Powerflex Offset Lower Radiator Mount Bush Kit (8mm) for BMW Z4 E85/E86 2003-2009 - Road Series Red 65A - PFF5-4652 - Replaces 17111178412

PFF5-4652 Polyurethane Lower Radiator Support, 8 mm Forward Relocation, Fits BMW Z4 E85 E86 2003 to 2009

Protect your Z4’s cooling hardware with the Powerflex PFF5-4652 lower radiator support solution. This clever offset mount shifts the radiator approximately 8 mm forward to create crucial clearance for thicker aftermarket cores, expansion tanks and auxiliary belt drives. A simple, high‑value upgrade that helps avoid contact, rubbing and costly damage on uprated or ageing setups.

• Designed for BMW Z4 E85 and E86 models from 2003 to 2009
• 8 mm forward relocation for extra space around the pulley area and expansion bottle
• Durable red 65A polyurethane compound for controlled compliance and long service life
• Straightforward install, typically no coolant drain or radiator removal required
• Ideal when running a thicker alloy radiator or performance cooling package
• Replaces OE reference 17111178412
• Part number PFF5-4652

Why enthusiasts choose this upgrade

We have fitted this part on customer cars and our own builds with excellent results. It restores and adds clearance where you need it most, reducing the risk of the rad, tank or belt system making contact under load or with soft, tired rubber mounts. Expect a tidy, OE-like finish with the durability benefits of polyurethane.

• Helps prevent belt and pulley interference on uprated cooling systems
• Supports reliable daily driving and fast-road use
• Poly bush material resists oil, heat and ageing far better than standard rubber
• Peace of mind upgrade that complements thicker-core radiator installs

Fitment and specs

• Vehicle: BMW Z4 E85 and E86, 2003 to 2009
• Function: Lower radiator mount with forward offset
• Offset: Approximately 8 mm
• Material: Red polyurethane, 65A durometer
• Kit contents: 1 bush assembly
• Part number: PFF5-4652
• OE reference replaced: 17111178412

Installation and support

Professional fitting recommended. For installation at MJ Modifications in Warwickshire, request a quote at info@mjmodifications.co.uk. We are happy to advise on clearance checks, thicker-core radiator compatibility and related cooling upgrades for the Z4 platform.

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