Powerflex PFF5-5601G Polyurethane Front Wishbone/Control Arm Rear (Lollipop) Bushes, +0.5° Caster, 66mm - BMW E46 3 Series Compact (Pair)

PFF5-5601G Caster-Offset Poly Bushings for BMW E46 Compact - 66 mm Housing

Transform front-end response, tighten steering and boost straight-line stability with the PFF5-5601G caster-increasing urethane rear mount for the front lower arm. Engineered for the BMW E46 Compact platform with the 66 mm aluminium lollipop carrier, this pair of offset bushings adds an extra +0.5° of caster for crisper turn-in and better self-centring while remaining perfectly road friendly.

Constructed with a hard anodised aluminium outer and a low-friction rotating polyurethane core, this design controls unwanted compliance under braking and cornering. Expect more precise alignment control, a cleaner tyre contact patch and a front axle that feels planted and predictable on fast road and track day use.

• Part number: PFF5-5601G
• Platform: BMW E46 Compact and other E46 models, plus Z4 where fitted with 66 mm carriers
• Location: Front lower arm rear mount - also known as lollipop carrier or rearward control arm mount
• Geometry change: +0.5° caster versus the non-offset version
• Size: 66 mm aluminium housing - please confirm your carrier diameter
• Contents: Pair of bushings
• Diagram reference: 1
• BMW OE cross reference: 31126783376
• Warranty: Powerflex Lifetime Warranty

Why this upgrade works

Ageing factory rubber allows the arm to move, which softens steering feel and can cause instability under load. The PFF5-5601G’s stiffer material and low-resistance pivot reduce deflection, so geometry stays where you set it. The result is sharper responses without harshness and improved braking confidence.

• More accurate steering with improved on-centre feel
• Reduced wander under heavy braking and over rough surfaces
• Better mid-corner stability and tyre wear control
• Ideal for fast road builds with weekend circuit use

Measured gains

Development testing showed a stiffness increase of 128% over the original rubber component. Opting for the Black Series version adds a further 28%, giving a total of 190% compared to OE for dedicated track use.

Real-world feedback

We have installed these on multiple E46 projects in-house and the difference is immediate. Customers consistently report cleaner turn-in, better stability on uneven roads and a more confidence-inspiring front end without unwanted noise or vibration.

Fitment and sizing

This listing suits vehicles with the 66 mm aluminium lollipop housing. Measure your carrier before ordering. Unsure on sizing or compatibility? Get in touch and we will guide you.

Professional installation

For expert fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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