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BMW Engine Emission Parts

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Oil Separator Service Kit

ES#2825781 - 11617531423KT4 - Oil Separator Service Kit - Includes valve and all necessary hoses - Assembled By ECS - BMW

Includes valve and all necessary hoses 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 10/2005

Brand:
Assembled By ECS - Corporate Logo
ES#:
2825781
Mfg#:
11617531423KT4
Ships in 1 Business Day
ON SALE! SAVE 20%
$321.99

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

$256.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E34 Oxygen Sensor - Priced Each

ES#2848083 - 11781741317 - E34 Oxygen Sensor - Priced Each - The oxygen sensor located just before the catalytic converter - Bosch - BMW

The oxygen sensor located just before the catalytic converter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with manual transmission and production date from 06/1994

Brand:
Bosch - Corporate Logo
ES#:
2848083
Mfg#:
11781741317
Back Ordered
$131.99

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

$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brake Booster Check Valve

ES#25492 - 11611440135 - Brake Booster Check Valve - Located between the brake booster and the intake manifold - Genuine BMW - BMW

Located between the brake booster and the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25492
Mfg#:
11611440135
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.

$87.99

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

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

Air Injection Pump Hose - Pressure

ES#26831 - 11727556960 - Air Injection Pump Hose - Pressure - Pressure. Comes off the side of the air injection pump - Genuine BMW - BMW

Pressure. Comes off the side of the air injection pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26831
Mfg#:
11727556960
Ships in 7 Business 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.

$267.99

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

$253.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Left Oil Separator Vent Hose

ES#2778978 - 11151406953 - Left Oil Separator Vent Hose - Connects to the front of the left oil separator - Continental - BMW

Connects to the front of the left oil separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Found on cylinders 5-8

Brand:
Continental - Corporate Logo
ES#:
2778978
Mfg#:
11151406953
Back Ordered
Auto Notify
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E38 Oxygen Sensor - Priced Each

ES#3672450 - 11781704259 - E38 Oxygen Sensor - Priced Each - Located upstream of the catalytic converter - Bosch - BMW

Located upstream of the catalytic converter 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#:
3672450
Mfg#:
11781704259
In Stock
$126.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump

ES#4583556 - 11667791232 - Vacuum Pump - If your vacuum pump is noisy then it is only a matter of time before it fails. - Pierburg - BMW

If your vacuum pump is noisy then it is only a matter of time before it fails. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
4583556
Mfg#:
11667791232
Special Order: No Guaranteed ETA
$251.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CCV hose

ES#25832 - 11617563477 - CCV hose - Responsible for crank case ventilation - Genuine BMW - BMW

Responsible for crank case ventilation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with a production date from 11/2006+

Brand:
Genuine BMW - Corporate Logo
ES#:
25832
Mfg#:
11617563477
In Stock at Vendor
9% off MSRP

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

$269.99

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

$246.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Hose - Pump to Air Filter

ES#26836 - 11727557907 - Secondary Air Injection Hose - Pump to Air Filter - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
26836
Mfg#:
11727557907
Ships in 1-2 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.

$131.99

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

$122.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E70 X5 Front Oxygen Sensor - Bank 1 Pre-Cat

ES#3672516 - 11787557756 - E70 X5 Front Oxygen Sensor - Bank 1 Pre-Cat - 1540mm length - Bosch - BMW

1540mm length 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#:
3672516
Mfg#:
11787557756
In Stock at Vendor
$252.99

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

$244.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E30 M3 CCV hose

ES#19520 - 11151310811 - E30 M3 CCV hose - From the oil separator to the bottom of the manifold - Genuine BMW - BMW

From the oil separator to the bottom of the manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
19520
Mfg#:
11151310811
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.

$50.99

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

$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E70 Front Oxygen Sensor - Bank 2 Pre-Cat

ES#3031916 - 11787558081 - E70 Front Oxygen Sensor - Bank 2 Pre-Cat - 1050mm in length - Bosch - BMW

1050mm in length 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#:
3031916
Mfg#:
11787558081
In Stock at Vendor
$250.99

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

$243.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Kit - Level 2

ES#2765438 - 11151703484KT5 - Oil Separator Kit - Level 2 - A truly complete kit for oil separator system maintenance - Genuine BMW - BMW

A truly complete kit for oil separator system maintenance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/1998

Brand:
Genuine BMW - Corporate Logo
ES#:
2765438
Mfg#:
11151703484KT5
Ships in 2 Business Days
$243.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Mount

ES#2534428 - 11727559515 - Secondary Air Pump Mount - 3 required per car - URO - BMW

3 required per car 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#:
2534428
Mfg#:
11727559515
In Stock
$6.99

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

$4.71 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crank Case Vent Valve

ES#2779734 - 11617501563 - Crank Case Vent Valve - Also known as a PCV or CCV - Vaico - BMW

Also known as a PCV or CCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat! Common signs of failure include smoking on startup, rough idle, and sometimes a "Jetsons" noise from underhood at idle.

Brand:
Vaico - Corporate Logo
ES#:
2779734
Mfg#:
11617501563
In Stock at Vendor
$123.99

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

$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Right Bank

ES#2681535 - 11787530735 - Oxygen Sensor - Right Bank - Keep your engine running efficiently, with a new O2 sensor - Bosch - BMW

Keep your engine running efficiently, with a new O2 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#:
2681535
Mfg#:
11787530735
In Stock at Vendor
$244.99

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

$237.99 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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