Bilstein 21-031144 Suspension Strut Cartridge - Front
OE Quality 60-Day Returns
Bilstein
 B4 OE Replacement

Bilstein 21-031144 Suspension Strut Cartridge - Front

Brand Bilstein 21-031144
Position Front
Boot Included No
Finish Black paint
Internal Design Twintube
Lower Mount Type Special
Series B4 oe replacement
Title Bilstein shock absorbers
Upper Mount Type Stem
Product line B4 OE Replacement
Fits BMW · 15 vehicles

OE replacement. Maintains original ride quality while meeting or exceeding OE standards.

Twintube design. Helps restore original performance and handling with consistent damping.

Black paint finish. Adds a clean, durable look to the strut cartridge.

Cross-references 31 32 1 139 401, 31 32 1 139 403 and 110 990 for the same application. See all 6.

$145.89Free shipping
Out of stock
Step 1 — Confirm fitment
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Step 2 — Quantity
Suspension Strut Cartridges are typically replaced in pairs, axle by axle.
Order total $145.89
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Suspension Strut Cartridge options

Bilstein B4 OE Replacement Front Strut Cartridge

The Bilstein B4 OE Replacement suspension strut cartridge is built to restore original ride quality and handling on select BMW 7 Series models. This front cartridge is engineered to meet or exceed OE standards while preserving the factory driving feel.

Key Features

  • Bilstein B4 OE Replacement series for OE-style ride restoration
  • Twintube internal design for consistent damping response
  • Black paint finish
  • Stem upper mount type with special lower mount type
  • Front suspension strut cartridge for select BMW applications
  • Boot not included

Product Details

Bilstein B4 OE Replacement dampers are developed for drivers who want to return the vehicle to its original suspension behavior without changing the factory character. This Bilstein Shock Absorbers part number 21-031144 is a front suspension strut cartridge for BMW 735i, 735iL, 740i, 740iL, and 750iL models with standard suspension configurations. It is a direct-fit OE replacement solution for maintaining controlled ride quality and predictable handling on the road. This part cross-references Monroe Shocks & Struts (e.g., 110 990, PNE-3114) for the same application.

What It Helps Address

  • Excessive front-end bounce or oscillation
  • Reduced steering stability over uneven pavement
  • Worn original strut damping on aging BMW 7 Series vehicles
  • Loss of factory ride comfort and road control
  • Front suspension response that no longer matches OE behavior

Installation Notes and Fitment

Compatible With front applications only. Fits 1993-1994 BMW 740i, front, without electronic suspension; B4 OE Replacement. Fits 1993-1994 BMW 740iL, front, without electronic suspension; B4 OE Replacement. Fits 1991-1994 BMW 750iL, front, without electronic suspension; B4 OE Replacement. Fits 1991-1992 BMW 735i, front, without electronic suspension; B4 OE Replacement. Fits 1991-1992 BMW 735iL, front, without electronic suspension; B4 OE Replacement. Fits 1990 BMW 735i, front, without electronic suspension from 7/1990; B4 OE Replacement. Fits 1990 BMW 735iL, front, without electronic suspension from 7/1990; B4 OE Replacement. Fits 1990 BMW 750iL, front, without electronic suspension from 7/1990; B4 OE Replacement. Verify suspension type before ordering, since this cartridge is specified for vehicles without electronic suspension.

Quality Assurance

Bilstein B4 OE Replacement dampers are engineered to meet or exceed OE standards and are backed by Bilstein’s established suspension manufacturing quality.

Related reading

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
1994BMW740iBaseFrontWithout Electronic Suspension; B4 OE Replacement
1994BMW740iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1994BMW750iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1993BMW740iBaseFrontWithout Electronic Suspension; B4 OE Replacement
1993BMW740iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1993BMW750iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1992BMW735iBaseFrontWithout Electronic Suspension; B4 OE Replacement
1992BMW735iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1992BMW750iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1991BMW735iBaseFrontWithout Electronic Suspension; B4 OE Replacement
1991BMW735iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1991BMW750iLBaseFrontWithout Electronic Suspension; B4 OE Replacement
1990BMW735iBaseFrontWithout Electronic Suspension from 7/1990; B4 OE Replacement
1990BMW735iLBaseFrontWithout Electronic Suspension from 7/1990; B4 OE Replacement
1990BMW750iLBaseFrontWithout Electronic Suspension from 7/1990; B4 OE Replacement
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
31 32 1 139 40131 32 1 139 403110 990F4-PNE-3114-BCF4-PNE-3114-BGPNE-3114