F2X/F3X B48 Upper Radiator Hose Repair Kit

The factory upper radiator hose on B48-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: 130i / 230i / 330i / 430i
Year: 2016–2019
Engine Type: B58B30

Kit Includes:

1 712 8 616 528 (Modified) Note: shown in two pieces
1 712 8 620 944 (Modified)
6 421 9 329 645(Modified)
1 111 8 511 205 (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.