Bilstein 19-144221 B4 OE Replacement Rear Shock Absorber for BMW 1 Series E81 E87
Looking to restore factory ride quality and handling on your BMW 1 Series E81 or E87? The Bilstein B4 Rear Shock Absorber 19-144221 is the go-to OE replacement rear damper for BMW owners who want original performance, safety and comfort. This gas-pressure twin-tube rear shock is engineered to match BMW OE specifications for consistent damping, precise handling and long-term durability.
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Why choose the Bilstein B4 rear shock for your BMW 1 Series?
- OE replacement performance that brings your BMW back to day-one feel
- Bilstein gas-pressure technology for high traction and precise handling
- Constant damping power under load for confident braking and cornering
- High power reserves for maximum safety on real roads
- High OE quality build for durability and long service life
- Perfect for daily driving and keeping your 1 Series tight, composed and comfortable
We use Bilstein B4 shocks on our own cars and customer builds, and feedback has been consistently positive: improved control, reduced bounce and a genuine OE ride feel. If your BMW 1 Series feels floaty or unsettled, replacing tired rear dampers with Bilstein B4 is a proven fix that keeps things stock-plus without harshness.
Key specifications
| Fitting Position | Rear Axle |
| Shock Absorber Type | Gas Pressure |
| Shock Absorber System | Twin-Tube |
| Shock Absorber Design | Absorber does not carry a spring |
| Mounting Type | Top pin, Bottom pin |
Direct fitment compatibility
BMW 1 Series applications covered by Bilstein 19-144221 include:
- BMW 1 Series E81
- BMW 1 Series E87
- Engine variants: 116i, 118i, 120i, 130i, 116d, 118d, 120d, 123d
Search terms people use for this fitment: BMW E81 rear shock absorber, BMW E87 rear damper, BMW 1 Series rear shock replacement, 118i rear shock, 120d rear damper, 123d rear shock, 130i rear shock, Bilstein B4 BMW rear shock, OE spec BMW 1 Series shock absorber.
Part numbers and identifiers
- Bilstein Part Number: 19-144221
- Nforcd Part Number: BILSTEIN-19-144221
- EAN: 4025258592196
- UPC: 651860592091
Compatibility check
We verify compatibility before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout and our team will confirm this Bilstein B4 19-144221 rear shock fits your BMW 1 Series E81 or E87.
Professional fitting available
Want it fitted by experts? Nforcd offers professional installation in Warwickshire. Request a fitting quote at Sales@nforcd.com and our team will get you booked in.
What this product delivers
- Restores factory ride comfort and OE handling balance
- Reliable, consistent damping for everyday UK road conditions
- Confidence-inspiring stability without adding harshness
- Trusted Bilstein build quality with a proven track record
If you are searching for BMW 1 Series rear shock absorber E81 E87, Bilstein B4 rear damper BMW, BMW 118i rear shock replacement, BMW 123d rear shock absorber or BMW 130i rear damper, this 19-144221 unit is the correct OE-spec solution to get your car driving like it should.