KanSmart Crankcase Vent Hose for BMW N55 (OE 11127584128) — Direct-Fit, Durable Replacement

This replacement crankcase vent hose is made to match the original equipment fit for many BMW models that use the N55 engine. Built from resilient materials and tested before shipping, the hose routes crankcase vapors back into the intake system to help maintain expected ventilation and reduce oil contamination of surrounding components. The package contains one KanSmart crankcase vent hose and includes lifetime support from the seller.

How does this vent hose affect engine ventilation?

A functioning crankcase vent hose channels blow-by gases away from the crankcase and back into the intake to be burned, helping maintain pressure balance. Replacing a cracked or clogged hose prevents oil mist and vapors from reaching hot engine parts and lowers the chance of external leaks or fouled sensors.

• Restores crankcase pressure regulation for smoother idle and consistent vacuum readings.
• Redirects oily vapors into the intake for combustion rather than allowing them to coat engine bay parts.
• Helps reduce oil leaks caused by pressure buildup in the crankcase.

Will the KanSmart part fit my BMW model?

This KanSmart crankcase vent hose replaces OE part number 11127584128 and is designed for specific BMW models powered by the N55 engine. Confirm your vehicle’s year and model against the fitment list before purchasing to ensure a correct match.

• Compatible models include select 1, 3, 5 and 6 Series and X-series vehicles from 2011–2017 with N55 engines.
• Fits both naturally aspirated and xDrive variations where OE 11127584128 is specified.
• Check your existing part number and the seller’s fitment notes to avoid returns.

How difficult is installation and what should I expect?

Installation is intended to be a direct swap for the original hose and typically requires basic hand tools. No cutting or drilling is needed; the part is shaped to match OEM routing, so a competent DIYer or a technician can complete the swap quickly.

• Direct-fit replacement — no fabrication required.
• Typical install time: short; remove old hose, position new hose, secure clamps if present.
• Inspect related clamps and connectors during replacement and replace if worn.

What are the material and performance features?

The KanSmart hose is manufactured from durable compounds intended to resist oil, heat, and aging to preserve ventilation performance. The design aims to minimize leaks and reduce the chance of winter icing at the PCV hose by keeping blow-by flows controlled.

• High-quality material resists oil degradation and heat exposure.
• Engineered routing promotes mixing of intake air and blow-by for consistent combustion.
• Tested before shipping to ensure piece arrives intact and ready to install.

Who is this for: Drivers and independent mechanics who own BMW models equipped with the N55 engine and who need a one-for-one crankcase vent hose replacement. This product suits owners who prefer a ready-to-install aftermarket part with seller support and a lifetime assistance promise, and who want to prevent oil contamination, vacuum irregularities, and potential idle issues associated with worn PCV hoses.