Description: This product is an OEM replacement for the plastic fitting on BMW PN 11537541992 and 11537544638. This aluminum coolant fitting is designed and manufactured to precise tolerances to fit the OEM application but with notable improvements in function. This product is made from high strength aerospace aluminum,Grade 6061 T6511. In addition to this, the coolant flow path through the center of the fitting is optimized to maximize coolant flow. This fitting is a direct replacement for the stock plastic fitting with no modification to any part of the system necessary Specification: Color:Black Size:8.5x8.5x6.5cm/3.35x3.35x2.56inch Suitable for 3.0L twin-turbo N54 (3.0-litre twin turbo) motors 335i, 335xi, 135i and the N53 (3.0-litre non-turbo) 2006 - 2010 325i, 330i, 525i, 525xi, 528i, 528xi, 530i, 530xi and the N20 (2.0-litre turbo) Z4 2013-, and the N52 X3 There are no sharp corners on this fitting so that the coolant will not be disrupted as it passes through. 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. Package Includes: 1 x Water Hose Fitting Replacement Note: Due to manual measurement, there may be 1-2mm error in size. Due to the difference between different monitors,the picture may not reflect the actual color of the item
