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BMW 328i Engine Emission Parts

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Performance Oil Separator Kit

ES#5443594 - 059015LA02KT - Performance Oil Separator Kit - Includes a new separator, Turner Motorsport silicone breather hose, return hose, and hardware. - Assembled By ECS - BMW

Includes a new separator, Turner Motorsport silicone breather hose, return hose, and hardware. 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#:
5443594
Mfg#:
059015LA02KT
Ships on Sep 4, 2026
Auto Notify
ON SALE! SAVE 20%
$104.96

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

$83.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Vent Pipe

ES#2571817 - 11127588417 - PCV Vent Pipe - Connects to the PCV outlet on the valve cover - Genuine BMW - BMW

Connects to the PCV outlet on the valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2571817
Mfg#:
11127588417
In Stock
5% off MSRP

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

$72.41

This product was last offered at the strikethrough price on
03-04-2026

$68.65 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Kit - Level 1

ES#2684822 - 11151703484KT1 - Oil Separator Kit - Level 1 - Includes a new separator, hoses, and hardware - Genuine BMW - BMW

Includes a new separator, hoses, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2684822
Mfg#:
11151703484KT1
Ships Today
$185.99

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

$184.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#27153 - 11781433940 - Oxygen Sensor - Priced Each - 2 Required in each application - Genuine BMW - BMW

2 Required in each application affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
27153
Mfg#:
11781433940
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.

$404.99

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

$369.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#27124 - 11781247406 - Oxygen Sensor - Priced Each - 2 required in each application - Genuine BMW - BMW

2 required in each application affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
27124
Mfg#:
11781247406
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.

$404.99

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

$369.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mounting Grommet - Priced Each

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 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#:
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

Secondary Air Pump Kit - Level 2

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

$704.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Hose - Pump To Valve

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 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! 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

Rear Oxygen Sensor - Bank 2 Post-Cat

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

Return Pipe

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

Oxygen Sensor - Rear

ES#4609903 - 11787589122 - Oxygen Sensor - Rear - Fuel control and emissions sensor - Vemo - BMW

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

Brand:
Vemo - Corporate Logo
ES#:
4609903
Mfg#:
11787589122
In Stock
$131.99

This product was last offered at the strikethrough price on
03-27-2026

$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Control Valve

ES#4070001 - 11727557909 - Secondary Air Injection Control Valve - Controls the flow of clean air into your exhaust manifold - Pierburg - BMW

Controls the flow of clean air into your exhaust manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
4070001
Mfg#:
11727557909
Ships in 1 day
$157.58 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Dipstick Guide Tube

ES#24241 - 11437531258 - Oil Dipstick Guide Tube - The guide tube for the dipstick - Genuine BMW - BMW

The guide tube for the dipstick affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24241
Mfg#:
11437531258
In Stock
7% off MSRP

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

$168.99

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

$156.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose Kit

ES#2785228 - 11617533398K - Crankcase Ventilation Hose Kit - Hose kit for your Crankcase ventilation system - Rein - BMW

Hose kit for your Crankcase ventilation system 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#:
2785228
Mfg#:
11617533398K
In Stock at Vendor
$98.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap - Non Locking

ES#3022159 - 16111184718 - Gas Cap - Non Locking - Includes sealing gasket - Blau - BMW

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

Brand:
Blau - Corporate Logo
ES#:
3022159
Mfg#:
16111184718
Ships in 1 Business Day
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/CCV Kit

ES#4342960 - 11151703484KIT - Oil Separator/CCV Kit - Includes a new separator and hoses - Febi - BMW

Includes a new separator and hoses 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:
Febi - Corporate Logo
ES#:
4342960
Mfg#:
11151703484KIT
In Stock
$96.99

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

$82.99 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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