Bilstein B4 19-020174 Rear Shock Absorber/Strut for BMW E28 5 Series (1981-1987) & E24 6 Series (1975-1989) | OEM OE Replacement Gas-Pressure Twin-Tube Rear Damper | Fits 518 520i 525e 525i 528i 533i 524d/td 628CSi 633CSi 635CSi

Bilstein B4 Rear Damper 19-020174 for BMW E28 and E24 - OEM-spec direct fit

Bring your classic BMW’s rear suspension back to its best with this high quality Bilstein B4 rear unit, part number 19-020174 (BILSTEIN-19-020174). Engineered for the BMW 5 Series E28 and BMW 6 Series E24, this gas-charged twin tube rear damper restores that factory-spec control, smooth ride and confidence you expect from a well-sorted chassis.

Looking for a BMW E28 rear strut, BMW E24 back shock, E28 rear suspension replacement, 635CSi rear damper, or a direct-fit BMW 5 Series rear shock for 1981 to 1987 models and BMW 6 Series rear shock for 1975 to 1989 models? This is the correct part. We have fitted and supplied these on numerous restorations and refreshes, and customers consistently praise the improvement in comfort, stability and road holding on UK roads.

Why this rear suspension upgrade works

• Direct-fit, factory-spec solution that keeps original ride height and character
• Gas-charged twin tube design for consistent damping and reduced fade
• Sharper body control under braking and cornering with improved composure
• Refines ride quality while maintaining classic BMW steering feel
• Built to original equipment standards for dependable longevity

Compatible BMW models

BMW 5 Series E28 - 05.1981 to 12.1987:

• 518, 518i
• 520i
• 525i, 525e
• 528i
• 533i
• 524d, 524td

BMW 6 Series E24 - 10.1975 to 04.1989:

• 628CSi
• 633CSi
• 635CSi

Technical information

• Position: Rear axle
• Type: Gas-charged
• Construction: Twin tube
• Design: Spring-bearing damper
• Mounts: Bottom eye, Top pin
• Parameter: 135/78

Note: Rear axle application. Check quantity required per vehicle before ordering.

Real-world results

From daily driving to long-distance touring, this Bilstein B4 rear damper brings back the balanced, planted feel of a healthy E24 or E28. Our customers report reduced float, tighter rear-end control and a more settled ride over rough B-roads without making the car harsh.

Fitting and support

Prefer professional installation? Book with MJ Modifications, Warwickshire for expert fitting and suspension setup. Request a quote at info@mjmodifications.co.uk.

Fitment check before dispatch

We verify compatibility prior to shipping. Add your UK registration or the last 7 digits of your VIN at checkout so we can confirm 19-020174 suits your exact BMW E24 or E28.

Part numbers and identifiers

• Main part number: 19-020174
• Alternative code: BILSTEIN-19-020174
• Manufacturer: Bilstein
• EAN: 4025258430511
• UPC: 651860430515

Search-friendly terms customers use

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