Bilstein B4 19-144221 Rear Shock Absorber/Damper for BMW 1 Series E81 E87 (2004-2011) – OE Spec Gas-Pressurised Twin-Tube Rear Axle Replacement for 116i 118i 120i 130i 116d 118d 120d 123d

Bilstein B4 19-144221 Rear Damper - BMW 1 Series E81 E87

Refresh the rear suspension on your BMW 1 Series hatchback with the Bilstein B4 19-144221. This OE-grade gas-charged two-tube shock is a direct-fit rear axle replacement for E81 and E87 models, delivering factory-spec control, confident stability and comfortable road manners without adding harshness.

If the back end of your 1-Series feels floaty, bouncy or unsettled, fitting fresh rear shockers makes a night-and-day difference. We run these Bilstein B4 units on our own cars and customer vehicles at MJ Modifications and the feedback is consistently brilliant - tighter body control, improved grip over uneven tarmac and a composed, stock-feel ride that inspires confidence in all weather.

Why this Bilstein unit is a winning choice

• Original equipment quality - restores that crisp, factory handling balance
• Gas-pressurised twin-tube construction - consistent damping on UK roads
• Direct replacement fitment - no modifications, no coding, just bolt on and drive
• Predictable braking and cornering - keeps the rear planted and secure
• Built to last - robust materials for long service life and reliability
• Perfect for daily driving - comfort and control for commuting and motorway miles

Technical details

Vehicle compatibility

Designed for BMW 1 Series hatchback chassis codes E81 and E87 with the following engine designations:

• Petrol - 116i, 118i, 120i, 130i
• Diesel - 116d, 118d, 120d, 123d

Common search terms that match this application include: BMW 1 Series E81 rear shocker, E87 rear suspension damper, back shock BMW 1-Series, BMW 118d rear suspension shock, BMW 123d rear damper unit, BMW 130i rear shock replacement, OEM-spec rear shock BMW 1 Series, gas-charged rear shock for BMW E81 E87, Bilstein B4 19 144221 rear shock.

Part numbers

• Bilstein Part Number: 19-144221
• EAN: 4025258592196
• UPC: 651860592091

Order with confidence

We can confirm fitment before dispatch. Add your UK registration or the last 7 characters of your VIN at checkout and our team will verify this rear damper suits your car.

Professional fitting available

Want it installed by specialists who know these cars inside out? MJ Modifications offers expert fitting in Warwickshire. Request a quote at info@mjmodifications.co.uk.

What you can expect

• Restored ride comfort with stock-like refinement
• Sharper response and better rear-end stability
• Durable, OE-level build quality from a trusted brand

Extra search phrases used by buyers: BMW 1 Series rear shock unit, BMW E81 E87 rear shock absorber replacement, rear damper cartridge BMW hatchback, rear suspension shock BMW 1-Series petrol and diesel, standard ride height shock BMW, OEM quality rear shock BMW 1 Series, Bilstein B4 rear unit for E81 E87, BMW 116i 118i 120i 130i rear shock, BMW 116d 118d 120d 123d rear damper, BMW 1er rear shock absorber.