Bilstein B1 Control Arm Bushing Kit for B8 Control Arms - B4-KT1-Z458A00

This is Bilstein's B1 service kit for rebuilding the bushings in a pair of Bilstein B8 control arms. It contains eight bushing halves, four sleeves, and a packet of grease, enough to service four bushing locations, or one complete pair of arms. The parts are direct replacements for the bushings originally installed in those arms, so a worn set can be refreshed instead of replacing the control arm outright.

Specifications

Documents: Installation Instructions (PDF)  |  Warranty (PDF)

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• 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-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy