Bilstein B4 19-135021 Rear Shock Absorber / Damper / Strut for BMW 3 Series E90 E91 E92 (E9x) RWD & xDrive AWD - OEM OE-Spec Gas Pressure Twin-Tube Back Shocker, Standard Height Replacement - Saloon Touring Coupe 316d-335i 335d

Bilstein 19-135021 OEM-Spec Rear Suspension Damper for BMW 3 Series E90 E91 E92

Bring your BMW back to its best with Bilstein part number 19-135021. This rear suspension damper is a gas-charged, twin-tube unit built to original equipment standards for the E90 Saloon, E91 Touring and E92 Coupé. It delivers the crisp control, comfort and stability you expect from a fresh factory-spec shock, making it ideal when your back end feels floaty, bouncy or unsettled.

At MJ Modifications we have installed many of these units on customer cars and our own vehicles. Feedback is consistently positive: tighter body control, reduced wallow and a confident, composed ride on UK roads. If you want stock-feel handling with dependable quality, this Bilstein rear damper is a proven choice.

Why this rear damper stands out

• OEM-quality replacement for tired rear shocks on BMW 3 Series E9x
• Gas-charged twin-tube design for consistent damping and safety
• Restores factory ride comfort, grip and braking stability
• Excellent road holding on broken tarmac and motorway runs
• Built by Bilstein for durability and long service life
• Perfect for daily driving, commuting and spirited country lanes

Technical details

• Position: Rear axle
• Type: Gas pressure
• Construction: Twin-tube
• Spring seat: Does not carry a coil spring
• Mounting: Top pin, bottom pin

Vehicle fitment

For BMW 3 Series on the E9x platform, rear-wheel drive and xDrive all wheel drive. Petrol and diesel variants covered as listed below.

• E90 Saloon
  • 316i, 318i, 320i, 320si, 323i, 325i, 325xi, 325i xDrive, 328i, 328xi, 328i xDrive, 330i, 330xi, 330i xDrive, 335i, 335xi, 335i xDrive
  • 316d, 318d, 320d, 320d xDrive, 325d, 330d, 330xd, 330d xDrive, 335d
• E91 Touring Estate
  • 316i, 318i, 320i, 323i, 325i, 325xi, 325i xDrive, 328i, 328xi, 328i xDrive, 330i, 330xi, 330i xDrive, 335i, 335xi, 335i xDrive
  • 316d, 318d, 320d, 320d xDrive, 325d, 330d, 330xd, 330d xDrive, 335d
• E92 Coupé
  • 325i xDrive, 325xi, 328xi, 328i xDrive, 330xi, 330i xDrive, 335i xDrive, 335xi
  • 320d xDrive, 330xd, 330d xDrive

What you will feel on the road

• Cleaner control over bumps and potholes
• Improved rear-end stability under acceleration and braking
• Reduced body movement for precise, predictable handling
• Comfortable, stock-height ride when used with OE springs

Identifiers

• Part number: 19-135021
• SKU: BILSTEIN-19-135021
• EAN: 4025258573331
• UPC: 651860573335

Installation and support

Need it fitted properly first time? Book professional installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk to request a fitting quote.

Free compatibility check available before dispatch. Add your UK registration or last 7 digits of your VIN at checkout so we can confirm this rear damper suits your vehicle.

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