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BMW M3 Engine Emission Parts

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E46 Vent Hose

ES#25886 - 11617831336 - E46 Vent Hose - Connects the intake to the vent pipe that connects to the dipstick hose - Genuine BMW - BMW

Connects the intake to the vent pipe that connects to the dipstick hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25886
Mfg#:
11617831336
Ships in 1 day
4% off MSRP

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

$47.99

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

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Pressure Regulator Valve

ES#2779658 - 11157840446 - Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" - Vaico - 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:
Vaico - Corporate Logo
ES#:
2779658
Mfg#:
11157840446
Ships on Sep 28, 2026
$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Hose

ES#2534730 - 11151740393 - PCV Hose - Connects the PCV to the oil dipstick tube - URO - BMW

Connects the PCV to the oil dipstick tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534730
Mfg#:
11151740393
In Stock
$5.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#19662 - 11157838370 - O-Ring - Priced Each - O-Ring for Oil Separator - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
19662
Mfg#:
11157838370
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.

$8.50

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

$7.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E90 M3 Secondary Air Injection Control Valve - Cylinder 1-4

ES#26876 - 11727838028 - E90 M3 Secondary Air Injection Control Valve - Cylinder 1-4 - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
26876
Mfg#:
11727838028
Ships in 1 day
9% off MSRP

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

$185.99

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

$169.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vent Pipe With Dust Filter

ES#37189 - 16132283491 - Vent Pipe With Dust Filter - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
37189
Mfg#:
16132283491
Ships in 2 Business Days
9% off MSRP

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

$186.99

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

$169.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E90 M3 Secondary Air Injection Control Valve - Cylinder 5-8

ES#26877 - 11727838029 - E90 M3 Secondary Air Injection Control Valve - Cylinder 5-8 - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
26877
Mfg#:
11727838029
Ships in 2 Business Days
9% off MSRP

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

$185.99

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

$169.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Catch Can O-ring

ES#3097721 - N1.50X051 - ECS Catch Can O-ring - Replacement ECS catch can O-ring - ECS - Audi BMW Volkswagen MINI

Replacement ECS catch can O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3097721
Mfg#:
N1.50X051
In Stock
ON SALE! SAVE 30%
$5.99

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

$4.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Tank Filler Cap

ES#2802981 - 16116750564 - Fuel Tank Filler Cap - Replace that poorly fitting gas cap - Rein - BMW

Replace that poorly fitting gas cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802981
Mfg#:
16116750564
In Stock
$25.99 USD
Free Shipping
on orders $49 and up

Fuel Tank Breather Hose - From Breather Valve

ES#2720467 - 13908602280 - Fuel Tank Breather Hose - From Breather Valve - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
2720467
Mfg#:
13908602280
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.

$81.00

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

$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Control Valve - Cylinder 1-4

This is the secondary air pump valve for E9x M3 with the S65 V8 engine. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
4070051
Mfg#:
11727838028
In Stock at Vendor
$150.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Pressure Regulator Valve

ES#4069284 - 11151703484 - 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 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069284
Mfg#:
11151703484
In Stock at Vendor
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E36 Air Pump Intake Hose

ES#26741 - 11721744246 - E36 Air Pump Intake Hose - Runs from air pump into the engine bay - Genuine BMW - BMW

Runs from air pump into the engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26741
Mfg#:
11721744246
Back Ordered
4% off MSRP

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

$154.99

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

$148.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E30 M3 Oxygen Sensor

ES#3023819 - 11781310838 - E30 M3 Oxygen Sensor - Located in the front portion of the center muffler assembly - Bosch - BMW

Located in the front portion of the center muffler assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3023819
Mfg#:
11781310838
In Stock at Vendor
$146.47 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Check Valve

ES#2574659 - 1168000378 - Vacuum Check Valve - Common source of emission related issues - Kayser - BMW Mercedes Benz

Common source of emission related issues affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Kayser - Corporate Logo
ES#:
2574659
Mfg#:
1168000378
In Stock at Vendor
$16.99

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

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CSL Crankcase Vent Hose - AN Lines and Fittings (04.5-06)

ES#4685682 - 043464LA03 - CSL Crankcase Vent Hose - AN Lines and Fittings (04.5-06) - A combination of billet fittings and AN lines for an upgraded and serviceable crankcase vent hose. Attaches between the oil separator and the CSL air box. - Turner Motorsport - BMW

A combination of billet fittings and AN lines for an upgraded and serviceable crankcase vent hose. Attaches between the oil separator and the CSL air box. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4685682
Mfg#:
043464LA03
Ships on Aug 14, 2026
ON SALE! SAVE 22%
$173.99

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

$135.99 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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