Bilstein B1 Front Top Strut Mount - BMW F2x F3x F8x - Part No. 12-251377
Part Number: BILSTEIN-12-251377
Upgrade your BMW suspension with the Bilstein B1 front top strut mount - the OEM-quality support bearing that restores precision, comfort and confidence. Designed for exact fitment on the front axle with a 3-bolt pattern, this front strut top mount is the perfect replacement for tired, noisy or worn strut mounts on popular BMW models including 1 Series F20 F21, 2 Series F22 F23, 3 Series F30 F31 F34 F80 and 4 Series F32 F33 F36 F82 F83. Ideal for daily driving and spirited use, it pairs perfectly with Bilstein shock absorbers and maintains factory ride quality and geometry.
We use these mounts in-house and our customers love the transformation - sharper steering response, reduced knocks and creaks, and a tight, factory-fresh feel. If you are chasing a suspension refresh on a BMW 116i, 218i, 320d or M135i, this is the go-to top mount solution.
Why choose the Bilstein B1 Top Strut Mount 12-251377
- Genuine Bilstein B1 Service Part - built to original manufacturer quality
- Precisely adapted to Bilstein shock absorbers for perfect fit and performance
- Restores steering precision and suspension geometry
- Reduces noise, vibration and harshness from worn mounts
- Durable OE-grade materials for long-term reliability
- Direct-fit front axle mount with 3 mounting bores - no modifications required
- Ideal replacement when fitting new shocks or springs - often replaced in pairs
Technical Details
- Fitting position: Front axle
- Number of mounting bores: 3
- Range: Bilstein B1 - support bearing and service parts
- Manufacturer: Bilstein
- Part number: BILSTEIN-12-251377
- EAN: 4025258763695
- UPC: 651860767031
Vehicle Compatibility
BMW applications for Bilstein 12-251377 include the following F-series models and engines. If you are unsure, contact us and we will confirm fitment.
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BMW 1 Series
- F20 1 Series Hatchback 07.11 - 06.19 - 114i, 116i, 118i, 125i, 114d, 116d, 118d, 120d, 125d
- F21 1 Series 3-door 12.11 - - 114i, 116i, 118i, 125i, M135i, M135i xDrive, 114d, 116d, 118d, 118d xDrive, 120d, 120d xDrive, 125d
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BMW 2 Series
- F22 Coupe 10.12 - - 220i, 228i, 228i xDrive, M235i, M235i xDrive, 218d, 220d, 225d
- F23 Convertible 03.14 - - 220i, 228i, M235i, 220d
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BMW 3 Series
- F30 Saloon 11.11 - 10.18 - ActiveHybrid, 316i, 320i, 320i xDrive, 328i, 328i xDrive, 335i, 335i xDrive, 316d, 318d, 318d xDrive, 320d, 320d xDrive, 325d, 330d, 330d xDrive, 335d xDrive
- F31 Touring 07.12 - 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 - - 320i, 320i xDrive, 328i, 328i xDrive, 335i, 335i xDrive, 318d, 320d, 320d xDrive, 325d, 330d, 330d xDrive, 335d xDrive
- F80 M3 platform compatibility as listed above where applicable
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BMW 4 Series
- F32 Coupe 07.13 - - 420i, 420i xDrive, 428i, 428i xDrive, 435i, 435i xDrive, 420d, 420d xDrive, 425d, 430d, 430d xDrive, 435d xDrive
- F33 Convertible 10.13 - - 420i, 428i, 428i xDrive, 435i, 435i xDrive, 420d, 425d, 430d, 435d xDrive
- F36 Gran Coupe 03.14 - - 420i, 420i xDrive, 428i, 428i xDrive, 435i, 435i xDrive, 418d, 420d, 420d xDrive, 430d, 430d xDrive, 435d xDrive
- F82 and F83 platform compatibility as listed above where applicable
Fitting and Installation
Professional fitting is recommended. Nforcd offers expert installation in Warwickshire - request a fitting quote at Sales@nforcd.com. We recommend replacing strut mounts in pairs and aligning the vehicle after installation for the best results.
Compatibility Check
We will verify compatibility before dispatch. Provide your UK registration number or the last 7 digits of your VIN at checkout and our team will confirm that Bilstein 12-251377 suits your vehicle.
Common search terms
Bilstein 12-251377, Bilstein B1 top mount, BMW front strut mount F20 F21 F22 F23 F30 F31 F34 F36 F80 F82 F83, BMW 116i 118i 125i 218i 220d 320d M135i top mount, BMW support bearing, front suspension mount, strut top bearing, shock absorber mount, top hat, turret bearing, 3-bolt front top mount, OEM replacement BMW strut mount, Bilstein service parts.