{"product_id":"bmw-1-series-oil-filter-housing-gasket-oem-part-no-11427525333-fixes-oil-leaks-prevents-belt-contamination-fits-bmw-e81-e82-e87-e88-f20-f21-2005-2016","title":"BMW 1 Series Engine Oil Cooler \/ Oil-to-Coolant Heat Exchanger – OEM Part No. 11427525333 – Stabilizes Oil Temperatures \u0026 Restores Factory Heat Exchange Efficiency | Fits BMW E81, E82, E87, E88, F20 \u0026 F21 (2005–2016)","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eRestore stable oil temperatures and protect your engine under daily driving and boost\/heat-load conditions with this OEM-style Engine Oil Cooler (Heat Exchanger), designed for BMW applications that use OEM Part No. 11427525333. \u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe engine oil cooler is responsible for regulating oil temperature by transferring heat away from the engine oil through the cooling system. When the oil cooler becomes restricted internally, begins to leak, or suffers seal failure, oil temperatures can climb and oil\/coolant cross-contamination risks increase—leading to reduced lubrication performance, warning lights, and long-term engine wear.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eCommon failure symptoms include oil seepage at the cooler housing, coolant loss without an obvious external leak, oil residue around the heat exchanger, and temperature instability under load. Because this component interfaces with both the oil circuit and cooling system, correct fitment and proper sealing are critical.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis replacement unit is built to OEM mounting and flow specifications, designed to match factory hose routing and connection geometry. When installed correctly with appropriate seals and fresh coolant, it restores proper oil temperature control and helps prevent the cascading problems that can come from overheating oil or leaks in the heat exchanger assembly. \u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p5\"\u003e\u003cb\u003eKey Benefits\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p6\"\u003eDirect replacement for BMW Engine Oil Cooler \/ Heat Exchanger – 11427525333 \u003cspan class=\"s1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"p6\"\u003eHelps stabilize oil temperatures and maintain consistent lubrication\u003c\/li\u003e\n\u003cli class=\"p6\"\u003eAddresses common oil cooler leakage and heat exchanger failures\u003c\/li\u003e\n\u003cli class=\"p6\"\u003eOEM-style fitment for factory mounting points and connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p5\"\u003e\u003cb\u003eInstallation Notes\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p6\"\u003eReplace all required seals\/gaskets\/O-rings during installation (cooler-to-housing and coolant connections as applicable).\u003c\/li\u003e\n\u003cli class=\"p6\"\u003eAfter installation, bleed the cooling system properly and verify no oil\/coolant leaks.\u003c\/li\u003e\n\u003cli class=\"p6\"\u003eVIN verification is required, since BMW cooling\/oil heat exchanger configurations can vary by engine, production date, and chassis even within the same series.\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eFITMENT: BMW 1 Series – E81, E82, E87, E88, F20, F21 (2005–2016) Including\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eE-Chassis (RWD Platform)\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p4\"\u003e128i Coupe (E82) – N52 3.0L\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e128i Convertible (E88) – N52 3.0L\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e130i Hatchback (E81, E87) – N52 3.0L\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e135i Coupe (E82) – N54 \/ N55 3.0L Turbo\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e135i Convertible (E88) – N54 \/ N55 3.0L Turbo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eF-Chassis (RWD Platform)\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p4\"\u003e125i Hatchback (F20, F21) – N20 2.0L Turbo\u003c\/li\u003e\n\u003cli class=\"p4\"\u003eM135i Hatchback (F20, F21) – N55 3.0L Turbo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p4\"\u003eVIN verification required.\u003c\/p\u003e","brand":"BAVMODS","offers":[{"title":"Default Title","offer_id":45761308786878,"sku":null,"price":96.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8788\/1150\/files\/Sd7826afab361478fbb6db166aecd74a0r_jpg_960x960q75_jpg.avif?v=1767747199","url":"https:\/\/bavmods.com\/products\/bmw-1-series-oil-filter-housing-gasket-oem-part-no-11427525333-fixes-oil-leaks-prevents-belt-contamination-fits-bmw-e81-e82-e87-e88-f20-f21-2005-2016","provider":"BAVMODS®","version":"1.0","type":"link"}