Bilstein 21-030253 | Front Suspension Strut Cartridge

Part Number
B4 OE Replacement - Suspension Strut Cartridge

Fits: 89 BMW 525i, 89 BMW 535i, 93-95 BMW 525i

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Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world-famous Bilstein quality.

BRAND: Bilstein


  • Twintube Strut Insert
  • B4 OE Replacement - Suspension Strut Cartridge
  • Suspension Strut Cartridge
  • BMW 5 (E34);F;B4
  • B4 OE Replacement - Suspension Strut Cartridge
  • BMW 525i 1989, 525i 1995-1993, 535i 1989


Boot IncludedNo
California Proposition 65WARNING: Cancer & Reproductive Harm -
FinishBlack Paint
Internal DesignTwintube
Lower Mount TypeBase Cup
SeriesB4 OE Replacement
TitleBilstein Shock Absorbers
Upper Mount TypeStem

Use with 1.125 inch dust cap. Stem 46mm X 14mm.



  • Bilstein: F4-PNE-3025-BE
  • Bilstein: PNE-3025
  • BMW: 31 32 1 135 674
  • KYB: 366007
  • Sachs: 115 067
  • BMW: 31 32 1 092 283
  • Bilstein: F4-PNE-3025-BG
  • Sachs: 312 255
  • Bilstein: 21-031182
  • Sachs: 100 798
  • KYB: 365069
  • BMW: 31 32 1 135 416
  • BMW: 31 32 1 135 858


  • 1993-1995 BMW 525i - Position: Front
  • 1989-1989 BMW 525i - Position: Front
  • 1989-1989 BMW 535i - Position: Front
Customer Questions
How often should shock absorbers be replaced?
Shock absorbers should generally be replaced every 50,000 miles or every 5-7 years
How to replace shock absorbers?
To replace shock absorbers, you need to remove the wheel and tire assembly, unbolt the old shock absorber, replace it with a new one, and tighten the bolts. Then, reinstall the wheel and tire, and test the new shocks.
Why do shock absorbers leak?
Shock absorbers can leak due to worn seals, damage to the piston or cylinder, or corrosion from exposure to moisture and road salt.
Can shock absorbers be replaced?
Yes, shock absorbers can be replaced when they start to wear out or fail.
Please, mind that only logged in users can submit questions

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