Bilstein B12 Pro-Kit Suspension Kit 46-181237 for BMW Z4 E85 Roadster (2002–2009) 2.2i 2.5i 2.5si 3.0i 3.0si – B8 Dampers + Eibach Pro-Kit Springs, 10–30mm Lowering
Bilstein B12 Pro-Kit Suspension Kit 46-181237 for BMW Z4 E85 Roadster (2002–2009) 2.2i 2.5i 2.5si 3.0i 3.0si – B8 Dampers + Eibach Pro-Kit Springs, 10–30mm Lowering
Bilstein B12 Pro-Kit Suspension Kit 46-181237 for BMW Z4 E85 Roadster (2002–2009) 2.2i 2.5i 2.5si 3.0i 3.0si – B8 Dampers + Eibach Pro-Kit Springs, 10–30mm Lowering
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  • Load image into Gallery viewer, Bilstein B12 Pro-Kit Suspension Kit 46-181237 for BMW Z4 E85 Roadster (2002–2009) 2.2i 2.5i 2.5si 3.0i 3.0si – B8 Dampers + Eibach Pro-Kit Springs, 10–30mm Lowering
  • Load image into Gallery viewer, Bilstein B12 Pro-Kit Suspension Kit 46-181237 for BMW Z4 E85 Roadster (2002–2009) 2.2i 2.5i 2.5si 3.0i 3.0si – B8 Dampers + Eibach Pro-Kit Springs, 10–30mm Lowering

Bilstein B12 Pro-Kit Suspension Kit 46-181237 for BMW Z4 E85 Roadster (2002–2009) 2.2i 2.5i 2.5si 3.0i 3.0si – B8 Dampers + Eibach Pro-Kit Springs, 10–30mm Lowering

£1,106.07
£1,106.07
£1,099.20
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Bilstein B12 Pro-Kit Suspension Kit for BMW Z4 E85 Roadster 2.2i 2.5i 2.5si 3.0i 3.0si – Part Number 46-181237

Upgrade your BMW Z4 E85 suspension with the Bilstein B12 Pro-Kit 46-181237. This premium performance suspension kit pairs Bilstein B8 dampers with Eibach Pro-Kit progressive springs to deliver sharper handling, reduced body roll and a lower, sportier stance. Perfect for fast road use and daily driving, the B12 Pro-Kit is the ideal coilover alternative for BMW Z4 owners who want reliable, set-and-forget performance without the complexity of height adjustment.

This Bilstein B12 kit offers an approximate lowering of 10 mm to 30 mm depending on engine and model. Expect precise steering response, improved cornering stability and confident high-speed composure thanks to Bilstein gas pressure technology and expertly matched spring and damper rates. We have fitted and used this kit ourselves and customer feedback on ride quality and handling has been consistently excellent.

Why choose the Bilstein B12 Pro-Kit for your BMW Z4 E85

  • Matched performance suspension kit for BMW Z4 E85 Roadster 2002 to 2009 2.2i 2.5i 2.5si 3.0i 3.0si
  • Includes Bilstein B8 high-performance dampers with Eibach Pro-Kit progressive springs
  • Lowering of approximately 10 mm to 30 mm depending on application for a purposeful stance
  • Precise steering, reduced body roll and improved balance in fast road driving
  • Excellent ride comfort for daily use with sporty control when pressing on
  • Bilstein gas pressure monotube technology for consistent damping and durability
  • German TÜV certification and renowned Bilstein engineering quality

What you get

  • 4 x Bilstein B8 performance shock absorbers
  • 4 x Eibach Pro-Kit progressive rate springs
  • Direct-fit kit designed specifically for the BMW Z4 E85

Fitment compatibility

BMW Z4 Roadster E85 09.2002 to 12.2009:

  • 2.2i
  • 2.5i
  • 2.5si
  • 3.0i
  • 3.0si

Popular search terms

Bilstein B12 Z4 E85, Bilstein 46-181237, Bilstein B8 Z4, Eibach Pro-Kit Z4, BMW Z4 E85 suspension kit, BMW Z4 lowering springs and shocks, BMW Z4 coilover alternative, Z4 2.5i suspension upgrade, Z4 3.0i suspension upgrade, Z4 3.0si suspension kit, performance suspension BMW Z4.

Compatibility check

We verify compatibility before dispatch. Add your registration number for UK vehicles or the last 7 digits of your VIN at checkout and we will confirm the part fits your BMW Z4 E85.

Professional fitting

For installation we recommend our in-house fitting service at Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.

Part details

Part number: BILSTEIN-46-181237

Shock absorber type: Gas pressure

EAN: 4025258674625

UPC: 651860673028

In summary

The Bilstein B12 Pro-Kit 46-181237 is a proven BMW Z4 E85 suspension upgrade that delivers real-world performance, confident handling and a clean, even drop. Order your Bilstein B12 Pro-Kit today for the perfect balance of comfort, control and aesthetics on your Z4.

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