Powerflex PFF5-4652 Offset Lower Radiator Mount Bush Kit for BMW Z4M (S54) E85/E86 (2006-2009) - 8mm Offset, Red 65A Road Series, Replaces 17111178412

Offset Lower Radiator Support Bush Kit for BMW Z4 M E85 E86 S54 2006 to 2009 — Powerflex PFF5-4652

Solve clearance headaches on your Z4 M with this polyurethane lower radiator mounting bush set from Powerflex. Part number PFF5-4652 relocates the bottom of the radiator forward by 8 mm, creating the extra space needed around the coolant expansion bottle and auxiliary belt pulley when running a thicker core radiator. It replaces the factory rubber insulator BMW 17111178412 with a durable red 65 Shore A Road Series component designed for daily use and fast road driving.

What it does

• Moves the lower rad position forward by 8 mm to increase clearance for bigger alloy radiators
• Reduces the risk of the rad touching the expansion tank or front-end pulleys under load
• Retains OE-like comfort while improving location and longevity vs soft rubber
• Straightforward install on the car with no need to drain coolant or remove the radiator

Why enthusiasts choose this upgrade

The S54 in the Z4 M runs hot, and many owners fit uprated, thicker radiators. This simple offset lower mount bush solves the common interference issue by shifting the radiator slightly forward for safe, reliable spacing. The polyurethane construction is resistant to oil, heat and ageing, keeping the radiator securely located to help protect the cooling system and auxiliary drive components.

Real-world feedback

We have installed this kit at MJ Modifications on multiple customer Z4 M builds. Owners report the clearance they needed with larger cores and peace of mind from eliminating contact around the front of the engine. It is a small, smart mod that prevents big bills.

Compatibility

• BMW Z4 M E85 Roadster and E86 Coupe 2006, 2007, 2008, 2009
• Engine: S54 3.2
• Diagram reference: 52

Product details

• Brand: Powerflex Road Series
• Part number: PFF5-4652
• Offset: 8 mm forward
• Material hardness: Red 65A polyurethane
• Replaces OEM: 17111178412
• Quantity in pack: 1 bush
• Colour: Red

Key search terms

BMW Z4 M E85 E86 lower rad support, radiator mounting grommet, poly bush radiator mount, cooling system clearance mod, S54 radiator insulator, front radiator cradle bush, larger core radiator fitment Z4M, offset rad mount 8mm, BMW 17111178412 replacement, Powerflex PFF5-4652 polybush, Z4 M cooling upgrade, radiator interference fix, expansion tank clearance, auxiliary belt pulley clearance.

Fitting and support

Prefer professional installation. MJ Modifications in Warwickshire can fit this part and advise on cooling upgrades for your Z4 M. Request a fitting quote at info@mjmodifications.co.uk.

Order your Powerflex PFF5-4652 offset lower radiator mount bush today and protect your S54 cooling system with a neat, cost-effective solution that works on the road and for fast road use.