Emissions System

Comprehensive Constant Pressure Valve Replacement Kit

T#:557341

Part#: 11111318185TMSKT

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This product was last offered at the strikethrough price on
05-03-2026

$ 84.32 USD

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When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem.

The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking.

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VTT B58/S58 Cylinder Head Port Block-Off Kit - BMW B58 Gen1/2/3 (B58/...

T#:49822557

Part#: VTTBS58BLOCK

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$ 29.99 USD

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The VTT B58/S58 Head Port Block-Off kit is designed to either seal off the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. The Block-Off kit offered by VTT completely seals the factory head ports to prevent oil intrusion and unwanted vacuum leaks. This kit does NOT require any tapping, meaning no metal to get into the engine, etc. You simply tap the plugs into place. Key Features Eliminates oil draw-through into the intake manifold Prevents carbon buildup on intake valves Utilizes precision-machined plugs for boost sealing Fully reversible — Block-offs can be removed if needed No tapping is required. Easy install, by tapping the blocks into place.

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Performance Oil Separator Kit - M52/S52

T#:51356040

Part#: 059015LA02KT2KT

Ships on Oct 5, 2026

Sale - Save 19% $ 104.99

This product was last offered at the strikethrough price on
05-03-2026

$ 84.77 USD

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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)

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Engine Oil Separator Package - Level 2 - E46 325, E39 525i M54 ...

T#:24344785

Part#: M54OILSEPKT

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This product was last offered at the strikethrough price on
05-03-2026

$ 133.54 USD

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If you need to perform a complete oil separator system service, this Level 2 kit provides you with all of the main components necessary to service your engine oil separator system. This Level 2 kit includes the following: Oil Separator Hose from oil separator to dipstick tube Hose from oil separator to valve cover Hose from intake manifold back to the connector hose Hose from oil separator up to the intake manifold Throttle body gasket Throttle body inlet boot ICV rubber grommet Oil dipstick tube o-ring seal It is highly recommended to replace the oil dipstick tube with the updated design by BMW as this also a common place for sludge to build up.

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Turner Oil Separator Kit - E39 M54

T#:555298

Part#: 11617501566KT6

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Sale - Save 19% $ 181.99

This product was last offered at the strikethrough price on
05-03-2026

$ 147.02 USD

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The plastic hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, mounting grommet, and hardware.

Fits the following BMWs:
2000-2003 E39 BMW 530i

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Genuine MINI Leak Diagnosis Pump

T#:44287

Part#: 16117158983

Ships in 3 Business Days

7% off MSRP $ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 415.99 USD

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7% off MSRP

$ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 415.99 USD

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Genuine MINI LEAK DIAGNOSIS PUMP
Fits BMW Engines including:
W10,W11

Genuine BMW Vacuum Hose - E36 318ti 318is 318ic 318i M44 1.9L ...

T#:37499

Part#: 11731435862

Special Order: No Guaranteed ETA

Sale - Save 24% $ 29.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 22.93 USD

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This product was last offered at the strikethrough price on
05-02-2026

$ 22.93 USD

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Genuine BMW Hose - 470mm
This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M44

Covering Outer - E36

T#:45102

Part#: 16131183047

Special Order: No Guaranteed ETA

Sale - Save 11% $ 30.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 27.58 USD

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05-02-2026

$ 27.58 USD

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Genuine BMW Covering Outer - Akf/Run.Loss
This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M44,M50,M52,S52

Air Adjustment Unit/DISA Valve Kit

T#:15677538

Part#: 11617533344-KT

In Stock

Sale - Save 25% $ 162.99

This product was last offered at the strikethrough price on
05-03-2026

$ 122.12 USD

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A bad DISA valve can cause a variety of issues, from a loud racket in the engine bay, hesitation at low rpm and a rough idle with lean codes. If the valve is making a loud noise, we recommend replacing it as soon as possible. It is possible for the pin holding the flap to be sucked into the motor causing serious damage. Very easy to replace, just need to undo the 4 bolts holding it to the intake manifold. Includes new mounting hardware

