{"product_id":"coolant-hose-fitting-repair-kit-bmw-n52-n53-n54-n55-n20-11537544638-aluminum","title":"Coolant Hose Fitting Repair Kit – BMW N51 \/ N52 \/ N53 \/ N54 \/ N55 \/ N20 \/ N26 | OEM 11537544638 | Aluminium","description":"\u003ch1\u003eCoolant Hose Fitting Repair Kit – BMW N51 \/ N52 \/ N53 \/ N54 \/ N55 \/ N20 \/ N26 | OEM 11537544638 | Aluminium\u003c\/h1\u003e\u003cp\u003eThe plastic coolant hose fitting (11537544638) on BMW N51, N52, N53, N54, N55, N20, and N26 engines is a well-known failure point — cracking with age and causing coolant leaks. This aluminium repair kit permanently replaces the plastic fitting with a durable aluminium unit, eliminating the risk of recurrence. BMW models with N51, N52, N52N, N53, N54, N55, N20, or N26 engine — verify fitting location before ordering\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits OEM #11537566329.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eWhen to Inspect This Part\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ewhistling or excessive crankcase vacuum\u003c\/li\u003e\n\u003cli\u003esmoke after warm-up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eRepair components supplied for this SKU and shown in the product photos; no complete surrounding assembly is included\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eOEM Part Numbers and Vehicle Fitment\u003c\/h2\u003e\u003ch3\u003eAdditional confirmed fitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBMW 1 SERIES M 2011\u003c\/li\u003e\n\u003cli\u003eBMW 128I 2008-2013\u003c\/li\u003e\n\u003cli\u003eBMW 135I 2008-2013\u003c\/li\u003e\n\u003cli\u003eBMW 135IS 2013\u003c\/li\u003e\n\u003cli\u003eBMW 228I 2014-2016\u003c\/li\u003e\n\u003cli\u003eBMW 320I 2012-2018\u003c\/li\u003e\n\u003cli\u003eBMW 323I 2006-2011\u003c\/li\u003e\n\u003cli\u003eBMW 325I 2006\u003c\/li\u003e\n\u003cli\u003eBMW 325XI 2006\u003c\/li\u003e\n\u003cli\u003eBMW 328I 2007-2016\u003c\/li\u003e\n\u003cli\u003eBMW 328XI 2007-2008\u003c\/li\u003e\n\u003cli\u003eBMW 330I 2006\u003c\/li\u003e\n\u003cli\u003eBMW 330XI 2006\u003c\/li\u003e\n\u003cli\u003eBMW 335I 2007-2016\u003c\/li\u003e\n\u003cli\u003eBMW 335IS 2011-2013\u003c\/li\u003e\n\u003cli\u003eBMW 335XI 2007-2008\u003c\/li\u003e\n\u003cli\u003eBMW 428I 2014-2016\u003c\/li\u003e\n\u003cli\u003eBMW 435I 2014-2016\u003c\/li\u003e\n\u003cli\u003eBMW 528I 2011-2016\u003c\/li\u003e\n\u003cli\u003eBMW 535I 2008-2016\u003c\/li\u003e\n\u003cli\u003eBMW 535I GT 2010-2017\u003c\/li\u003e\n\u003cli\u003eBMW 535XI 2008\u003c\/li\u003e\n\u003cli\u003eBMW 640I 2012-2018\u003c\/li\u003e\n\u003cli\u003eBMW 740I 2011-2015\u003c\/li\u003e\n\u003cli\u003eBMW 740LI 2011-2015\u003c\/li\u003e\n\u003cli\u003eBMW ACTIVEHYBRID 3 2013-2015\u003c\/li\u003e\n\u003cli\u003eBMW ACTIVEHYBRID 5 2012-2016\u003c\/li\u003e\n\u003cli\u003eBMW ACTIVEHYBRID 7 2013-2015\u003c\/li\u003e\n\u003cli\u003eBMW M2 2016-2018\u003c\/li\u003e\n\u003cli\u003eBMW M235I 2014-2016\u003c\/li\u003e\n\u003cli\u003eBMW X1 2012-2015\u003c\/li\u003e\n\u003cli\u003eBMW X3 2007-2017\u003c\/li\u003e\n\u003cli\u003eBMW X4 2015-2018\u003c\/li\u003e\n\u003cli\u003eBMW X5 2007-2018\u003c\/li\u003e\n\u003cli\u003eBMW X6 2008-2018\u003c\/li\u003e\n\u003cli\u003eBMW Z4 2006-2016\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePart Number \/ PN\u003c\/h2\u003e\u003cp\u003e11537566329, 11537560363, 11537592095, 11537552339, 11537550062, 11537578727, 11537545890, 11537591889, 11537605152, 11537649409, 11537598234, 11537585023, 11537541992, 11537580969, 11537581063, 11537544638, 11537584549, 11537603514, 11428637820, 11428637821, 7544789\u003c\/p\u003e\u003ch2\u003eImportant Fitment Check\u003c\/h2\u003e\u003cp\u003eBefore ordering, compare the part design, dimensions, connectors, and every available OEM\/P\/N marking with the part installed on the vehicle. Matching OEM\/P\/N 11537566329 is the primary fitment check.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eHow do I confirm fitment for this Coolant Hose Fitting Repair Kit?\u003c\/h3\u003e\u003cp\u003eCompare the exact OEM\/P\/N and physical design with the installed part. The primary reference is 11537566329. Do not select the part by vehicle model alone.\u003c\/p\u003e\u003ch3\u003eWhat symptoms may indicate a problem with this Coolant Hose Fitting Repair Kit?\u003c\/h3\u003e\u003cp\u003eConfirmed symptoms include whistling or excessive crankcase vacuum, smoke after warm-up. Diagnose the original assembly before ordering so another fault is not mistaken for this part.\u003c\/p\u003e\u003ch3\u003eWhat is included with this Coolant Hose Fitting Repair Kit?\u003c\/h3\u003e\u003cp\u003eThe confirmed kit contents are: Repair components supplied for this SKU and shown in the product photos; no complete surrounding assembly is included.\u003c\/p\u003e\u003ch3\u003eDoes this listing include the complete surrounding assembly?\u003c\/h3\u003e\u003cp\u003eNo. It includes only the item or repair components identified for this SKU. Inspect related parts separately and replace them only when diagnosis confirms a fault.\u003c\/p\u003e\u003ch3\u003eWhat should be checked before installation?\u003c\/h3\u003e\u003cp\u003eCheck the OEM\/P\/N, dimensions, connectors, orientation, and condition of the mating components. Installation should follow the correct service procedure for the specific vehicle and assembly.\u003c\/p\u003e","brand":"Klifex","offers":[{"title":"Default Title","offer_id":53492975534394,"sku":"KL11537544638","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/7207\/7626\/files\/2906925711_w640_h640_remkomplekt-patrubka-sistemy.jpg?v=1779367665","url":"https:\/\/klifex.net\/products\/coolant-hose-fitting-repair-kit-bmw-n52-n53-n54-n55-n20-11537544638-aluminum","provider":"Klifex – Automotive Repair Kits","version":"1.0","type":"link"}