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BMW E90 Engine Emission Parts

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Rear Oxygen Sensor - Bank 1 Post-Cat

ES#4343214 - 11787526262 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - Febi - BMW

Fuel control and emissions control sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4343214
Mfg#:
11787526262
Ships on Sep 1, 2026
$124.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Vent Hose

ES#3173527 - 11157522931 - Crankcase Vent Hose - From oil separator to valve cover - Vaico - BMW

From oil separator to valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3173527
Mfg#:
11157522931
In Stock
$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Valve

ES#4069281 - 11617531423 - Oil Separator Valve - A common part to fail in cold weather - Rein - 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:
Rein - Corporate Logo
ES#:
4069281
Mfg#:
11617531423
Ships in 3 Business Days
$120.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Bank 2 Pre-Cat

ES#3625140 - 11787558073 - Oxygen Sensor - Bank 2 Pre-Cat - Located in the front position of the exhaust manifold - FAE - BMW

Located in the front position of the exhaust manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
3625140
Mfg#:
11787558073
Ships in 1 Business Day
$117.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Flapper Delete Fitting N54

ES#3617499 - VTT-FLAPPER-DELE - Flapper Delete Fitting N54 - Ditch the PCV flapper with this valve from Vargas. - Vargas Turbo Technologies - BMW

Ditch the PCV flapper with this valve from Vargas. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
3617499
Mfg#:
VTT-FLAPPER-DELE
Ships in 10 Business Days
$57.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 2 Post-Cat

ES#4460474 - 3148030031 - Rear Oxygen Sensor - Bank 2 Post-Cat - Fuel control and emissions control sensor - Meyle - BMW
ECS Tuning recommends this product.

Fuel control and emissions control sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4460474
Mfg#:
3148030031
Ships on Oct 14, 2026
$112.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose

ES#4759032 - 11157567802 - Crankcase Ventilation Hose - Located under intake manifold - URO - 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:
URO - Corporate Logo
ES#:
4759032
Mfg#:
11157567802
Ships in 1 Business Day
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#3647910 - 13547792098 - O-Ring - Priced Each - O-Ring for EGR - Victor Reinz - BMW

O-Ring for EGR affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
3647910
Mfg#:
13547792098
In Stock
$4.99

This product was last offered at the strikethrough price on
03-31-2026

$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Black

ES#3625129 - 11787539125 - Oxygen Sensor - Black - Located on the catalytic converters - FAE - BMW

Located on the catalytic converters affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
3625129
Mfg#:
11787539125
Ships on Jun 29, 2026
$108.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Backpressure Sensor - Priced Each

ES#254354 - 13627805758 - Exhaust Backpressure Sensor - Priced Each - (Differential Pressure Sensor) - Genuine BMW - BMW

(Differential Pressure Sensor) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
254354
Mfg#:
13627805758
Ships in 1 day
10% off MSRP

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

$122.99

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

$110.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Box

ES#254250 - 11717796883 - Vacuum Box - Part of the emissions control system - Genuine BMW - BMW

Part of the emissions control system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
254250
Mfg#:
11717796883
Ships in 1 day
6% off MSRP

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

$106.99

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

$100.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Vent Hose

ES#4342968 - 11157522931 - Crankcase Vent Hose - Runs from oil separator to the intake manifold - Febi - BMW

Runs from oil separator to the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4342968
Mfg#:
11157522931
Ships on Sep 1, 2026
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O Ring - Priced Each

ES#3618241 - 11617533329 - O Ring - Priced Each - Seals the PCV angle connector to the intake manifold - Bremmen Parts - BMW

Seals the PCV angle connector to the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3618241
Mfg#:
11617533329
In Stock
ON SALE! SAVE 30%
$6.99

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

$4.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Return Tube - Oil Pan to Crankcase Vent Hose

ES#24238 - 11437527133 - Engine Oil Return Tube - Oil Pan to Crankcase Vent Hose - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Also use: (Qty.) (1) 11 42 7 548 322 o-ring.

Brand:
Genuine BMW - Corporate Logo
ES#:
24238
Mfg#:
11437527133
In Stock
10% off MSRP

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

$20.99

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

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Valve Gasket - Priced Each

ES#2602997 - 11727506214 - Secondary Air Pump Valve Gasket - Priced Each - Goes between the valve and intake tube - Victor Reinz - BMW

Goes between the valve and intake tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
2602997
Mfg#:
11727506214
Ships Today
$7.30

This product was last offered at the strikethrough price on
05-29-2026

$7.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#254346 - 13547792098 - O-Ring - Priced Each - O-Ring for EGR - Genuine BMW - BMW

O-Ring for EGR affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
254346
Mfg#:
13547792098
In Stock
Limited Qty Sale
$33.99

This product was last offered at the strikethrough price on
05-13-2026

$30.99 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.

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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