Bilstein B4 Rear Shock Absorber | OE Replacement | BMW 3 Series E21 315-323i & ALPINA B6/C1 (1975-1984) | Gas-Pressure Twin-Tube | Rear | Part 19-019802

Bilstein B4 Rear Shock Absorber | OE Replacement | BMW 3 Series E21 315-323i & ALPINA B6/C1 (1975-1984) | Gas-Pressure Twin-Tube | Rear | Part 19-019802

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Bilstein B4 Rear Shock Absorber - OE Replacement for ALPINA BMW E21 - Part Number BILSTEIN-19-019802

Restore factory-fresh ride quality, safety and control with the Bilstein B4 rear shock absorber for ALPINA and BMW E21. This genuine Bilstein gas-pressure twin-tube rear damper is the perfect OE replacement shock for classic BMW 3 Series E21 and ALPINA E21 models, delivering precise handling, high traction and dependable comfort on British roads. If you are searching for Bilstein B4 rear shock, BMW E21 rear shock absorber, ALPINA E21 rear damper, OE replacement rear shock, or gas-pressure twin-tube shock for E21, this is the part you need.

We use Bilstein B4 shocks on our own builds and our customers consistently report transformed ride comfort, stable cornering and confidence at speed. For a daily-driven classic or a well-sorted weekend car, the B4 keeps your E21 feeling tight and composed just as BMW intended.

Why choose Bilstein B4 for your E21

  • Direct OE replacement rear shock absorber for ALPINA BMW E21 applications
  • Gas-pressure technology for consistent damping under all loads
  • Twin-tube design for durable, OE-matched comfort and control
  • High power reserves for maximum safety and stability
  • Precise handling and improved traction on UK roads
  • Perfect for restoring original ride quality on classic E21 models

Key Features

  • High power reserves for maximum safety
  • Optimum driving experience as on day one
  • High OE quality
  • Constant damping power under any load
  • High traction and precise handling thanks to Bilstein gas-pressure technology
  • Comprehensive product range with high market coverage and availability

Technical Specifications

Part Number : BILSTEIN-19-019802
Position : Rear axle
Shock Absorber Design : Spring-bearing damper
Mounting Type : Bottom eye, top pin
System : Twin-tube
Type : Gas pressure
Manufactured by : Bilstein
EAN : 4025258430146
UPC : 651860430140

Vehicle Compatibility

Designed as an OE replacement rear shock absorber for the following ALPINA and BMW applications:

ALPINA

  • B6 (E21) 2.8 - 03.78 to 03.83
  • C1 (E21) 2.3 - 03.80 to 07.83

BMW 3 Series

  • 3 Series E21 - 06.75 to 03.84
    • 315, 316, 318, 318i, 320, 320i, 320/6, 323i

Compatibility Check

We will verify fitment before dispatch. Provide your UK registration number or the last 7 digits of your VIN at checkout and our team will confirm that BILSTEIN-19-019802 fits your vehicle.

Professional Fitting

Prefer expert installation? Book fitting with Nforcd in Warwickshire. Request a quote via Sales@nforcd.com and our team will take care of your E21 with the attention it deserves.

Buy with Confidence

Enthusiast approved. We have installed Bilstein B4 shocks on E21 projects and customers love the factory-correct ride, stability and confidence. Get dependable OE-level damping performance and keep your classic ALPINA BMW E21 driving at its best.

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