AMCC Aluminum Upgrade Coolant Hose Flange Compatible with BMW 2006-2016 Engine L4 L6 N46 N52 N54 N55 N52 1 2 3 4 5 X1 X3 X4 X5 X6 Z4 F20 E84 228i 320i 328i 428i 528i Replaces: 11537603514 11537544638 Upgraded replacement - this thermostat hose flange repair kit includes a stronger aluminum flange to prevent future leaks Convenient kit - comes with flange, O-ring and clamp for complete repair of failed coolant junction Reference Number:11537544638,11537522339,11537580969，11537545890，11537603514，11537649409，11537541992，11537566329，11537550062，11537584549，11537585023，11537592095，11537581063，11537560363，11537605151，11537591889 AMCC offers a one-year unlimited-mileage guarantee on our meticulously crafted. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind