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BMW Engine Emission Parts

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ES#4609320 - 11151705272b - Oil Separator - Crankcase Ventilation System - Connects to the vent tube which is attached to the PCV valve - Bremmen Parts - BMW

Connects to the vent tube which is attached to the PCV valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with production date from 09/1998

Brand:
Bremmen Parts - Corporate Logo
ES#:
4609320
Mfg#:
11151705272B
In Stock
ON SALE! SAVE 17%
$22.99

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

$19.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2534479 - 13411733217 - Mounting Grommet - Priced Each - Rubber grommet that helps hold oil seperator or Idle Control Valve - URO - BMW

Rubber grommet that helps hold oil seperator or Idle Control Valve 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#:
2534479
Mfg#:
13411733217
In Stock
$12.99

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

$12.65 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4069420 - 11727557910 - Secondary Air Injection Hose - Pump To Valve - Connects the air pump to the cold start valve. - Rein - BMW

Connects the air pump to the cold start valve. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat! This fits the N51 SULEV Engine Only

Brand:
Rein - Corporate Logo
ES#:
4069420
Mfg#:
11727557910
In Stock
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5445538 - VTT-N54-UPCVVK - PCV Cover & Valve Upgrade - Ensures a superior seal that can withstand the high-pressure environments of tuned and high-horsepower N54 engines. - Vargas Turbo Technologies - BMW

Ensures a superior seal that can withstand the high-pressure environments of tuned and high-horsepower N54 engines. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5445538
Mfg#:
VTT-N54-UPCVVK
Ships in 10 Business Days
$64.99 USD
Free Shipping
ES#3621813 - e46m54osw2kt3 - Oil Separator Kit - Level 2  - A truly complete kit for oil separator system maintenance, Includes ECS F-Connector - Genuine BMW - BMW

A truly complete kit for oil separator system maintenance, Includes ECS F-Connector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3621813
Mfg#:
E46M54OSW2KT3
Ships in 3 Business Days
$357.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4304670 - 11617504536 - Return Pipe - Runs from the intake manifold back to connecting hose - Bavarian Autosport - BMW

Runs from the intake manifold back to connecting hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 01/2000

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304670
Mfg#:
11617504536
In Stock
ON SALE! SAVE 20%
$26.99

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

$21.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#28371 - 12141712970 - E38 Catalytic Converter Control Unit - Relays catalyst information to the ECU - Genuine BMW - BMW

Relays catalyst information to the ECU affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
28371
Mfg#:
12141712970
Ships in 1-2 days
4% off MSRP

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

$738.99

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

$710.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3625133 - 11787545075 - Rear Oxygen Sensor - Bank 2 Post-Cat - Fuel control and emissions control sensor - FAE - BMW

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

Brand:
FAE - Corporate Logo
ES#:
3625133
Mfg#:
11787545075
In Stock
$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4876889 - 13907831770 - Fuel Tank Breather Valve - Fix that rough idle! - Bremmen Parts - BMW

Fix that rough idle! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4876889
Mfg#:
13907831770
In Stock
ON SALE! SAVE 20%
$80.99

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

$64.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2622492 - 11727553056KT1 - Secondary Air Pump Kit - Level 2 - This comprehensive air pump kit includes all lines, valves, pump, and hardware. - Assembled By ECS - BMW

This comprehensive air pump kit includes all lines, valves, pump, and hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 03/2003

Brand:
Assembled By ECS - Corporate Logo
ES#:
2622492
Mfg#:
11727553056KT1
Ships in 6 Business Days
$756.99

This product was last offered at the strikethrough price on
03-21-2026

$708.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2622518 - 11727571589KT1 - Secondary Air Pump Kit - Level 2 - This comprehensive air pump kit includes all lines, valves, pump, and hardware. - Assembled By ECS - BMW

This comprehensive air pump kit includes all lines, valves, pump, and hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 03/2003

Brand:
Assembled By ECS - Corporate Logo
ES#:
2622518
Mfg#:
11727571589KT1
Ships in 6 Business Days
$746.99

This product was last offered at the strikethrough price on
03-21-2026

$700.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3172506 - 18307807206 - SCR Metering Valve - Replace your faulty valve - Bosch - BMW

Replace your faulty valve 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#:
3172506
Mfg#:
18307807206
In Stock at Vendor
$359.99

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

$349.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2825780 - 11617531423KT3 - Oil Separator Service Kit - Includes valve and all necessary hoses - Genuine BMW - BMW

Includes valve and all necessary hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 10/2005

Brand:
Genuine BMW - Corporate Logo
ES#:
2825780
Mfg#:
11617531423KT3
Ships in 7 Business Days
$698.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4899517 - 11157840446 - Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" - Rein - 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:
Rein - Corporate Logo
ES#:
4899517
Mfg#:
11157840446
Ships in 1 Business Day
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#37273 - 16137162350 - Activated charcoal filter - Also known as a "charcoal canister" - Genuine BMW - BMW

Also known as a "charcoal canister" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37273
Mfg#:
16137162350
Ships in 5 Business Days
4% off MSRP

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

$237.99

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

$228.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4818548 - 11617559530 - Oil Separator Vent Hose - Should be replaced with the oil separator - Bremmen Parts - BMW

Should be replaced with the oil separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818548
Mfg#:
11617559530
In Stock
ON SALE! SAVE 20%
$42.99

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

$34.26 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

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Manufacturer names and/or part numbers are used only for identification purposes.

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