Powerflex Black Series Torque Arm Insert 40mm Small Bush - Ford Fiesta ST Mk8 1.5 EcoBoost 2017+ (ST 200) - Rear Engine/Dogbone/Gearbox Pendulum Mount Poly Bush - Anti Wheel Hop/Engine Stabiliser Upgrade - PFF19-2221BLK

Track-focused polyurethane torque arm insert for Fiesta ST Mk8 1.5T - PFF19-2221BLK

Unlock sharper drivetrain response and cut unwanted movement with the Powerflex Black Series 95A polyurethane torque arm insert, part number PFF19-2221BLK. Built for serious track work and fast-road use, this high-stiffness bush tightens up the pendulum support at the rear of the powertrain, helping your Ford Fiesta ST Mk8 1.5 turbo put power down more cleanly with less hop, less squirm and crisper shifts.

We have installed PFF19-2221BLK on multiple customer cars in our workshop and the feedback has been excellent. Expect a more connected feel, improved traction off the line and greater consistency under hard acceleration. As with any motorsport-grade insert, some increase in noise and vibration is normal and is a worthwhile trade for control and durability.

Key benefits

• 95A Black Series polyurethane for maximum control of engine and transmission movement
• Reduces axle tramp and torque steer for stronger, more repeatable launches
• Sharper throttle response and cleaner gear engagement under load
• Motorsport-grade material engineered to cope with heat and high loads
• Direct-fit small bush insert for the rear pendulum torque arm

Fitment and specs

• Vehicle compatibility: Ford Fiesta ST Mk8 ST200 1.5 EcoBoost 2017 on
• Position: rear torque arm small bush insert - also known as engine stabiliser bush, dog bone insert, transmission pendulum insert
• Bush size: 40 mm small bush
• Diagram reference: 21
• Quantity per pack: 1 bush
• Series: Black Series - track and competition focused

Part numbers

• Powerflex: PFF19-2221BLK
• Replaces OE references: K1BY-6P082-AB, K1BY-6P082-AC

Important sizing note

This insert suits the 40 mm small bush only. Please measure your existing mount before ordering to ensure correct fit.

NVH guidance

The stiffer compound significantly limits drivetrain movement compared with rubber, which can add some cabin vibration. For drivers prioritising handling precision, traction and longevity, this is the expected and accepted characteristic of a performance insert.

Professional fitting

We recommend professional installation. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

Also searched as

Fiesta ST Mk8 torque arm bush 40 mm, Fiesta 1.5 EcoBoost engine stabiliser insert, ST200 pendulum support bush, Fiesta ST transmission mount upgrade, rear engine steady bush Fiesta, anti wheel hop insert Fiesta ST, performance poly bush Fiesta Mk8, Powerflex PFF19-2221BLK, gearbox torque mount insert Fiesta ST, Fiesta ST launch improvement mount, Fiesta ST drivetrain mount upgrade, Fiesta 2017 on rear mount insert 40 mm.