HomeSuspension > Shocks and StrutsKYB SM5257 Shock Mount - Rear Upper
Part #: SM5257

KYB SM5257 Shock Mount - Rear Upper

Mount Components, Rear Upper
53 vehicles fit this part
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Mount Components, Rear Upper
Fitment: BMW, 325Ci, 330Ci, 325i, 325xi, 330i, 330xi, Z4, M3, Z3, 323Ci, 323i, 328Ci, and 328i
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Overview of KYB Suspension Shock Absorber Mount SM5257

The KYB Suspension Shock Absorber Mount SM5257 is designed specifically for select BMW models, providing reliable support and durability. This mount is engineered to maintain proper suspension alignment and absorb vibrations for a smoother ride.

  • Compatible with BMW 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, 330xi, M3, Z3, and Z4 models
  • Part number SM5257 ensures precise fitment and easy identification
  • Part of the KYB Mount Components product line, focused on suspension mounting solutions
  • Constructed to support shock absorber function and reduce noise and vibration
  • Durable materials designed for long-lasting suspension performance

Detailed Product Description

The KYB SM5257 Suspension Shock Absorber Mount is a critical component in the suspension system of various BMW vehicles. It serves as the interface between the shock absorber and the vehicle chassis, helping to isolate road vibrations and maintain suspension geometry. This mount is engineered to meet OEM specifications, ensuring compatibility with BMW 3 Series models such as the 323Ci, 325i, and 330i, as well as performance and sport models like the M3 and Z4. The part number SM5257 identifies this specific mount within KYB's Mount Components line, which specializes in suspension mounting parts designed to enhance vehicle stability and ride comfort.

Common Applications and Problem Resolution

  • Reduces excessive noise and vibration caused by worn or damaged mounts
  • Prevents suspension misalignment and uneven tire wear
  • Improves handling by maintaining proper shock absorber positioning
  • Addresses clunking or knocking sounds during driving over bumps
  • Restores suspension performance after mount deterioration

Installation Notes and Tips

Installation of the KYB SM5257 mount should be performed by a qualified technician familiar with BMW suspension systems. It is recommended to inspect the shock absorbers and related suspension components during replacement to ensure overall system integrity. Proper torque specifications should be followed to avoid premature wear or failure. Using the correct tools and following vehicle-specific service manuals will help achieve optimal results.

Quality Assurance and Warranty

KYB's Mount Components product line, including the SM5257 suspension shock absorber mount, is manufactured to meet strict quality standards. While specific warranty details may vary, KYB typically offers coverage against defects in materials and workmanship. This ensures that the SM5257 mount delivers consistent performance and durability for BMW vehicles listed in the fitment.

This part fits 53 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2006BMW325CiRear UpperExc. M-Technik Susp.; Mount Components
2006BMW330CiRear UpperMount Components
2005BMW325CiRear UpperExc. M-Technik Susp.; Mount Components
2005BMW325iRear UpperExc. M-Technik Susp.; Mount Components
2005BMW325xiRear UpperMount Components
2005BMW330CiRear UpperMount Components
2005BMW330iRear Upper(Except Adaptive Control Suspension; Mount Components
2005BMW330xiRear UpperMount Components
2005BMWZ4Rear UpperMount Components
2004BMW325CiRear UpperExc. M-Technik Susp.; Mount Components
2004BMW325iRear UpperExc. M-Technik Susp.; Mount Components
2004BMW325xiRear UpperMount Components
2004BMW330CiRear UpperMount Components
2004BMW330iRear Upper(Except Adaptive Control Suspension; Mount Components
2004BMW330xiRear UpperMount Components
2004BMWZ4Rear UpperMount Components
2003BMW325CiRear UpperExc. M-Technik Susp.; Mount Components
2003BMW325iRear UpperExc. M-Technik Susp.; Mount Components
2003BMW325xiRear UpperMount Components
2003BMW330CiRear UpperMount Components
2003BMW330iRear Upper(Except Adaptive Control Suspension; Mount Components
2003BMW330xiRear UpperMount Components
2003BMWM3Rear UpperMount Components
2003BMWZ4Rear UpperMount Components
2002BMW325CiRear UpperExc. M-Technik Susp.; Mount Components
2002BMW325iRear UpperExc. M-Technik Susp.; Mount Components
2002BMW325xiRear UpperMount Components
2002BMW330CiRear UpperMount Components
2002BMW330iRear Upper(Except Adaptive Control Suspension; Mount Components
2002BMW330xiRear UpperMount Components
2002BMWM3Rear UpperMount Components
2002BMWZ3CoupeRear UpperExc. Sport Susp.; Mount Components
2002BMWZ3RoadsterRear UpperExc. Sport Susp.; Mount Components
2001BMW325CiRear UpperExc. M-Technik Susp.; Mount Components
2001BMW325iRear UpperExc. M-Technik Susp.; Mount Components
2001BMW325xiRear UpperMount Components
2001BMW330CiRear UpperMount Components
2001BMW330iRear Upper(Except Adaptive Control Suspension; Mount Components
2001BMW330xiRear UpperMount Components
2001BMWM3Rear UpperMount Components
2001BMWZ3CoupeRear UpperExc. Sport Susp.; Mount Components
2001BMWZ3RoadsterRear UpperExc. Sport Susp.; Mount Components
2000BMW323CiRear UpperMount Components
2000BMW323iRear Upper(E46); Mount Components
2000BMW328CiRear UpperMount Components
2000BMW328iRear Upper(E46); Mount Components
2000BMWZ3CoupeRear UpperExc. Sport Susp.; Mount Components
2000BMWZ3RoadsterRear UpperExc. Sport Susp.; Mount Components
1999BMW323iRear Upper(E46); Mount Components
1999BMW328iRear Upper(E46); Mount Components
1999BMWZ3CoupeRear UpperExc. Sport Susp.; Mount Components
1999BMWZ3RoadsterRear UpperExc. Sport Susp.; Mount Components
1998BMWZ3RoadsterRear UpperExc. Sport Susp.; Mount Components

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

904966

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.