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BMW Engine Emission Parts

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Crankcase Ventilation Connecting Pipe - Cylinders 5-8

ES#3493919 - 11157646087 - Crankcase Ventilation Connecting Pipe - Cylinders 5-8 - Connects the crankcase vent pipe to the valve cover. - Rein - BMW

Connects the crankcase vent pipe to the valve cover. 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#:
3493919
Mfg#:
11157646087
In Stock
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#4135539 - 11787848486 - Oxygen Sensor - Priced Each - Bosch - BMW

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#:
4135539
Mfg#:
11787848486
In Stock
$209.99

This product was last offered at the strikethrough price on
04-23-2026

$177.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#252546 - 11781433940 - Oxygen Sensor - Priced Each - 2 Required in each application - Bosch - BMW
ECS Tuning recommends this product.

2 Required in each application 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#:
252546
Mfg#:
11781433940
In Stock
$147.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump

ES#4304179 - 11727553056 - Secondary Air Pump - Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir - URO - BMW

Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir 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#:
4304179
Mfg#:
11727553056
In Stock
$201.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 4-Wire Oxygen Sensor - Priced Each

ES#2532224 - 15733 - Universal 4-Wire Oxygen Sensor - Priced Each - Four wire universal OBD-II Oxygen sensor - Bosch - Audi BMW Volkswagen

Four wire universal OBD-II Oxygen sensor 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#:
2532224
Mfg#:
15733
In Stock
$82.99

This product was last offered at the strikethrough price on
02-16-2026

$74.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Kit - Level 2

ES#3108046 - e46m54osw2kt2 - Oil Separator Kit - Level 2 - A truly complete kit for oil separator system maintenance, Includes ECS F-Connector - Assembled By ECS - 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 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3108046
Mfg#:
E46M54OSW2KT2
Ships on Jul 6, 2026
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ON SALE! SAVE 24%
$227.48

This product was last offered at the strikethrough price on
01-03-2026

$172.63 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E9X M3 Oxygen Sensor - Black

ES#2226210 - 11787539125 - E9X M3 Oxygen Sensor - Black - Located on the catalytic converters - Bosch - BMW
ECS Tuning recommends this product.

Located on the catalytic converters 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#:
2226210
Mfg#:
11787539125
In Stock
$155.99

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

$111.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Vent Hose

ES#3173528 - 11157559528 - Crankcase Vent Hose - For PCV system - Vaico - BMW
ECS Tuning recommends this product.

For PCV system 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#:
3173528
Mfg#:
11157559528
In Stock at Vendor
$86.99

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

$84.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gen 1 B58 PCV Pressure Control Valve Repair Kit

ES#4635792 - 11121025447 - Gen 1 B58 PCV Pressure Control Valve Repair Kit - BMW's solution for the dreaded B58 PCV failure - Genuine BMW - BMW

BMW's solution for the dreaded B58 PCV failure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
4635792
Mfg#:
11121025447
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.

$308.99

This product was last offered at the strikethrough price on
06-03-2026

$288.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Connecting Pipe - Cylinders 1-4

ES#3493917 - 11157646086 - Crankcase Ventilation Connecting Pipe - Cylinders 1-4 - Connects the crankcase vent pipe to the valve cover. - Rein - BMW

Connects the crankcase vent pipe to the valve cover. 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#:
3493917
Mfg#:
11157646086
In Stock
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Blow-By Vent Hose

ES#19642 - 11157553949 - Blow-By Vent Hose - For PCV system - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
19642
Mfg#:
11157553949
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.

$89.95

This product was last offered at the strikethrough price on
03-08-2026

$85.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crank case vent hose

ES#4151169 - 11127584128 - Crank case vent hose - Connects to the CCV on the valve cover - Rein - BMW

Connects to the CCV on the valve cover 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#:
4151169
Mfg#:
11127584128
In Stock
$57.99

This product was last offered at the strikethrough price on
03-25-2026

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMS Oil Catch Can Kit - Gen2 B58

ES#4715056 - BMS-CC-GB58 - BMS Oil Catch Can Kit - Gen2 B58 - Retain factory closed loop PCV operation while keeping your intake clean and engine running at its best! - Burger Motorsports - BMW

Retain factory closed loop PCV operation while keeping your intake clean and engine running at its best! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4715056
Mfg#:
BMS-CC-GB58
In Stock
Starting at $248.00 USD
Customize
Free Shipping
on orders $49 and up

Oxygen Sensor - Rear

ES#2992472 - 11787589122 - Oxygen Sensor - Rear - Fuel control and emissions sensor - Bosch - BMW

Fuel control and emissions sensor 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#:
2992472
Mfg#:
11787589122
In Stock at Vendor
$168.99

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

$163.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

F8X Baffled Oil Catch Can - Black

ES#4069979 - MMBCC-F80-15CBE - F8X Baffled Oil Catch Can - Black - Direct fit for the 20152020 F8X BMW M3 and M4 - Mishimoto - BMW

Direct fit for the 2015–2020 F8X BMW M3 and M4 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
4069979
Mfg#:
MMBCC-F80-15CBE
In Stock
$306.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor/Lambda Probe - 415mm

ES#4840199 - 13628589844 - Oxygen Sensor/Lambda Probe - 415mm - Oxygen sensors measure exhaust oxygen. Their signals are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. Degraded oxygen sensors reduce engine performance and fuel efficiency, and increase harmful tailpipe emissions. - Vitesco Technologies - BMW

Oxygen sensors measure exhaust oxygen. Their signals are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. Degraded oxygen sensors reduce engine performance and fuel efficiency, and increase harmful tailpipe emissions. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vitesco Technologies - Corporate Logo
ES#:
4840199
Mfg#:
13628589844
In Stock
Limited Qty Sale
$433.99

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

$403.99 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

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

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