Emissions System for BMW Z Series E85/6 (2003-2008)

"Cold Climate" Crankcase Pressure Regulator Valve

Superior performance for both warm and cold climates

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T#:376770

Part#: 11617533400

Ships in 1 Business Day

$ 70.99

This product was last offered at the strikethrough price on
04-10-2026

$ 40.99 USD

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$ 40.99 USD

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Commonly referred to as the "oil separator" or PCV

URO Crankcase Ventilation Hose - BMW M52TU M54

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T#:377307

Part#: 11157532649

Ships in 1 Business Day

$ 12.99 USD

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$ 12.99 USD

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From oil separator to dipstick tube

Crankcase Ventilation Hose

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T#:378279

Part#: 11617533398

Ships in 1 Business Day

$ 21.99 USD

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$ 21.99 USD

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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.

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Rein Return Pipe - E39, E46, E53, E60, E83, Z3, Z4

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T#:375092

Part#: 11617504536

In Stock

$ 19.99 USD

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$ 19.99 USD

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Runs from the intake manifold back to connecting hose

Universal Vortex Breather Catch Can

T#:587831

Part#: 034-101-4000

Ships in 2 Business Days

$ 153.00 USD

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$ 153.00 USD

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Secondary Air Pump

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T#:37757223

Part#: 11727571591

Ships in 1 Business Day

$ 181.99 USD

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$ 181.99 USD

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**Features:** - Optimized design for maximum airflow - Precision bearings ensure quiet operation with minimal vibration - Durable, high-quality housing for long-lasting performance

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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Denso Oxygen Sensor - Right - E60, E63, E64

T#:1196208

Part#: 11787540166

In Stock at Vendor

$ 205.99

This product was last offered at the strikethrough price on
05-07-2026

$ 199.99 USD

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$ 199.99 USD

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Reads out emissions levels to the cars computer

Return Pipe

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T#:372847

Part#: 11617504536

Ships in 1 Business Day

$ 16.99 USD

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$ 16.99 USD

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Runs from the intake manifold back to connecting hose

AutoTecknic Dry Carbon Competition Oil Cap Cover - Type 2 - For Vario...

T#:39971048

Part#: BM-0008

Ships in 7 Business Days

$ 64.99 USD

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$ 64.99 USD

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A precision-crafted dry carbon fiber upgrade that enhances the engine bay of compatible BMW and MINI vehicles with a lightweight, motorsport-inspired design and easy OEM-style installation

Pierburg Secondary Air Pump - E83, Z4

T#:379001

Part#: 11727571591

Ships in 1 day

$ 315.05 USD

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$ 315.05 USD

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Common source of emissons related issues

Genuine BMW Oxygen Sensor - E83 Z4

Rear

T#:13052

Part#: 11787513962

Ships in 6 Business Days

13% off MSRP $ 325.99

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

$ 281.99 USD

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13% off MSRP

$ 325.99

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

$ 281.99 USD

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Genuine BMW Regulating Lambda Probe - L=320mm
This item fits the following BMW Chassis:
E83 X3,E85

Fits BMW Engines including:
M54

Genuine BMW Front Oxygen Sensor - bank 1 Pre-Cat

T#:367762

Part#: 11787558055

Ships in 4 Business Days

13% off MSRP $ 406.99

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

$ 352.99 USD

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13% off MSRP

$ 406.99

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

$ 352.99 USD

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Pierburg Air Pump Control Valve - E53, E60, Z4

T#:379003

Part#: 11727553067

Ships in 1 day

$ 144.02 USD

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$ 144.02 USD

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Located on the cylinder head, allows air to enter into the exhaust

Return Pipe - E46, Z3, Z4

T#:36176

Part#: 11537838756

Ships in 6 Business Days

1% off MSRP $ 587.99

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

$ 583.99 USD

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1% off MSRP

$ 587.99

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

$ 583.99 USD

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Genuine BMW Return Pipe
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

Fits BMW Engines including:
S54

Rein Crankcase Ventilation Hose - E39, E46, E60, E83, Z3, Z4 ...

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T#:359420

Part#: 11157532649

In Stock

$ 11.99 USD

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$ 11.99 USD

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ENGINE VENT HOSE 11157532649

Secondary Air Pump Bracket - E46, Z4

T#:37420

Part#: 11727514955

Ships in 10 Business Days

2% off MSRP $ 50.99

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

$ 49.99 USD

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2% off MSRP

$ 50.99

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

$ 49.99 USD

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Genuine BMW Secondary Air Pump Bracket -
This item fits the following BMW Chassis:
E46,E85

Fits BMW Engines including:
M54,M56

OEM Febi Crankcase Ventilation Return Hose - E60 E90 Z4 N52 3.0L ...

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T#:38452821

Part#: 11157527570

Special Order: No Guaranteed ETA

$ 93.99 USD

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$ 93.99 USD

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For your BMW's optimal performance, ensure the functionality of the hose connecting the oil dipstick to the crankcase vent valve. Positioned below the intake manifold, this hose is susceptible to clogging with oil film and condensation, leading to potential failure over time. Cracks and swelling in old hoses can result in oil and vacuum leaks, compromising engine performance.

