Bilstein B3 Front Strut Suspension Coil Spring 37-251475 - OE Replacement, Standard Ride Height - BMW 1/2/3 Series F20 F21 F23 F30 F31 F34 Front Axle - Fits 118d/120d xDrive, 316d, 318d, 320i/320

Bilstein B3 Front Suspension Spring - Part No. 37-251475

Bring your BMW back to its original poise with this OEM-grade front helical spring from Bilstein. Part number 37-251475 is a direct-fit front axle replacement for selected BMW F-series models including 1 Series F20 and F21, 2 Series F23, and 3 Series F30, F31 and F34. Ideal for cars such as 120d xDrive, 316d, 318d, 320i xDrive, 320d and 325d. If your front end is low on one side, the spring has snapped, or you want factory-spec ride height and comfort, this Bilstein B3 is the no-compromise choice.

As a long-time original equipment supplier, Bilstein builds this front strut coil to BMW specifications for seamless installation and factory-level characteristics. Expect stock ride height, quiet operation and confident road manners, with durability to match daily UK use. We fit these regularly at MJ Modifications and customers consistently praise the restored handling and comfort.

Why choose this Bilstein B3 front spring

• Original-spec front suspension coil for a true drop-in fit on compatible BMW F-series cars
• Perfect when replacing a broken, cracked or tired front spring to cure uneven stance and improve MOT readiness
• Preserves standard ride height and balance for safe, predictable steering and braking
• Comfort-focused and refined, great for commuting and spirited road driving without lowering

Engineering highlights

• Precisely formed pigtail and minibloc designs for correct seating and quiet running
• High-strength chrome vanadium or chrome silicon steel for outstanding resistance to breakage
• Hot-set to minimise height loss, maintaining consistent stance over time
• Surface compression and advanced anti-corrosion coating for long service life in UK weather
• Front axle application, matched spring rate to BMW factory specification

Compatible BMW applications

Suits selected models on the BMW F platform. Notable fitments include:

• BMW 1 Series
  • F20 120d xDrive
  • F21 118d xDrive, 120d xDrive
• BMW 2 Series
  • F23 Convertible 230i, 225d
• BMW 3 Series
  • F30 320i xDrive, 316d, 318d, 318d xDrive, 320d, 325d
  • F31 Touring 320i xDrive, 328i xDrive, 330i xDrive, 335i, 318d xDrive, 320d xDrive, 325d
  • F34 Gran Turismo 320d, 325d

Tip: Always replace springs in axle pairs for best results and even ride height.

Fitting and support

Professional installation is recommended to ensure correct spring seating and alignment. For expert fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

We will confirm fitment before dispatch

Add your UK registration or the last 7 digits of your VIN at checkout and we will verify that Bilstein 37-251475 is right for your vehicle.

Part identifiers

• Bilstein part number: 37-251475
• SKU: BILSTEIN-37-251475
• EAN: 4025258763831
• UPC: 651860767314
• Position: Front axle
• Series: B3

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