F2X/F3X B58 Upper Radiator Hose Repair Kit V2

The factory upper radiator hose on B58-powered BMWs is a known weak point, often cracking at the plastic quick-connect fittings and leaving you stranded. This billet aluminum upgrade kit eliminates that failure point by replacing the fragile OEM connectors with a precision-machined, leak-proof alternative designed to last the life of the vehicle. This kit has been revised for high production volume while retaining the same quality at a lower cost.

Made from 6061 aluminum, our fittings are CNC-machined to exact OEM dimensions and anodized for corrosion resistance. Paired with a high-temp 4-ply silicone hose, this kit offers improved reliability, flow, and heat resistance over stock, perfect for daily drivers, track builds, and high-boost setups.

Products Fit

Manufacturer Name: BMW
Chassis Codes: F20 / F21 / F22 / F23 / F30 / F31 / F32 / F33 / F36
Models: 140i / 240i / 340i / 440i
Year: 2016–2019
Engine Type: B58B30

Kit Includes:

17 12 8 616 548 (Modified)
64 21 9 329 648 (Modified)
17 12 8 620 944 (Modified)
11 11 8 619 408 (Modified)

All of our kits are custom-built in Vancouver. We’ll notify you as soon as your order is ready to ship. If you need a faster turnaround, please contact us before purchasing.