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Febi Rear Oxygen Sensor - Bank 1 Post-Cat

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T#:16375111

Part#: 11787526262

Special Order: No Guaranteed ETA

$ 124.99 USD

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$ 124.99 USD

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The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Febi's Oxygen sensors are high quality and will give you the longest and best performance for the price.

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Front Oxygen Sensor - Bank 1 Pre-Cat

T#:54780515

Part#: 11787558055

Ships on Oct 19, 2026

$ 99.99 USD

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$ 99.99 USD

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Meyle Oxygen Sensor - BMW F10/12/13 M S63, Z4 N52 3.0L

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T#:5973207

Part#: 11787539137

Special Order: No Guaranteed ETA

$ 102.99 USD

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$ 102.99 USD

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The O2 sensor measures the amount of unburned fuel in the exhaust pipe to adjust fuel mapping for less emissions and better fuel economy. When malfunctioning, your MPG and performance can suffer. Replaced fairly easily, you can restore your performance and mileage quickly. Be sure to add anti-seize on the threads to prevent it from becoming a permanent part of the exhaust. Regularly scheduled maintenance as these tend to fail slowly.

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Pierburg Vacuum Pump - BMW N52 3.0L

T#:380841

Part#: 11667519457

Special Order: No Guaranteed ETA

$ 225.99 USD

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$ 225.99 USD

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If your vacuum pump is noisy then it is only a matter of time before it fails, leading to idling issues and a loss of braking power. Replace yours with this OEM Pierburg Vacuum Pump to ensure the smooth operation of the vacuum system.

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Meyle Rear Bank 1 Post-Cat Oxygen Sensor - 560mm - E70 E83 E82/88 E9X...

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T#:5944215

Part#: 11787545074

Special Order: No Guaranteed ETA

$ 116.99 USD

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$ 116.99 USD

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The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. This is a Meyle oxygen sensor for BMW's with the N52, N54, and N55 3.0L engines. This 560mm bank 1 oxygen sensor is mounted after the catalytic converter. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm) ...

T#:47439371

Part#: 02SB1815

Ships on Feb 16, 2027

Sale - Save 39% $ 3.99

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

$ 2.44 USD

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Qty

Sale - Save 39%

$ 3.99

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

$ 2.44 USD

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Easily add an oxygen sensor to your custom exhaust setup with this universal O2 sensor bung. Designed for simple weld-on installation, it allows you to place your sensor exactly where you need it—perfect for custom builds, exhaust modifications, or performance tuning projects.

Features:

CNC-cut from T304 Stainless Steel for corrosion resistance
Threaded for M18x1.5mm RH oxygen sensors

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Meyle Oxygen Sensor - Pre-Cat Bank 2 - E9X E60 E82 N52

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T#:5944212

Part#: 11787558073

Special Order: No Guaranteed ETA

$ 123.99 USD

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$ 123.99 USD

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Bad oxygen sensors can cause check engine lights and poor fuel mileage. Replace your faulty sensor with this high-quality Meyle sensor to turn off your check engine light and restore fuel mileage. This is a Meyle oxygen sensor for BMWs with the N52 engine. This sensor is mounted in the rear downpipe before the catalytic converter. Replacement for BMW # 11787558073 and 11787537984. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Emissions System for BMW Z Series E85/6 (2003-2008)

Sub-Categories

"Cold Climate" Crankcase Pressure Regulator Valve

URO Crankcase Ventilation Hose - BMW M52TU M54

Crankcase Ventilation Hose

Rein Return Pipe - E39, E46, E53, E60, E83, Z3, Z4

Universal Vortex Breather Catch Can

Secondary Air Pump

Oil Separator Valve

Denso Oxygen Sensor - Right - E60, E63, E64

Return Pipe

AutoTecknic Dry Carbon Competition Oil Cap Cover - Type 2 - For Vario...

Pierburg Secondary Air Pump - E83, Z4

Genuine BMW Oxygen Sensor - E83 Z4

Genuine BMW Front Oxygen Sensor - bank 1 Pre-Cat

Pierburg Air Pump Control Valve - E53, E60, Z4

Return Pipe - E46, Z3, Z4

Rein Crankcase Ventilation Hose - E39, E46, E60, E83, Z3, Z4 ...

Secondary Air Pump Bracket - E46, Z4

OEM Febi Crankcase Ventilation Return Hose - E60 E90 Z4 N52 3.0L ...

Febi Rear Oxygen Sensor - Bank 1 Post-Cat

Front Oxygen Sensor - Bank 1 Pre-Cat

Meyle Oxygen Sensor - BMW F10/12/13 M S63, Z4 N52 3.0L

Pierburg Vacuum Pump - BMW N52 3.0L

Meyle Rear Bank 1 Post-Cat Oxygen Sensor - 560mm - E70 E83 E82/88 E9X...

02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm) ...

Meyle Oxygen Sensor - Pre-Cat Bank 2 - E9X E60 E82 N52

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