Bilstein B1 12-251377 Front Strut Top Mount Support Bearing Plate 3-Bolt 3-Hole (Upper Shock Mount/Top Hat) for BMW 1 2 3 4 Series F20 F21 F22 F23 F30 F31 F34

Bilstein B1 Front Upper Shock Mount Bearing Plate, 3-hole, BMW F-Series - Part No. 12-251377

Part numbers: 12-251377, BILSTEIN-12-251377
EAN: 4025258763695
UPC: 651860767031

Refresh your BMW chassis with the Bilstein B1 front upper mount and bearing assembly. This OE-spec mounting plate with integrated bearing cures play in the front suspension, brings back crisp steering feel and eliminates unwanted knocks. Engineered by Bilstein to match factory geometry, it is the ideal service replacement when renewing dampers or springs, and it pairs perfectly with Bilstein shock absorbers as well as standard equipment.

We have fitted this part on customer cars and our own builds, and the feedback is consistent, tighter front end response, quieter operation and a confidence-inspiring, factory-fresh drive. If your F-Series BMW has started creaking over speed bumps, wandering on the motorway or showing uneven tyre wear, this front top hat and bearing plate is the smart fix.

Key advantages

• OEM-grade construction for durability and long service life
• Precise location of the strut for true alignment and accurate tracking
• Reduces noise, vibration and harshness from tired mounting rubbers
• Direct-fit front axle component with 3 mounting holes, no modifications
• Optimised to work with Bilstein dampers and standard shocks
• Perfect when installing new coil springs or shock absorbers, replace in pairs for best results

Technical info

• Position, front axle
• Fixings, 3 bolt pattern
• Range, Bilstein B1 service and support parts
• Manufacturer, Bilstein
• Part number, 12-251377

Vehicle applications

Suits a wide range of BMW F-Series platforms. If you are unsure, ask us to check.

• BMW 1 Series
  • F20 Hatchback 07.11 to 06.19, 114i 116i 118i 125i 114d 116d 118d 120d 125d
  • F21 3-door 12.11 on, 114i 116i 118i 125i M135i M135i xDrive 114d 116d 118d 118d xDrive 120d 120d xDrive 125d
• BMW 2 Series
  • F22 Coupe 10.12 on, 218d 220d 225d 220i 228i 228i xDrive M235i M235i xDrive
  • F23 Convertible 03.14 on, 220i 228i M235i 220d
• BMW 3 Series
  • F30 Saloon 11.11 to 10.18, 316i 320i 320i xDrive 328i 328i xDrive 335i 335i xDrive 316d 318d 318d xDrive 320d 320d xDrive 325d 330d 330d xDrive 335d xDrive and ActiveHybrid
  • F31 Touring 07.12 to 06.19, 316i 320i 320i xDrive 328i 328i xDrive 335i 335i xDrive 316d 318d 318d xDrive 320d 320d xDrive 325d 330d 330d xDrive 335d xDrive
  • F34 Gran Turismo 07.12 on, 320i 320i xDrive 328i 328i xDrive 335i 335i xDrive 318d 320d 320d xDrive 325d 330d 330d xDrive 335d xDrive
  • F80 M3 where applicable
• BMW 4 Series
  • F32 Coupe 07.13 on, 420i 420i xDrive 428i 428i xDrive 435i 435i xDrive 420d 420d xDrive 425d 430d 430d xDrive 435d xDrive
  • F33 Convertible 10.13 on, 420i 428i 428i xDrive 435i 435i xDrive 420d 425d 430d 435d xDrive
  • F36 Gran Coupe 03.14 on, 418d 420d 420d xDrive 420i 420i xDrive 428i 428i xDrive 435i 435i xDrive 430d 430d xDrive 435d xDrive
  • F82 and F83 platform where applicable

When to replace the mount

• Clunks or creaks from the front turret area over bumps
• Vague steering around centre or poor return to centre
• Excessive play felt when rocking the wheel at standstill
• Uneven tyre wear despite correct pressures and alignment

Installation and support

Professional installation recommended. MJ Modifications in Warwickshire can supply and fit, request a quote at info@mjmodifications.co.uk. We always advise replacing left and right mounts together and carrying out a full wheel alignment after fitment.

Compatibility check before dispatch

Provide your UK registration number or the last 7 digits of your VIN at checkout and we will confirm that Bilstein 12-251377 is correct for your vehicle.

Search-friendly phrases

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