{"product_id":"dorch-engineering-bmw-n55-o-ring-inc-m2-135i-m235i-435i","title":"Dorch Engineering BMW N55 HPFP O-Ring Seal – Stage 1 \u0026 Stage 2 High Pressure Fuel Pump Replacement for M2, 135i, M135i, M235i, 335i, 435i, 535i, X1\/X3\/X4\/X5\/X6 35i","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \n  \u003ch2\u003eSeal Ring for Dorch N55 Upgraded High-Pressure Pump\u003c\/h2\u003e\n  \u003cp\u003e\n    Restore perfect sealing on your turbocharged N55 straight-six with this authentic Dorch Engineering seal ring for the Stage One and Stage Two upgraded high-pressure pump. A fresh sealing ring keeps fuel pressure stable, helps prevent petrol smells and seepage, and supports smooth starts and crisp throttle response on both daily drivers and hard‑used track cars.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    We use these in our own builds and our customers love the reliability. It is the small, low-cost part that protects your fuel system investment and keeps your tuned BMW performing as it should.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eWhy this seal ring is a must-have\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDirect-fit sealing ring for the Dorch N55 Stage 1 and Stage 2 upgraded pump\u003c\/li\u003e\n    \u003cli\u003eMaintains consistent fuel rail pressure under load for dependable performance\u003c\/li\u003e\n    \u003cli\u003eHelps stop leaks and fuel odour caused by a tired or flattened O-ring\u003c\/li\u003e\n    \u003cli\u003ePerfect to install whenever the high-pressure pump is removed or serviced\u003c\/li\u003e\n    \u003cli\u003eWorkshop tested by MJ Modifications with excellent long-term feedback\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eWhat you receive\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Dorch Engineering pump seal ring for N55 upgraded high-pressure pump\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eCompatible BMW models with the N55 engine\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eF87 M2\u003c\/li\u003e\n    \u003cli\u003eF20 F21 M135i M135ix\u003c\/li\u003e\n    \u003cli\u003eF22 F23 M235i M235ix\u003c\/li\u003e\n    \u003cli\u003eF30 F31 F34 335i 335ix\u003c\/li\u003e\n    \u003cli\u003eF32 F33 F36 435i 435ix\u003c\/li\u003e\n    \u003cli\u003eF10 F11 535i 535ix\u003c\/li\u003e\n    \u003cli\u003eF25 F26 X3 35ix X4 35ix\u003c\/li\u003e\n    \u003cli\u003eF15 F16 X5 35i 35ix X6 35i 35ix\u003c\/li\u003e\n    \u003cli\u003eE82 E88 135i\u003c\/li\u003e\n    \u003cli\u003eE90 E91 E92 E93 335i 335xi\u003c\/li\u003e\n    \u003cli\u003eE84 X1 35ix\u003c\/li\u003e\n    \u003cli\u003eE70 E71 X5 35i 35ix X6 35i 35ix\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\n    Not sure if this is right for your car? Send us your reg or last 7 of VIN and we will confirm before dispatch.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eFitting service\u003c\/h3\u003e\n  \u003cp\u003e\n    Professional installation is recommended for any high-pressure fuel component. Book fitting with MJ Modifications in Warwickshire. Request a quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003ePre-shipment compatibility check\u003c\/h3\u003e\n  \u003cp\u003e\n    We verify fitment prior to shipping. Add your UK registration or the final 7 characters of your VIN at checkout so we can ensure you receive the correct N55 pump seal ring.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eManufacturer and warranty\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Dorch Engineering\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e: Dorch Engineering Lifetime Warranty\u003c\/p\u003e\n  \n  \u003ch3\u003eAlso searched as\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW N55 fuel pump seal ring, N55 injection pump O-ring, Dorch Stage 1 pump seal, Dorch Stage 2 pump seal, M2 fuel system O-ring, 135i pump gasket, M135i fuel rail seal, M235i injection seal, 335i pressure pump seal ring, 435i petrol pump O-ring, 535i fuel system gasket, X3 35i high pressure pump seal, X4 35i pump O ring, X5 35i fuel leak fix ring, X6 35i N55 pump seal, BMW N55 sealing ring for upgraded pump, N55 rail pressure seal, BMW F-series E-series 35i pump O-ring.\n  \u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"Dorch Engineering","offers":[{"title":"Default Title","offer_id":56005692785026,"sku":null,"price":39.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/WhatsAppImage2023-04-20at2.20.09PM_2_9306c445-4ef1-4cc6-ac83-84de4fda40ad.jpg?v=1764021584","url":"https:\/\/mjmodifications.co.uk\/products\/dorch-engineering-bmw-n55-o-ring-inc-m2-135i-m235i-435i","provider":"MJ Modifications","version":"1.0","type":"link"}