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Vehicle Info NeededBILSTEINPART NUMBER: 132-21-030505
21-030505 B4 OE Replacement Suspension Strut Cartridge Fits Select BMW
$12300
Ships on Nov 02, 2026
Lowest Price Guarantee- B4 OE Replacement - Suspension Strut Cartridge
- Twintube Strut Insert
- BMW 318i 1991
- 318is 1991
- 325e 1987-1984
- 325es 1987-1986
- 325i 1991-1987
- 325i 1993
- 325is 1991-1987
- Position: Front
- Boot Included: No
- 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.
- Internal Design: Twintube
- Finish: Black Paint
- Upper Mount Type: Stem
- Lower Mount Type: Housing
- Spring Seat Included: No
21-030505 Suspension Strut Cartridge Features:
Quality Struts for Factory Replacement
Bilstein engineered the B4 Strut Assembly to be a direct replacement when restoring your vehicle's original ride quality. They are ideal for the everyday driver as each is manufactured to meet OEM standards to ensure safety, durability, and performance. Available individually for front and rear of most foreign and domestic applications.
Part TypeStrut Cartridge
Product LineBilstein B4 OE Replacement Strut Assemblies
BrandBILSTEIN
Package Height2.95
Package Width2.95
Package Length26.8
Weight6.33 PG
Part CategoryReplacement Parts
SeriesB4 OE Replacement
Boot IncludedNo
Lower Mount TypeHousing
Extended Length24.21 in.
Collapsed Length (In)17.44 in.
Part FitmentDirect Fit
Internal DesignTwintube
FinishBlack Paint
Upper Mount TypeStem
Vendor Part NumberB521-030505
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
