Emissions System for BMW 5 Series E39 (1996-2003)

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Is your BMW throwing emissions related codes? While we're primarily a BMW performance parts house, we understand the importance of maintaining your emissions system to pass inspection in your area and keep your check engine light off. Pick up your emissions related parts from Turner Motorsport.

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Idle Control Valve Kit

10X Entries Into Our F80 M3 Sweepstakes

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

Burgaflex Crankcase Vent Hose - Vent Valve to Oil Dip Stick Tube - E3...

For vehicles with production date from 09/1998

T#:596606

Part#: 11157532649

Ships in 4 Business Days

$ 12.99 USD

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$ 12.99 USD

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Maintain peak engine health and precise air-fuel control by replacing your worn or cracked factory breather assembly with a premium Burgaflex replacement.

Burgaflex Crankcase Vent Pipe - Return Pipe from Connecting Hose - E3...

For vehicles with production date up to 01/2000

T#:596611

Part#: 11617504536

Ships in 4 Business Days

$ 17.99

This product was last offered at the strikethrough price on
09-26-2026

$ 13.99 USD

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$ 13.99 USD

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Keep your vehicle running crisp and leak-free with this premium return pipe manufactured by Burgaflex.

Vent Hose - Crankcase-Ventilation / Oil Separator

T#:57725180

Part#: 11151740393

Ships in 4 Business Days

$ 5.99 USD

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$ 5.99 USD

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Maintain your engine's operational integrity and keep vacuum leaks at bay with this essential replacement vent hose from Burgaflex.

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

For vehicles with production date from 09/1998

2X Entries Into Our F80 M3 Sweepstakes

T#:359420

Part#: 11157532649

In Stock

$ 11.99 USD

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$ 11.99 USD

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ENGINE VENT HOSE 11157532649

O2 Sensor Bung and Plug

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T#:339000

Part#: TEN9949O2S

Ships in 6 Business Days

Starting at $ 12.95 USD

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Starting at $ 12.95 USD

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This weld-in bung allows an O2 sensor to be screwed into your exhaust system. It's required for custom exhaust systems, and is also useful for air/fuel ratio measurements when dyno testing.

Oxygen Sensor

T#:56254844

Part#: 11787512973

Special Order: No Guaranteed ETA

$ 62.99 USD

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$ 62.99 USD

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Maintain peak engine performance and precise air/fuel ratio telemetry with the Febi Bilstein Heated Oxygen Sensor.

Meyle Oxygen Sensor - Post-Cat - E46 E39 X3 X5 Z3 Z4

For vehicles with production date from 09/1998

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T#:5944219

Part#: 11781433940

Ships on Oct 13, 2026

$ 78.99 USD

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$ 78.99 USD

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This is the post-cat oxygen sensor for cylinders 4-6 for BMW E46 E39 X3 X5 Z3 Z4. This item fits the following BMWs: 1999-3/2003 E46 BMW 323i 323ci 325xi 328i 328ci 330i 330ci 330xi 2001-3/2003 E46 BMW 325i 325ci only for cars with M54 engine 1999-2003 E39 BMW 528i 525i 530i 2004-2006 E83 BMW X3 2.5 - Bank 1 Only 2004-2006 E83 BMW X3 3.0i - Bank 1 - Automatic Transmission Only 2000-2006 E53 BMW X5 3.0i 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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Oxygen Sensor - Priced Each

T#:22064620

Part#: 11781247406

Special Order: No Guaranteed ETA

$ 55.99 USD

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$ 55.99 USD

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Pierburg Secondary Air Pump Check Valve - BMW E39, Z3

T#:25109075

Part#: 11727540472

Special Order: No Guaranteed ETA

$ 76.99 USD

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$ 76.99 USD

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This air pump check valve prevents exhaust gases from entering the air injection system. If the air injection check valve develops issues, then the check engine light can illuminate. This issue will cause your vehicle to release more emissions and potentially damage the AIR system. Replace your old malfunctioning valve to get your car emissions compliant again.

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

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T#:47439371

Part#: 02SB1815

Ships on Apr 26, 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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"Cold Climate" Crankcase Pressure Regulator Valve

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:35829339

Part#: 11617533400

Back Ordered

$ 69.99 USD

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$ 69.99 USD

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BMW vehicles are prone to oil separators freezing in cold weather if driven before the engine is fully warmed up. This can lead to a howling noise followed by multiple oil leaks. The crankcase breather valve vents oil vapor from the engine block to the valve cover, but condensation can sometimes cause it to freeze, leading to a failure of the entire oil separator system, causing it to crack and break down. To prevent damage to your engine, it’s best to replace all components of the oil separator system at once. Replacing everything ensures reliable performance and durability. Remember to also order a valve cover gasket to make the replacement process easier.

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Bremmen Mounting Grommet Seal - BMW E36 E39 Z3 E34 E38

Up to Model Year 09/1998

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T#:640144

Part#: 13411733217

Back Ordered

$ 10.99 USD

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$ 10.99 USD

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This grommet is located on the back side of the PCV or idle control valve

Meyle Oxygen Sensor - Pre-Cat - E36 Z3 M44, E31, E38, E39 M62 (97-98)...

For vehicles with production date up to 09/1998

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:5944214

Part#: 11781247406

Back Ordered

$ 57.99 USD

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$ 57.99 USD

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This direct-fit Meyle oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing is required. A new oxygen sensor can improve driveability and lengthen engine life. This is the pre-catalytic converter oxygen sensor

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Emissions System for BMW 5 Series E39 (1996-2003)

Sub-Categories

Idle Control Valve Kit

Burgaflex Crankcase Vent Hose - Vent Valve to Oil Dip Stick Tube - E3...

Burgaflex Crankcase Vent Pipe - Return Pipe from Connecting Hose - E3...

Vent Hose - Crankcase-Ventilation / Oil Separator

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

O2 Sensor Bung and Plug

Oxygen Sensor

Meyle Oxygen Sensor - Post-Cat - E46 E39 X3 X5 Z3 Z4

Oxygen Sensor - Priced Each

Pierburg Secondary Air Pump Check Valve - BMW E39, Z3

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

"Cold Climate" Crankcase Pressure Regulator Valve

Bremmen Mounting Grommet Seal - BMW E36 E39 Z3 E34 E38

Meyle Oxygen Sensor - Pre-Cat - E36 Z3 M44, E31, E38, E39 M62 (97-98)...

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