Bilstein B4 OE Replacement Front Left Strut, front left strut with spring perch, angled view
Bilstein B4 OE Replacement Front Left Strut, front left strut with spring perch, rear angle view
Bilstein B4 OE Replacement Front Left Strut, front left strut with spring perch, angled view
Bilstein B4 OE Replacement Front Left Strut, front left strut with spring perch, rear angle view

Bilstein B4 OE Replacement Front Left Strut - BMW G2x 2019-2025

Bilstein SKU: BIL22-306609
Price
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Details

BrandBilstein
SKUBIL22-306609
GTIN / UPC651860860138
Manufacturer Part Number22-306609

Product Information

The Bilstein B4 OE Replacement strut is a direct replacement for the front left factory strut, engineered to restore original ride quality, handling and safety while meeting or exceeding OE standards. It is a twin-tube design with a base cup lower mount and stem upper mount, and it is specified for cars with the sport suspension and without electronic (adaptive) dampers. Backed by Bilstein's limited lifetime warranty.

Specifications

Type OE replacement strut (Bilstein B4)
Position Front left
Construction Twin-tube
Mounting Base cup lower, stem upper
Collapsed Length 388 mm
Extended Length 565.5 mm
Requirement Sport suspension without electronic suspension (M340i: without electronic suspension)
OEM Replacement 31316879305, 31316888455
Series B4 OE Replacement
Design Twintube
Upper Mount Stem
Lower Mount Base Cup
Finish Black Paint
Boot Included No
Spring Seat Included Yes - Fixed
Country of Origin Romania
Quantity per Vehicle 1
Quantity 1
Part Number 22-306609
Warranty Limited lifetime, original purchaser (authorized North American dealer, proof of purchase)

Documents: Installation Instructions (PDF)  |  Safety Data Sheet (PDF)

This part fits:

Year Make Model Submodel
2022-2025 BMW 230i Base
2021-2024 BMW 330e Base
2019-2024 BMW 330i Base
2021-2025 BMW 430i Base
2020-2024 BMW M340i Base

Shipping

  • In stock orders typically ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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