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Aluminium Water Hose Fitting Replacement - BMW 135I/335I N54
Aluminium Water Hose Fitting Replacement - BMW 135I/335I N54
Aluminium Water Hose Fitting Replacement - BMW 135I/335I N54
Aluminium Water Hose Fitting Replacement - BMW 135I/335I N54
Aluminium Water Hose Fitting Replacement - BMW 135I/335I N54

Aluminium Water Hose Fitting Replacement - BMW 135I/335I N54

$29.00

This products is an OEM replacement for the plastic fitting on BMW PN 11537541992 and 11537544638. It fits the N54, N53 and N52 3.0-litre motors. This BMW PN consists of a 25mm (1.0") hose and a plastic fitting. 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 fitting is a direct replacement for the stock plastic fitting with no modification to any part of the system necessary. Simply remove the end of the hose from the plastic fitting and then the fitting from the head (hose does not need to be removed from the thermostat housing to do this). Then install the replacement Aluminium fitting to the head and slide the hose and hose clamp over the fitting.  Fitting is machined from billet Aluminium 6061 T6511. 

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