This is an OEM replacement for the plastic fitting on BMW with part number 11537541992 and 11537544638.
This hose runs from the coolant thermostat housing to the front of the head. The plastic fitting on this hose is a known weak spot in the coolant system as it commonly cracks and leaks.
The ideal solution to the problem is to replace the fitting with one that will never wear-out, crack or leak. This aluminum fitting is a direct replacement for the stock plastic fitting with no modification to any part of the system necessary
Gloss Black unit provides OEM Aesthetics
Compatible with the following BMW engines
N54 - 135i/335i
N55 - 135i/335i
N52/N53 - 323i/325i/330i
N20 - 120i/125i/320i/328i (4 Cylinder)
What's in the box
1 x Aluminum (Black) Water Hose Fitting
1 x O-ring
1 x Clamp
