This innovative coolant vent line from Rogue Engineering is CNC machined from solid aluminum and uses a 45 degree brass elbow.
Replaces the failure prone stock plastic coolant vent line fitting.
Great for non-M cars when converting to an M3 style coolant expansion tank setup.
Replaces BMW part number 17112229053
Includes hose, crimped to fitting, and a clamp to secure to the factory overflow tank.
