What it is
This is the genuine Ford OEM banjo bolt for the turbocharger coolant line on the Focus ST and other EcoBoost-equipped vehicles. Fitment is for turbo only, not engine block side.
Part details
- OEM Part Number: W715499-S900
- Fits: Ford Focus ST 2013–2018 and select other EcoBoost models
- Material: Steel with factory finish
- Sealing: Recommended to use crush washers on both sides of the banjo fitting (available separately)
Why you might need one
Banjo bolts are a common source of coolant seeps, especially when the crush washers are reused during service. If you're pulling the turbo for a seal replacement, gasket job, or any other reason, it's worth swapping this bolt and the washers at the same time. Since this is a genuine Ford part, thread pitch, torque specs, and materials are exactly what the factory intended.
Installation notes
Always use new crush washers on both sides of the banjo fitting when reinstalling — reusing old ones is the most common cause of leaks after a turbo service. Torque to Ford's factory specification for your application. Over-tightening can crack the banjo fitting or damage the threads in the turbo housing, so don't skip the torque wrench on this one.
Common use cases
- Turbocharger removal and reinstallation
- Coolant leak repair at the turbo water fitting
- Preventive replacement during a turbo seal or gasket service