Emissions System

Turner Motorsport Silicone PCV Hose for BMW M57

Upgrade your BMW M57 engine with our Silicone PCV Hose, a premium replacement for the fragile, failure-prone factory hose. Over time, the stock rubber hose deteriorates due to constant exposure to heat and oil, leading to cracks and leaks. Our solution? A high-quality silicone hose engineered for superior durability and long-term reliability.

To further enhance performance, we’ve lined the hose with fluorosilicone, providing exceptional resistance to oil and chemical degradation. Designed in-house using advanced CAD modeling and 3D scanning, this hose offers a precise OEM fit while eliminating the common weaknesses of rubber construction.

Each kit includes stainless steel hose clamps for a secure, hassle-free installation. Whether you’re replacing a worn-out PCV hose or upgrading for added peace of mind, this premium solution ensures your BMW M57 runs smoothly and efficiently for years to come.

Features:

Direct OEM Fit – Retains factory hose dimensions while eliminating reliability issues.
High-Performance Silicone – Resists heat-related wear for long-lasting durability.
4-Ply Fluorosilicone Lining – Superior protection against oil and chemical exposure.
Stainless Steel Clamps Included – Secure installation and extended service life.
Give your BMW M57 the reliability it deserves—upgrade to the Turner Motorsport Silicone PCV Hose today!

The factory rubber/plastic hoses become brittle and crack over time. Brittle and cracked hoses can cause multiple vacuum leaks that are impossible to repair without hose replacement. Vacuum leaks can cause many problems including rough running, missing, stalling at idle, and even a no-start condition.

The factory hoses offered through BMW are plastic and will yield the same results of becoming brittle and damaged over time. Our solution is a premium replacement that will outlast everyone of the OEM replacements. Our Silicone Crankcase Vent Hose can be used to replace the factory brittle hose to ensure your S54 is free from vacuum leaks and performing properly.

CSL Vent Hose (11157833649) - Silicone Crankcase Vent hose is a direct replacement

Key benefits:

Lifetime replacement of the brittle OEM plastic crankcase breather hose that is susceptible to cracking overtime from constant heat cycling

Design:

Retains OEM hose end fittings to ensure proper seal

“Black” 3 ply reinforced silicone w/ “White” Turner logo

A combination of billet fittings and AN lines for an upgraded and serviceable crankcase vent hose. Attaches between the oil separator and the CSL air box.

The factory rubber/plastic hoses become brittle and crack over time. Brittle and cracked hoses can cause multiple vacuum leaks that are impossible to repair without hose replacement. Vacuum leaks can cause many problems including rough running, missing, stalling at idle, and even a no-start condition. The factory hoses offered through BMW are plastic and will yield the same results of becoming brittle and damaged over time.

We have created a full motorsport style solution with our CSL Crankcase made from machined 6061 billet aluminum with AN style fittings and nylon fiber braided lines. This is a fully serviceable replacement that will outlast every one of the OEM replacements. Our AN crankcase line can be used to replace the factory brittle hose to ensure your S54 is free from vacuum leaks and performing properly.

OEM CSL Vent Hose (11157833649) - Direct Replacement

Key benefits:

Lifetime replacement of the brittle OEM plastic crankcase breather hose
Fully Serviceable
Motorsport Aesthetic to compliment your CSL Intake Plenum
Design:

Fittings are made from billet 6061-T6 aluminum and finished in Type II black anodizing
Pre-anodized machined Turner branding
Nylon fiber braided lines
Fittings are a direct replacement for the plastic OEM fittings

On M52/S52-equipped BMWs, the factory crankcase ventilation (CCV) system is a notorious weak link. Between brittle plastic corrugated hoses that crumble from heat soak and an internal cyclone diaphragm prone to tearing, a failing CCV leads to massive oil consumption, vacuum leaks, and that dreaded "howling" whistle.

This kit addresses these issues with all new components and hardware. Both oil separator hoses, the cyclone separator itself, the mounting grommet, and the retaining bolts are included. Servicing this system is guaranteed to restore performance lost as a result of worn CCV components.

Kit includes:

Cyclone Separator/Crankcase Pressure Regulator Valve High Performance Silicone Breather Hose Return Hose Mounting Grommet Hex Bolt (3)

URO Oxygen Sensor - For BMW N54 N55 N20 Engines

The URO Oxygen Sensor - For BMW N54 N55 N20 Engines is a high-quality replacement designed to restore proper oxygen sensor function and optimize the engine air-fuel mixture. This direct-fit OE replacement ensures seamless compatibility with factory components, providing accurate fuel metering for improved engine efficiency and emissions control. The plug-and-play design simplifies installation, allowing for a hassle-free replacement without modifications. Built from high-quality materials, this oxygen sensor is engineered to withstand extreme exhaust system temperatures, ensuring long-lasting durability and consistent performance. Featuring alloy conductors that minimize electrical resistance, it delivers precise readings for optimal fuel efficiency. Backed by a 24-month unlimited mileage warranty, it offers peace of mind for BMW owners seeking reliable performance.

Key Benefits:

• Direct-fit OE replacement restores proper oxygen sensor function and fuel metering
• Plug-and-play connection for quick and hassle-free installation
• High-temperature resistant materials ensure long-lasting durability
• Alloy conductors minimize electrical resistance for accurate sensor operation
• 24-month unlimited mileage warranty for added confidence

Upgrade your BMW N54, N55, or N20 engine with the URO Oxygen Sensor and experience improved efficiency, emissions control, and long-term reliability.

BMW N20 2.0L Front Oxygen Sensor - 11787589121 is a high-quality direct-fit replacement designed to restore precise air-fuel ratio measurements for optimal engine efficiency. This oxygen sensor ensures accurate emissions control and fuel economy by delivering real-time data to the engine management system. Built with durable materials to withstand extreme exhaust temperatures, it guarantees long-lasting performance and reliability. Featuring an easy plug-and-play connection, this sensor simplifies installation while maintaining OE-level precision.

• Guaranteed fitment for seamless installation and proper functionality
• Direct-fit OE replacement design restores accurate air-fuel mixture regulation
• Easy plug-and-play connection for hassle-free installation
• High-quality materials withstand extreme exhaust system heat for durability
• Alloy conductors minimize electrical resistance for precise sensor operation
• Backed by a 24-month unlimited mileage warranty for added confidence

Ensure optimal fuel efficiency and emissions performance by replacing your worn-out oxygen sensor with this premium-quality BMW N20 2.0L Front Oxygen Sensor.

This hose runs from the oil separator to the intake manifold and is designed to allow the recirculation of built-up oil vapors.

Due to its proximity to engine heat, this hose tends to get brittle and break as it ages. This can lead to oil leaks, vacuum leaks, misfires, and more.

If your crankcase ventilation hose is brittle or leaking, replace it with this unit from URO Parts.