Bilstein 19-230221 | Front Left Suspension Strut Assembly

Part Number
B4 OE Replacement - Suspension Strut Assembly

Fits: 12-18 BMW 640i, 12-18 BMW 650i, 13-18 BMW 640i Gran Coupe, 13-19 BMW 650i Gran Coupe

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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


  • B4 OE Replacement - Suspension Strut Assembly
  • Twintube Strut Assembly
  • B4 OE Replacement - Suspension Strut Assembly
  • BMW 640i 2018-2012, 640i Gran Coupe 2018-2013, 650i 2018-2012, 650i Gran Coupe 2019-2013
  • Suspension Strut Assembly
  • BMW 6er Coupe (F13);FL;B4


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

Without Electronic Suspension



  • BMW: 31 31 6 860 749
  • BMW: 31 31 6 789 607
  • BMW: 31 31 6 860 747
  • BMW: 31 31 6 789 659


  • 2013-2018 BMW 640i Gran Coupe - Position: Front Left
  • 2012-2018 BMW 640i - Position: Front Left
  • 2012-2018 BMW 650i - Position: Front Left
  • 2013-2019 BMW 650i Gran Coupe - Position: Front Left
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.
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