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BMW

Genuine BMW N55 PCV Breather Hose/Pipe Crankcase Vent Line Valve Cover to Intake Oil Vapour Hose - E82 E88 E90 E91 E92 E93 F07 F10 F11 F06 F12 F13 E84 F25 F26 E70 F15 E71 F16 - 135i 335i 535i 640i X1 X3 X4 X5 X6 - OEM 11127584128

Genuine BMW N55 PCV Breather Hose/Pipe Crankcase Vent Line Valve Cover to Intake Oil Vapour Hose - E82 E88 E90 E91 E92 E93 F07 F10 F11 F06 F12 F13 E84 F25 F26 E70 F15 E71 F16 - 135i 335i 535i 640i X1 X3 X4 X5 X6 - OEM 11127584128

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BMW N55 Engine Breather Line Positive Crankcase Ventilation Pipe - Part No. 11127584128

Restore smooth running and stop unwanted fumes with this genuine BMW engine breather line for N55 turbo petrol models. This OE ventilation pipe replaces the brittle factory tube between the rocker cover and the intake tract, keeping blow-by under control and maintaining stable idle, proper fuelling and reliable boost response. Exact-fit quality, factory connectors and the correct routing for long-term reliability. Part number 11127584128.

What it does

The positive crankcase ventilation system manages oil vapour and crankcase pressure. When the original line ages, it can crack at the quick-connect ends or split along the hose, causing air leaks, oil smell and drivability issues. Swapping to this genuine replacement restores airtight sealing and correct vacuum, protecting your N55 and keeping emissions equipment happy.

Why this OEM ventilation pipe is the smart choice

  • Direct replacement with factory-style connectors for an effortless install and precise fit
  • Prevents unmetered air leaks that lead to rough idle, whistling, fuel trims, stumble and fault codes
  • Durable OE materials that resist heat, oil mist and under-bonnet vibration
  • Ideal preventative maintenance on tuned or daily-driven N55 straight-six engines
  • Used by us in-house with excellent results and consistently positive feedback from our customers

Also searched as

Engine breather line N55, rocker cover vent pipe, blow-by hose, PCV tube, oil vapour return hose, crankcase ventilation line, valve cover to intake pipe, oil mist hose, separator hose for N55, intake vent tube, N55 breather pipe 11127584128.

Compatibility

Suits early BMW N55 petrol models. Production dates vary, so please confirm with your registration or last 7 of VIN.

  • 1 Series E82 E88 - 135i
  • 3 Series E90 E91 E92 E93 LCI - 335i, 335xi
  • 5 Series F07 GT, F10, F11 - 535i, 535ix, Hybrid 5
  • 6 Series F06, F12, F13 - 640i, 640ix
  • X Models E84 X1 35ix, F25 X3 35ix, F26 X4 35i, E70 X5 35ix and 40ix, F15 X5 35i and 35ix, E71 X6 35ix and 40ix, F16 X6 35i and 35ix

Chassis search terms many owners use: E82, E88, E90, E91, E92, E93, F07, F10, F11, F06, F12, F13, E84, F25, F26, E70, F15, E71, F16 N55 turbo.

Common symptoms this part resolves

  • Oil smell around the car or in-cabin after warm-up
  • High-pitched whistle, hiss or whoosh from the valve cover area
  • Erratic idle, hesitation, lean mixture or vacuum leak codes
  • Visible splits or broken locking tabs on the original hose

What you receive

  • 1 x Genuine BMW crankcase ventilation pipe for N55

Part number

BMW 11127584128

Fitting service

Straightforward like-for-like replacement. For professional installation, book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Fitment help

To ensure you receive the correct item, add your UK registration or the last 7 digits of your VIN at checkout and we will confirm compatibility.

Why buy from MJ Modifications

  • BMW and performance specialists with hands-on N55 experience
  • Genuine OEM components for proper fitment and reliability
  • Proven on our own cars and customer builds with great long-term results

Search terms often used

N55 engine breather pipe, valve cover vent line, PCV vent tube N55, crankcase hose 11127584128, BMW 135i 335i 535i 640i vent pipe, E chassis N55 breather, F chassis N55 ventilation hose, xDrive 35i breather line, BMW oil vapour hose N55.

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