{"product_id":"csf-bmw-n55-high-performance-race-spec-engine-oil-cooler-upgrade-m135i-m235i-m235ir-335i-435i","title":"CSF 8145 BMW N55 Oil Cooler \/ Oil Radiator Upgrade Kit – High-Performance Direct-Fit Heat Exchanger, Drop-In Plug \u0026 Play (F20 F21 F22 F23 F30 F31 F32 F33 F34 F36) – Fits M135i M235i 335i 435i – Replaces OEM 17217618360 – Trackday\/Race Cooling Upgrade","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eCSF 8145 Uprated Oil Radiator for BMW F-Series N55 – Race-bred, plug-and-play cooling solution\u003c\/h2\u003e\n\n  \u003cp\u003eBeat heat soak and protect your turbocharged straight-six with the CSF 8145 high-efficiency oil heat exchanger. If you push your M135i, M235i, 335i or 435i on fast road or trackdays, you know lubricant temps can climb past 130°C under sustained load. This CSF unit is a proven, direct-replacement upgrade that consistently delivers around a 5 to 10 °C reduction in oil temperature, keeping performance stable and helping extend engine life.\u003c\/p\u003e\n\n  \u003cp\u003eWe’ve installed and run this cooler on our own cars and for numerous customer builds. Feedback is excellent: cooler running, stronger consistency session after session, and confidence when driving hard in hot weather. Built by CSF Radiators and lifetime-warrantied, it is the dependable, bolt-on answer for F-series N55 heat management.\u003c\/p\u003e\n\n  \u003ch3\u003eKey reasons enthusiasts choose CSF 8145\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eEndurance-proven on Hittman Racing’s M235iR race car for real-world reliability\u003c\/li\u003e\n    \u003cli\u003eMeaningful oil temp drop of roughly 5 to 10 °C depending on conditions\u003c\/li\u003e\n    \u003cli\u003eGenuine plug-and-play fit with no cutting or trimming – replaces factory unit\u003c\/li\u003e\n    \u003cli\u003eHigh-density, multi-louvred fin core for superior heat rejection\u003c\/li\u003e\n    \u003cli\u003eSmart two-core in-series layout converted to an M2 style single-pass with a high-pressure return line for improved efficiency\u003c\/li\u003e\n    \u003cli\u003eBacked by the CSF Lifetime Warranty for peace of mind\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCSF high-performance oil cooler assembly\u003c\/li\u003e\n    \u003cli\u003eInnovative dual-core architecture with single-pass M2 style flow path\u003c\/li\u003e\n    \u003cli\u003eHigh-efficiency fin pack\u003c\/li\u003e\n    \u003cli\u003eDirect-fit hardware for an OEM-like installation\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n  \u003cp\u003eDesigned for BMW F-series models with the N55 engine, including xDrive where noted:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 Series F20 135i(x) 2011–2016\u003c\/li\u003e\n    \u003cli\u003e1 Series F21 M135i(x) 2011–2016\u003c\/li\u003e\n    \u003cli\u003e2 Series F22\/F23 M235i(x) 2012–2016\u003c\/li\u003e\n    \u003cli\u003e2 Series F22\/F23 M235i Racing MS BMW Sport 2012–2016\u003c\/li\u003e\n    \u003cli\u003e3 Series F30\/F31 335i(x) 2011–2015\u003c\/li\u003e\n    \u003cli\u003e3 Series F34 GT 335i(x) 2012–2016\u003c\/li\u003e\n    \u003cli\u003e4 Series F32\/F33\/F36 435i(x) 2012–2016\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003eIf you own an N55-powered 1 Series, 2 Series, 3 Series or 4 Series in the F20, F21, F22, F23, F30, F31, F32, F33, F34 or F36 chassis, this CSF 8145 oil radiator is the direct-fit, performance-focused upgrade you want.\u003c\/p\u003e\n\n  \u003ch3\u003ePart numbers and warranty\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCSF Part Number:\u003c\/strong\u003e 8145\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect replacement for BMW OEM:\u003c\/strong\u003e 17217618360\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e CSF Lifetime Warranty\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation and support\u003c\/h3\u003e\n  \u003cp\u003eProfessional fitting available at MJ Modifications in Warwickshire. For a fitting quote or technical advice, email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e. This is a straightforward, plug-in swap for the factory cooler.\u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility check\u003c\/h3\u003e\n  \u003cp\u003eTo ensure perfect fitment before dispatch, add your UK registration or the last 7 of your VIN at checkout and we will confirm compatibility.\u003c\/p\u003e\n\n  \u003ch3\u003ePopular search phrases\u003c\/h3\u003e\n  \u003cp\u003eBMW N55 uprated oil radiator, F-series oil heat exchanger, M135i lubrication cooler, M235i performance oil cooler UK, 335i oil temp solution, 435i trackday cooling upgrade, F20 F21 F22 F23 F30 F31 F32 F33 F34 F36 oil radiator, CSF 8145 cooler, BMW straight-six turbo oil cooler, plug-and-play oil cooler for F-series, OEM replacement 17217618360 cooler, high-efficiency multi-louvred fin oil cooler, single-pass oil cooler upgrade, UK BMW performance cooling.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"CSF Radiators","offers":[{"title":"Default Title","offer_id":56005764514178,"sku":null,"price":732.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/CSFBMWN55High-performanceRace-specEngineOilCoolerUpgrade_M135I_M235I_M235IR_335I_435I_1_1946x_13d8da2d-f67b-4140-9dfc-5ec8551541a2.jpg?v=1764022200","url":"https:\/\/mjmodifications.co.uk\/products\/csf-bmw-n55-high-performance-race-spec-engine-oil-cooler-upgrade-m135i-m235i-m235ir-335i-435i","provider":"MJ Modifications","version":"1.0","type":"link"}