For the Porsche Cayenne (9Y0 / E3 Generation, 2019–2026), the part number 9Y3860019B (also written as 9Y3-860-019-B) refers to the Roof Transport System Main Support.

While often called “roof rails,” this is actually the Cross-Bar Set (two lockable aluminum bars) that mounts horizontally across the roof to support carriers for bikes, skis, or roof boxes.

1. Technical Specifications

• Vehicle Fitment: Specifically designed for the Cayenne Coupé (9Y3 / 9YA).

• Design: Two aerodynamic, lockable cross-bars made of high-strength aluminum.

• Load Capacity: Maximum permissible roof load of $75\text{ kg}$ ($165\text{ lbs}$).

• Weight: The system itself is lightweight, weighing only approximately $5\text{ kg}$ ($11\text{ lbs}$).

• Security: Integrated anti-theft protection with locks on each carrier leg.

2. Compatibility Check: Coupé vs. SUV

This part number is the “Coupe-specific” version of the roof rack.

• Cayenne Coupé: Does not require longitudinal roof rails to be installed first. The 9Y3860019B mounts directly into the factory points on the Coupé’s roof.

• Cayenne SUV (Standard): If you have the standard SUV body style, you typically need part number 9Y0860019, and the car must be equipped with factory longitudinal roof rails for the cross-bars to attach to.