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BMW Engine Emission Parts

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Oil Separator Kit - Level 1

ES#260025 - e46m5411_61 - Oil Separator Kit - Level 1 - The most commonly replaced components in your breather system - Assembled By ECS - BMW

The most commonly replaced components in your breather system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
260025
Mfg#:
E46M5411_61
Ships on Jul 6, 2026
Auto Notify
ON SALE! SAVE 24%
$123.99

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

$93.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary air pump clutch

ES#26611 - 11721318481 - Secondary air pump clutch - Air pump pulley and magnetic clutch - Genuine BMW - BMW

Air pump pulley and magnetic clutch affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26611
Mfg#:
11721318481
Ships in 5 Business Days
1% off MSRP

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

$847.99

This product was last offered at the strikethrough price on
06-04-2026

$842.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

990mm - cure your poor gas mileage by replacing your worn oxygen sensors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
5376161
Mfg#:
11781427884
In Stock
$289.99

This product was last offered at the strikethrough price on
12-31-2025

$210.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 post-Cat

ES#27274 - 11787545074 - Rear Oxygen Sensor - Bank 1 post-Cat - Fuel control and emissions control sensor - Genuine BMW - BMW

Fuel control and emissions control sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
27274
Mfg#:
11787545074
Ships in 1-2 days
15% off MSRP

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

$325.99

This product was last offered at the strikethrough price on
06-04-2026

$277.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap - Non Locking

ES#35962 - 16111184718 - Gas Cap - Non Locking - Includes sealing gasket - Genuine BMW - BMW

Includes sealing gasket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
35962
Mfg#:
16111184718
In Stock
15% off MSRP

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

$69.99

This product was last offered at the strikethrough price on
06-04-2026

$59.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#27212 - 11781742051 - Oxygen Sensor - Rear, after catalyst - Genuine BMW - BMW

Rear, after catalyst affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
27212
Mfg#:
11781742051
Ships in 5 Business Days
7% off MSRP

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

$445.99

This product was last offered at the strikethrough price on
06-04-2026

$415.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose

ES#4858435 - 11157848340 - Crankcase Ventilation Hose - Connects the crankcase vent pipe to the valve cover. - Bremmen Parts - BMW

Connects the crankcase vent pipe to the valve cover. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4858435
Mfg#:
11157848340
In Stock
ON SALE! SAVE 21%
$54.99

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

$43.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

"Cold Climate" Crankcase Pressure Regulator Valve

ES#25780 - 11617533400 - "Cold Climate" Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" or PCV - Genuine BMW - BMW

Commonly referred to as the "oil separator" or PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Superior performance for both warm and cold climates

Brand:
Genuine BMW - Corporate Logo
ES#:
25780
Mfg#:
11617533400
Ships in 1-2 days
3% off MSRP

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

$119.99

This product was last offered at the strikethrough price on
06-04-2026

$116.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Tank Ventilation Valve Pipe

ES#2135806 - 13907618643 - Fuel Tank Ventilation Valve Pipe - Allows fuel fumes to vent into the engine's intake - Genuine BMW - BMW

Allows fuel fumes to vent into the engine's intake affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2135806
Mfg#:
13907618643
Ships in 3 Business Days
6% off MSRP

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

$143.99

This product was last offered at the strikethrough price on
06-04-2026

$135.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Cap

ES#35955 - 16111184664 - Fuel Cap - Non-locking fuel cap - Genuine BMW - BMW

Non-locking fuel cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 08/1999

Brand:
Genuine BMW - Corporate Logo
ES#:
35955
Mfg#:
16111184664
Ships in 3 Business Days
3% off MSRP

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

$69.99

This product was last offered at the strikethrough price on
06-04-2026

$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Return Pipe

ES#3493890 - 11157567801 - Crankcase Ventilation Return Pipe - Located under intake manifold - Rein - BMW

Located under intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3493890
Mfg#:
11157567801
In Stock at Vendor
$80.98

This product was last offered at the strikethrough price on
06-04-2026

$80.93 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 Oil Catch Can - F Chassis

ES#4475190 - OCCN55-F3X - N55 Oil Catch Can - F Chassis - Perfect for high boost applications. - Burger Motorsports - BMW

Perfect for high boost applications. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4475190
Mfg#:
OCCN55-F3X
Back Ordered
$199.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Pipe

ES#2954239 - 11158647962 - Crankcase Ventilation Pipe - A leaking crank vent can cause check engine lights and failed emissions. - Genuine BMW - BMW

A leaking crank vent can cause check engine lights and failed emissions. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2954239
Mfg#:
11158647962
Ships in 1-2 days
5% off MSRP

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

$417.99

This product was last offered at the strikethrough price on
03-04-2026

$396.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor/Lambda Probe

ES#3178414 - 13628589844 - Oxygen Sensor/Lambda Probe - Length = 415MM - Genuine BMW - BMW

Length = 415MM affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3178414
Mfg#:
13628589844
Ships in 1-2 days
3% off MSRP

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

$815.99

This product was last offered at the strikethrough price on
06-04-2026

$788.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Nitrogen Oxide Sensor (NOx Sensor)

ES#3193112 - 13628589845 - Nitrogen Oxide Sensor (NOx Sensor) - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
After catalyst.

Brand:
Genuine BMW - Corporate Logo
ES#:
3193112
Mfg#:
13628589845
Ships in 1-2 days
3% off MSRP

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

$815.99

This product was last offered at the strikethrough price on
06-04-2026

$788.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B58 Valve Cover - 11127645173

ES#4940665 - B34.750 - B58 Valve Cover - 11127645173 - Eliminate oil and vacuum leaks with a brand new valve cover - Elring - BMW

Eliminate oil and vacuum leaks with a brand new valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Elring - Corporate Logo
ES#:
4940665
Mfg#:
B34.750
Ships on Jun 23, 2026
$260.00 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Emission Parts

Repairing failed emission components doesn't just turn off the check engine light so you can pass your local emissions test, it also improves performance and fuel economy. ECS stocks all common emission controls, from oxygen sensors to PCV valves.

Other BMW Engine Emission Parts

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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