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Rein CCV Oil Separator System

BMWs oil separator and crankcase ventilation system is excellent at what it does when properly maintained. Always inspect any visible hoses when you are under the hood and follow the manufacturers replacement schedule.
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BMW E46 Crankcase Pressure Regulator Valve | S54 3.2L Engine ...
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T#:39059262
Part#: 11157840446
In Stock
$ 40.99 USD
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BMW E46 Crankcase Pressure Regulator Valve | S54 3.2L Engine is a crucial component that ensures proper crankcase ventilation by regulating oil vapor flow into the intake manifold, preventing excessive oil consumption and buildup. Designed specifically for BMW E46 models with the S54 3.2L engine, this valve helps maintain engine efficiency and performance. BMW engines are known to experience oil separator freezing in cold weather if not fully warmed up, which can lead to howling noises and oil leaks. To ensure a thorough repair, replacing the valve cover gasket when changing the separator is highly recommended.

  • Regulates crankcase pressure to prevent excessive oil consumption
  • Helps maintain proper engine ventilation for peak performance
  • Reduces the risk of oil separator freezing and associated leaks
  • Direct-fit replacement for BMW E46 models with S54 3.2L engine
  • High-quality materials ensure durability and long-lasting performance
  • Recommended to replace the valve cover gasket for a complete repair

Protect your BMW's engine from excessive oil consumption and leaks by replacing a failing crankcase pressure regulator valve with this premium-quality replacement.

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Crank case vent hose N55 3.0L Engine
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T#:599676
Part#: 11127584128
In Stock
$ 57.99

This product was last offered at the strikethrough price on
03-25-2026

$ 53.99 USD
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$ 53.99 USD
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Explore the Turner Motorsport Rein Crankcase Vent Hose designed for the N55 3.0L Engine in BMW vehicles. This high-quality vent hose plays a crucial role in maintaining the optimal performance of your BMW's engine. Crafted by Rein, a trusted name in automotive components, this hose ensures efficient ventilation, preventing issues associated with crankcase pressure. Upgrade your BMW's engine system with this vent hose for enhanced performance and longevity.

  • Specifically designed for the N55 3.0L Engine in BMW vehicles.
  • Ensures efficient ventilation for the crankcase.
  • High-quality construction for durability.
  • Prevents issues associated with crankcase pressure.
  • Reliable performance from a trusted brand in automotive components.

Upgrade your BMW's engine with the Turner Motorsport Rein Crankcase Vent Hose for a reliable and efficient solution to crankcase ventilation.

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Vent Hose
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T#:3136224
Part#: 11157612996
In Stock
$ 36.85 USD
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Rein Crankcase Breather Valve | BMW E39 E52 S62 5.0L Engine
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T#:38195432
Part#: 11151406788
Ships in 3 Business Days
$ 34.99 USD
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Rein Crankcase Breather Valve | BMW E39 E52 S62 5.0L Engine is a high-quality replacement designed to address common crankcase ventilation issues in BMW engines. A failing breather valve can lead to excessive oil consumption, vacuum leaks, and even freezing in colder temperatures, causing performance issues and potential engine damage. This direct-fit replacement effectively regulates the removal of oil vapors, preventing system failures and ensuring smooth engine operation. For optimal results, it is recommended to replace all related oil separator components simultaneously.

  • Prevents oil separator freezing and vacuum leaks in cold weather
  • Ensures proper crankcase ventilation to avoid excessive oil consumption
  • Direct-fit replacement for BMW E39 and E52 S62 5.0L engines
  • Helps maintain optimal engine performance and efficiency
  • Manufactured to meet or exceed OEM quality standards
  • Recommended to replace with other oil separator components for long-term reliability
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Crankcase Pressure Regulator Valve
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T#:594300
Part#: 11151703484
In Stock at Vendor
$ 50.99 USD
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$ 50.99 USD
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BMW has an issue with oil separators freezing in cold weather if the engine is not fully warmed up during driving. Common symptoms are a howling noise followed by oil leaks.
Crankcase Vent Valve - Rein - BMW E39 M5 E52 Z8
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T#:38229086
Part#: 11151406789
Ships in 3 Business Days
$ 44.99 USD
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Crankcase Vent Valve - Rein - BMW E39 M5 E52 Z8 is a crucial component for maintaining proper crankcase ventilation and preventing harmful oil buildup in the engine. Over time, the vent valve can become clogged with oil, leading to excessive crankcase pressure, poor engine performance, and increased carbon deposits. A failing valve can result in rough idling, misfires, and blue smoke from the exhaust. Replacing the crankcase vent valve at regular intervals ensures optimal engine efficiency and longevity.

  • Prevents oil-rich vapors from entering the intake system
  • Reduces the risk of carbon buildup and engine misfires
  • Direct-fit replacement for BMW E39 M5 and E52 Z8 models
  • Ensures proper crankcase ventilation for optimal performance
  • Helps eliminate excessive crankcase pressure and oil leaks
  • Manufactured to meet or exceed OEM quality standards
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Rein Crankcase Vent Hose (3-Way Hose)
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T#:17771573
Part#: 11157581815
Ships in 3 Business Days
$ 41.99 USD
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Resistant to heat, salt, and road debris, Rein hoses are identical to OE and are more affordable.
Rein Crank Case Vent Hose
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T#:17605208
Part#: 11127590163
In Stock
$ 26.47 USD
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$ 26.47 USD
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Engine Crankcase Breather Hose from Rein is a more affordable option when you're in need. This connects to the ccv on the valve cover.

Rein Crank Case Ventilation Valve - Priced Each
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T#:17738377
Part#: 11158647299
In Stock
$ 79.99

This product was last offered at the strikethrough price on
03-26-2026

$ 73.99 USD
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$ 73.99 USD
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Rein's OE quality breather hose helps prevent pressure build-up in the engine.

Rein Crankcase Ventilation Pipe - F15/F16 N63
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T#:17605207
Part#: 11158647962
In Stock
$ 199.99 USD
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A leaking crank vent can cause check engine lights and failed emissions, select Rein's more affordable option to get your car running healthy again.
Oil Separator Valve
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T#:594299
Part#: 11617531423
Ships in 3 Business Days
$ 120.81 USD
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$ 120.81 USD
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The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.
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Rein Crank Case Ventilation Valve
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T#:17704764
Part#: 11158647298
In Stock at Vendor
$ 61.80 USD
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Designed to be a direct fit for OEM hoses, Rein has replacements for an affordable cost.