roads.

Fitting service

Professional installation recommended. Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Common search terms

BMW F20 bush insert, BMW F21 rear cradle insert, rear axle carrier front mount, sub frame insert kit, polyurethane bushing upgrade, 1 Series rear subframe insert, performance suspension bushes, chassis stiffening, handling upgrade, uprated rear mounts, BMW 1 Series suspension kit, rear end stability upgrade.