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BMW Engine Emission Parts

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ES#3978848 - 11617501562KT - Crank Case Vent Valve Kit - Includes new mounting bolts and gasket - Assembled By ECS - BMW

Includes new mounting bolts and gasket 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#:
3978848
Mfg#:
11617501562KT
Ships in 2 Business Days
ON SALE!
$71.99

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

$65.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4726411 - AS815M - Oil Separator Valve - A common part to fail in cold weather - Hengst - BMW
ECS Tuning recommends this product.

A common part to fail in cold weather affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Hengst - Corporate Logo
ES#:
4726411
Mfg#:
AS815M
Ships on Jun 29, 2026
$64.99 USD
Free Shipping
on orders $49 and up
ES#4316396 - 11787539136 - 
Oxygen Sensor - Rear O2 sensor/Lambda probe. 600mm. - Bosch - BMW

Rear O2 sensor/Lambda probe. 600mm. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4316396
Mfg#:
11787539136
Special Order: No Guaranteed ETA
$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3188717 - 46063 - Crankcase Pressure Regulator Valve and Oil Separator - Commonly referred to as the "oil separator" or PCV - Dorman - BMW

Commonly referred to as the "oil separator" or PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Dorman - Corporate Logo
ES#:
3188717
Mfg#:
46063
In Stock
Limited Qty Sale
$76.70

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

$63.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#66309 - 37131159544 - E31 Return Pipe - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
66309
Mfg#:
37131159544
Ships in 8 Business Days
2% off MSRP

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

$63.99

This product was last offered at the strikethrough price on
06-05-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#25314 - 11611270630 - Vent Hose - Connects from top of aux. air slide valve to cold start injector - Genuine BMW - BMW

Connects from top of aux. air slide valve to cold start injector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/1979

Brand:
Genuine BMW - Corporate Logo
ES#:
25314
Mfg#:
11611270630
Ships in 2 Business Days
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2867372 - 11617533400 - "Cold Climate" Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" or PCV - Febi - BMW

Commonly referred to as the "oil separator" or PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Superior performance for both warm and cold climates

Brand:
Febi - Corporate Logo
ES#:
2867372
Mfg#:
11617533400
Ships in 1 Business Day
$72.99

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

$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2534628 - 11151703484 - Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator"  - URO - BMW

Commonly referred to as the "oil separator" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534628
Mfg#:
11151703484
Ships in 1 Business Day
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2813540 - 11617531423 - Oil Separator Valve - A common part to fail in cold weather - Hamburg Tech - BMW

A common part to fail in cold weather affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813540
Mfg#:
11617531423
Ships in 1 Business Day
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#26766 - 11727508048 - Secondary Air Injection Hose - Pump to Valve - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
26766
Mfg#:
11727508048
Ships in 2 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.

$61.99

This product was last offered at the strikethrough price on
06-05-2026

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2718290 - 11151705301 - Crank Case Breather Pipe - Used to connect the oil separator to the crank case vent - Vaico - BMW

Used to connect the oil separator to the crank case vent affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1998

Brand:
Vaico - Corporate Logo
ES#:
2718290
Mfg#:
11151705301
Ships in 1-2 days
$61.99

This product was last offered at the strikethrough price on
05-06-2026

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2681132 - 11157545772KT - Bracket - Pack Of 10 - Holds hoses in place - Genuine BMW - BMW

Holds hoses in place affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2681132
Mfg#:
11157545772KT
Ships in 8 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4732882 - 555471010 - AdBlue - 2.5 Gallons / 9.46 Liters - OE# G052910A2 - Comes with integrated funnel to help avoid any spilling - Febi - Audi BMW Volkswagen

Comes with integrated funnel to help avoid any spilling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Compatible with diesel BMW's urea systems, used to reduce NOx emissions.

Brand:
Febi - Corporate Logo
ES#:
4732882
Mfg#:
555471010
In Stock at Vendor
$35.99

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

$29.99 USD
Free Shipping
on orders $49 and up
ES#25490 - 11611440126 - Vacuum Hose - Runs from the base of the brake booster check valve to the intake manifold - Genuine BMW - BMW

Runs from the base of the brake booster check valve to the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25490
Mfg#:
11611440126
Ships in 2 Business Days
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#26670 - 11721438813 - Secondary air pump filter  - Filter the air from the secondary air pump - Genuine BMW - BMW

Filter the air from the secondary air pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
26670
Mfg#:
11721438813
Ships in 5 Business Days
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#254248 - 11717786146 - Collar Band Clamp - Priced Each - Used in multiple BMW for regulators and EGR pipes - Genuine BMW - BMW

Used in multiple BMW for regulators and EGR pipes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
254248
Mfg#:
11717786146
In Stock
6% off MSRP

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

$15.99

This product was last offered at the strikethrough price on
06-05-2026

$14.99 USD
Free Shipping
on orders $49 and up
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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