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Oil Separator Kit - Level 1

T#:15710823

Part#: E46M5411_61KT

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Sale - Save 24% $ 123.99

This product was last offered at the strikethrough price on
05-03-2026

$ 93.71 USD

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$ 93.71 USD

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Replace all the components of the oil separator system together to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable. BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. ur Level 1 kit includes the following; Oil separator Hose from oil separator to dipstick tube Hose from oil separator to valve cover Hose from intake manifold back to the connector hose Hose from oil separator up to the intake manifold

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Oil Separator kit - N63

T#:56291074

Part#: 11158636540KT2

Ships in 4 Business Days

$ 429.67 USD

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If your BMW is burning oil, showing unmetered air faults, or suffering from degraded throttle response, a compromised breather system is usually the culprit. The N63 Crankcase Breather Package pairs Genuine BMW oil separators with OE tier Rein connecting pipes. Designed to restore factory level oil separation and sealed vacuum integrity across both cylinder banks

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Vaico Oil Separator Valve - E38, E39

We Price Match - Give Us A Call or Chat!

T#:363292

Part#: 11151705272

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This product was last offered at the strikethrough price on
05-02-2026

$ 23.87 USD

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Connects to the vent tube which is attached to the PCV valve

Cold Climate Oil Separator Kit - Level 2

T#:15744065

Part#: 114317400450-KT

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This product was last offered at the strikethrough price on
06-15-2026

$ 137.46 USD

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If you are ready to perform a truly complete oil separator system service, our Level 2 kit provides you with all of our Level 1 kit components plus a throttle body gasket, throttle body inlet boot, ICV grommet, and dipstick tube o-ring. Our Level 2 Cold Climate kit includes the following: Oil separator - BMW cold climate recommended Hose from oil separator to dipstick tube - BMW cold climate recommended Hose from oil separator to valve cover Hose from intake manifold back to the connector hose Hose from oil separator up to the intake manifold Throttle body gasket Throttle body inlet boot ICV rubber grommet Oil dipstick tube o-ring seal It is highly recommended to replace the oil dipstick tube with the updated design by BMW as this also a common place for sludge to build up.

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Rear Oxygen Sensor Set - N52, N54

T#:55353594

Part#: 11787545074/5KT2

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$ 366.99 USD

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$ 366.99 USD

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Sluggish oxygen sensors do a lot more than just light up your dashboard with an annoying Check Engine Light—they directly choke your BMW’s performance.

Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55 ...

T#:55857772

Part#: 11787589475KT2

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$ 335.99 USD

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$ 335.99 USD

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Extreme exhaust heat and carbon buildup degrade your factory oxygen sensors over time, sending lazy data to your DME and robbing you of performance.

Front Oxygen Sensor Set - E9x, E82, E88, Z4

T#:55317713

Part#: BFR1/2O2SKT2

In Stock

$ 400.99

This product was last offered at the strikethrough price on
07-14-2026

$ 337.99 USD

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$ 337.99 USD

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Over time, that degradation robs your BMW of its crisp throttle response, tanks your fuel economy, and leaves you staring at a failed emissions ticket

Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52

T#:56110313

Part#: 11787558055KT

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$ 307.99 USD

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Your engine's air fuel ratio needs to be dead on. Worn out factory pre-cat oxygen sensors delay vital data to the DME, leading to sub optimal fueling, lost horsepower, and dangerous hesitation under load.

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Secondary Air Injection Pump

T#:56110341

Part#: 306-006

In Stock at Vendor

$ 427.99

This product was last offered at the strikethrough price on
07-17-2026

$ 322.99 USD

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$ 322.99 USD

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VTT S58 Cylinder Head Port Check Valve Kit - S58 3.0L

T#:49822559

Part#: VTTS58CHECK

Ships in 10 Business Days

$ 69.99 USD

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$ 69.99 USD

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The VTT S58 Head Port Check Valve Kit is designed to convert the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. VTT's Billet Check Valve kit converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while blocking boost pressure from entering the crankcase or charge tract.

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Vargas PCV Delete Kit - Cap W/ -10ORB Plug & VTA Catch Can - BMW S55 ...

