Coolant Port Fitting Upgrade for BMW
This heavy-duty billet aluminum fitting is a direct replacement for the weak plastic factory coolant fitting which is prone to cracking and failure especially during disassembly. Replaces OEM part number 1537541992, 11537544638.
• N54 3.0L twin-turbo motors 135i, 335i, 335xi
• N53 (3.0L non-turbo motors)
• 2006 - 2010 325i, 330i, 525i, 525xi, 528i, 528xi, 530i, 530xi / N52 X3 / N20 (2.0L turbo) Z4 2013 & up
(1) Billet Aluminum Coolant Port Fitting
(1) Heavy-duty o-ring
(1) Stainless steel hose clamp