Bilstein B4 Front Left (Nearside) Shock Absorber Strut 22-309631 BMW Z4 G29 2018-on sDrive20i/30i/M40i Toyota GR Supra A90/A91 2019-on 2.0/3.0 OE Replacement Gas Pressure Twin Tube

Bilstein 22-309631 Front Left Strut, OEM-Spec Replacement for BMW Z4 G29 and Toyota GR Supra A90 A91

Refresh your chassis with the Bilstein 22-309631 nearside front damper strut. This gas-charged, twin-tube unit is built to original equipment standards so you get factory-spec control, comfort and reliability. Ideal for sorting bouncy ride, knocking shocks or MOT advisories, it brings back crisp turn-in, stable body control and confidence on British roads without adding harshness.

We run these on our own cars and our customers love the result. Expect tight, predictable handling, secure braking stability and smooth ride quality that feels just like new. If you are searching for a direct-fit left-hand front shock for a G29 Z4 or A90 A91 Supra, this is the dependable, bolt-on solution.

Highlights

• OEM-quality replacement damper for stock suspension, engineered by Bilstein
• Gas-charged twin-tube design for consistent damping and dependable road holding
• Direct-fit nearside front suspension leg, no mods required
• Restores factory ride comfort and precise steering feel
• Perfect for daily use, touring and spirited B-road driving

Fitment and position

• Location: Front axle, left side, nearside front, NSF
• Type: Suspension strut, gas charged, twin-tube
• Mounting: Top pin

Vehicle applications

BMW

• Z4 Roadster G29, 2018 onward
  • sDrive20i
  • sDrive30i
  • M40i

Toyota

• Supra DB series A90 and A91, 2019 onward
  • 2.0
  • 3.0
  • GR Supra variants

Tech details

• Part number: 22-309631
• Alt part number: BILSTEIN-22-309631
• System: Twin-tube, gas charged
• Design: Strut
• EAN: 4025258863258
• UPC: 651860870458

Buy with confidence

MJ Modifications supplies genuine Bilstein parts that fit right first time. This strut is a straight swap for the original unit and is an excellent choice for a suspension refresh, addressing tyre wear issues, reducing float and improving stability in wet and dry conditions.

Install and alignment

Professional fitting recommended. MJ Modifications in Warwickshire offers expert installation and geometry setup for BMW and Toyota performance platforms. Request a fitting quote at info@mjmodifications.co.uk.

Replace in pairs

For balanced damping and even tyre wear, we advise changing both front shocks together. The matching offside front strut is Bilstein 22-309648.

Fitment check

Not sure it suits your car. We can confirm compatibility before dispatch using your UK registration or the last 7 digits of your VIN. Share your details at checkout and we will verify.

Common search terms

BMW Z4 G29 left front shock, G29 nearside strut, Z4 front damper replacement, Toyota Supra A90 left shocker, A91 nearside suspension leg, GR Supra NSF strut, OEM spec shock absorber, stock height replacement shock, direct-fit front damper, Bilstein B4 strut front left, gas charged twin tube shock for Z4 and Supra.

Add to basket today and restore the tight, composed feel your Z4 or GR Supra deserves.