T#:52164893

Part#: S55PCVCPCCVTA

Ships in 10 Business Days

$ 399.99 USD

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$ 399.99 USD

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The VTT VTA Catch Can Kit is a comprehensive crankcase ventilation solution specifically tailored for the BMW S55 engine.

VTT B58 Cylinder Head Port Check Valve Kit - B58 Gen1/2/3 (B58/B58TU/...

T#:49822558

Part#: VTTB58CHECK

Ships in 10 Business Days

$ 69.99 USD

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$ 69.99 USD

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The VTT B58 Head Port Check Valve Kit is designed to convert the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. VTT's Billet Check Valve kit converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while blocking boost pressure from entering the crankcase or charge tract.

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VTT Low-Profile Crankcase Vent Adapter -16ORB - BMW S58, B58TU ...

T#:51672705

Part#: VTT-S/B58-LP-CC-

Ships in 10 Business Days

$ 41.99 USD

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$ 41.99 USD

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The VTT Low-Profile Crankcase Vent Adapter is the definitive solution for high-boost BMW builds where hood clearance is a premium.

Genuine BMW Vent Hose - E46 325Ci, E46 325i

T#:32270

Part#: 11157513756

Ships in 3 Business Days

Sale - Save 16% $ 177.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 148.91 USD

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Sale - Save 16%

$ 177.99

This product was last offered at the strikethrough price on
05-14-2026

$ 148.91 USD

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Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M56

Idle Control Valve Kit

T#:15744026

Part#: 11611437453-KT

In Stock

$ 173.13 USD

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$ 173.13 USD

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Located in the intake system, this part is a common source of idle issues. This kit includes a new mount and idle control valve grommet

Crankcase Vent Pipe & Hardware Kit

T#:55281771

Part#: M6X16PCVKT

Ships in 1-2 days

$ 48.58 USD

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Keep your Ultimate Driving Machine performing at its peak with this Genuine BMW Crankcase Breather Hose and Hardware Kit.

Turner Oil Separator Kit - E53 X5 M62 4.4L 4.6L

T#:555308

Part#: 11151705237KT1

Back Ordered

Sale - Save 11% $ 208.99

This product was last offered at the strikethrough price on
05-03-2026

$ 186.75 USD

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$ 208.99

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$ 186.75 USD

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The rubber hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, and hardware.

Fits the following BMWs:
1999-2006 E53 BMW with M62 4.4L 4.6L

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Comprehensive Constant Pressure Valve Replacement Kit

VTT B58/S58 Cylinder Head Port Block-Off Kit - BMW B58 Gen1/2/3 (B58/...

Performance Oil Separator Kit - M52/S52

Engine Oil Separator Package - Level 2 - E46 325, E39 525i M54 ...

Turner Oil Separator Kit - E39 M54

Genuine MINI Leak Diagnosis Pump

Genuine BMW Vacuum Hose - E36 318ti 318is 318ic 318i M44 1.9L ...

Covering Outer - E36

Air Adjustment Unit/DISA Valve Kit

Oil Separator Kit - Level 1

Oil Separator kit - N63

Vaico Oil Separator Valve - E38, E39

Cold Climate Oil Separator Kit - Level 2

Rear Oxygen Sensor Set - N52, N54

Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55 ...

Front Oxygen Sensor Set - E9x, E82, E88, Z4

Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52

Secondary Air Injection Pump

VTT S58 Cylinder Head Port Check Valve Kit - S58 3.0L

Vargas PCV Delete Kit - Cap W/ -10ORB Plug & VTA Catch Can - BMW S55 ...

VTT B58 Cylinder Head Port Check Valve Kit - B58 Gen1/2/3 (B58/B58TU/...

VTT Low-Profile Crankcase Vent Adapter -16ORB - BMW S58, B58TU ...

Genuine BMW Vent Hose - E46 325Ci, E46 325i

Idle Control Valve Kit

Crankcase Vent Pipe & Hardware Kit

Turner Oil Separator Kit - E53 X5 M62 4.4L 4.6L

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