Emissions System

Restore proper engine ventilation with this premium replacement Crankcase Breather Valve (11127809512).

Designed to match the performance of the original BMW unit (OE 11-12-7-809-512 / 11-12-7-803-790), this valve maintains correct crankcase pressure, helps prevent oil buildup, and supports clean, efficient engine operation.

Crafted from high-quality, long-lasting materials and shaped to replicate the factory design, it installs easily in place of the stock breather without any modifications required.

Whether you’re addressing pressure-related drivability issues, refreshing your engine’s ventilation system, or performing preventative maintenance, this breather valve provides dependable performance and protects your BMW’s engine for the long haul.

Rein Crank Case Vent Hose is a high-quality replacement part designed to enhance the performance and longevity of your vehicle’s engine. Manufactured by Rein Automotive, this vent hose is built to withstand high pressures and temperatures, ensuring reliable crankcase ventilation. Engineered for a precise fit, it helps prevent harmful oil vapors from entering the intake manifold, improving overall engine efficiency. Available at Turner Motorsport, this vent hose is an ideal choice for drivers looking to maintain their vehicle’s performance and emissions standards.

• Designed for optimal crankcase ventilation, improving engine performance
• Reduces oil vapor contamination in the intake system, protecting engine components
• Made with durable materials to resist wear from heat and pressure
• Ensures precise fit and easy installation as a direct OEM replacement
• Helps reduce harmful emissions, supporting cleaner engine operation

Turner Motorsport offers the Rein Crank Case Vent Hose as a dependable solution to keep your engine running smoothly while meeting emissions regulations.

BMW Oil Separator Valve | M60 3.0 / 4.0L is a vital component that ensures proper crankcase ventilation by separating oil vapors from blow-by gases, preventing excessive oil consumption and maintaining engine efficiency. Designed for BMW models equipped with the M60 3.0L and 4.0L engines, this oil separator valve helps reduce carbon buildup and extends the life of essential engine components. For optimal results, it is recommended to replace the valve cover and crankcase ventilation system (CCV) when changing the separator valve.

• Effectively separates oil vapors to prevent excessive oil consumption
• Helps maintain proper crankcase ventilation for optimal engine performance
• Reduces carbon buildup and prolongs engine longevity
• Direct-fit replacement for BMW M60 3.0L and 4.0L engines
• High-quality materials ensure durability and resistance to engine heat
• Recommended to replace valve cover and CCV for complete system maintenance

Ensure the longevity and efficiency of your BMW engine by replacing a worn oil separator valve with this high-quality replacement.

This secondary air pump helps to reduce emissions by mixing fresh air with the exhaust. When this part fails cause a engine fault code and it will trigger a "service engine soon" light. 

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 325xi 330i 330ci 330xi 
2004-2005 E60 BMW 525i 530i
2004-2010 E60 BMW 545i M5
2004-2011 E63 BMW 645ci M6
10/2003-2006 E53 BMW X5 3.0i
2004-2005 E83 BMW X3 3.0i

Upgrade your N14 N18 1.6L Engine with the Vent Hose. This hose connects to the top valve cover with a special hose clip end and extends to the bottom side of the intake manifold, ensuring optimal performance of your Mini. It's a crucial component of the intake system, designed to enhance engine efficiency and longevity.

• Ensures proper ventilation of the engine
• Connects securely to the valve cover and intake manifold
• Facilitates efficient airflow within the engine compartment
• Compatible with N14 N18 1.6L Engine models
• Easy to install and replace as needed

This electric valve serves one of several purposes depending on which car it is used on. Please read the application listings below to ensure you are purchasing the correct part. 

Pierburg pumps are some of the most trusted and widely used on the market. From fuel, water, air and vacuum Pierburg has you covered with OE quality and reliable performance year after year.

This item fits the following BMWs:
Secondary Air System Valve
1996-1998 E36 BMW 323is 323ic 328i 328is 328ic M3
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
2003-2005 E46 BMW 325i 325ci (M56)
1997-2003 E39 BMW 525i 528i 530i 
2000-2006 E53 BMW X5 3.0i 
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 
1997-2000 Z3 BMW M Roadster M Coupe (S52)

The engine crankcase breather hose is a vital part of the Positive Crankcase Ventilation (PCV) system, responsible for directing pressurized air from the engine crankcase to the air/oil separator, also known as the PCV valve. This separator removes oil vapors from the air, allowing the oil to return to the engine while feeding the filtered air back into the intake system to support efficient combustion.

As a byproduct of the combustion process, positive crankcase pressure naturally builds up in the engine. The breather hose operates under constant exposure to heat, pressure, and an air/oil vapor mixture, making it prone to wear and failure over time. Ensuring the breather hose is in proper working condition is crucial for maintaining engine performance, adhering to emissions standards, and preserving the functionality of the PCV system. Promptly replace this component at the first signs of damage or degradation to avoid further complications.