KanSmart crankcase vent hose for BMW N55 OEM 11127584128 — direct-fit, oil- and heat-resistant

KanSmart 11127584128 is a direct-fit crankcase vent (PCV) hose designed to replace the OEM line on BMW N55-equipped models, restoring proper crankcase ventilation and preventing oil leaks.

This replacement vent hose is built to meet the demands of BMW N55 engines and is manufactured for durability and reliable fitment. It ships brand new and is tested prior to dispatch. The hose is intended specifically for the factory applications listed and is designed as a straightforward, no-modification swap for the original part number 11127584128.

How does this vent hose improve engine performance and reliability?

Replacing a cracked or clogged crankcase vent hose helps the engine manage crankcase pressure correctly and routes blow-by gases back into the intake stream as intended. That reduces oil seepage, minimizes vacuum-related drivability issues, and helps keep the intake and surrounding components cleaner.

• Restores proper crankcase ventilation and pressure balance.
• Reduces oil leaks and prevents oily residue on engine components.
• Helps maintain smoother idle and steadier vacuum control.

Will this hose fit my BMW model and how do I confirm compatibility?

This KanSmart hose is made to replace OE part 11127584128 and fits many N55-engine models. Check your vehicle year and model against the fitment list before purchasing to confirm compatibility; fitment is specific and not universal across all BMWs.

• Compatible models include BMW 135i, 335i, 535i, 640i, X1, X3, X4, X5, X6 and certain GT/xDrive variants (see detailed list).
• Fits model years generally from 2011–2017 depending on the vehicle and configuration.
• Confirm your car’s engine code (N55) and OEM part number for accuracy.

How difficult is installation and what tools are required?

Installation is intended to be straightforward; the hose is a direct replacement that requires no cutting, drilling, or modification. A basic set of hand tools and quick access to the valve cover and intake area are typically all that’s needed for a standard replacement.

• Direct-fit design for simple swap with existing clamps or connectors.
• Common tools: screwdrivers, pliers, and possibly a ratchet with sockets for adjacent components.
• Operation can be completed in a garage without specialized equipment.

What are the material and quality assurances for this replacement hose?

The KanSmart hose is manufactured from materials chosen to resist oil vapor, heat, and chemical exposure common in crankcase ventilation systems. Each unit is tested before shipping to ensure it meets functional expectations and fitment standards.

• Made to withstand oily exhaust gas and engine bay temperatures.
• Designed to prevent leakage and reduce aging or corrosion of nearby parts.
• Backed by a lifetime warranty and seller support for after-sales issues.

Who is this for: The KanSmart 11127584128 crankcase vent hose is aimed at BMW owners and independent mechanics working on N55-engined 3, 5, 6 and X Series vehicles who need a reliable, direct-fit replacement. It’s especially useful if you’re troubleshooting oil leaks, rough idle, or vacuum faults tied to a failing PCV hose and want a tested aftermarket option that mirrors OEM dimensions.