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BMW E46 Engine Emission Parts

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Upper Oil Separator Vent Tube

ES#2762630 - 11617504535 - Upper Oil Separator Vent Tube - Runs from the top of the oil separator up to intake manifold. Made in Germany. - Rein - BMW

Runs from the top of the oil separator up to intake manifold. Made in Germany. 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!
For vehicles with production date from 01/2000

Brand:
Rein - Corporate Logo
ES#:
2762630
Mfg#:
11617504535
Ships in 2 Business Days
$22.99 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

CSL Crankcase Vent Hose - AN Lines and Fittings (00-04.5)

ES#4685366 - 043464LA02 - CSL Crankcase Vent Hose - AN Lines and Fittings (00-04.5) - 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!
For Vehicles Fitted with a CSL Intake Plenum

Brand:
Turner Motorsport - Corporate Logo
ES#:
4685366
Mfg#:
043464LA02
Ships on Aug 14, 2026
ON SALE! SAVE 22%
$175.09

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

EGR Valve Gasket

ES#26760 - 11727505259 - EGR Valve Gasket - Seals valve to the head - Genuine BMW - BMW

Seals valve to the head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
26760
Mfg#:
11727505259
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.

$13.99

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

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Screw With Flange - Priced Each

ES#14746 - 07119905546 - Hex Screw With Flange - Priced Each - M6x20 - Genuine BMW - BMW MINI

M6x20 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the oil seperator to the engine

Brand:
Genuine BMW - Corporate Logo
ES#:
14746
Mfg#:
07119905546
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing Grommet

ES#37081 - 16131183912 - Sealing Grommet - See MOQKT - Genuine BMW - BMW MINI

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

Brand:
Genuine BMW - Corporate Logo
ES#:
37081
Mfg#:
16131183912
In Stock at Vendor
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Secondary Air Injection Pipe - Control Valve to Vacuum Valve (In-between Vacuum Hoses)

ES#26849 - 11727574486 - E46 Secondary Air Injection Pipe - Control Valve to Vacuum Valve (In-between Vacuum Hoses) - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
26849
Mfg#:
11727574486
Ships in 3 Business 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.

$129.99

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

$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Vent Hose

ES#4818520 - 11157831311 - Crankcase Vent Hose - Runs from oil separator to the intake manifold - Bremmen Parts - BMW

Runs from oil separator 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#:
4818520
Mfg#:
11157831311
In Stock
ON SALE! SAVE 21%
$30.99

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

$24.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil level guide tube

ES#24242 - 11437531260 - Oil level guide tube - Replaces broken or bent dipstick tubes - Genuine BMW - BMW

Replaces broken or bent dipstick tubes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24242
Mfg#:
11437531260
Ships in 1-2 days
$130.99

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

$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Pump Valve

ES#4070002 - 11727573932 - Air Pump Valve - Restore your emissions systems to full working order (M56) - Pierburg - BMW

Restore your emissions systems to full working order (M56) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For CA model M56 engines only

Brand:
Pierburg - Corporate Logo
ES#:
4070002
Mfg#:
11727573932
In Stock
Limited Qty Sale
$144.99

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

$119.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2895524 - 11781247406 - Oxygen Sensor - Priced Each - 2 required in each application - Vemo - BMW

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

Brand:
Vemo - Corporate Logo
ES#:
2895524
Mfg#:
11781247406
Ships on Sep 28, 2026
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EVAP Pump Mass Air Flow Sensor

ES#4941249 - 11721438814 - EVAP Pump Mass Air Flow Sensor - Replacement for sensor that monitors the volume of air the EVAP pump takes in - Holstein - BMW

Replacement for sensor that monitors the volume of air the EVAP pump takes in affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Holstein - Corporate Logo
ES#:
4941249
Mfg#:
11721438814
Ships in 2 Business Days
$110.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Hose

ES#2515379 - 11727555680 - Pressure Hose - Runs from the air pump to the solenoid valve - URO - BMW

Runs from the air pump to the solenoid 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!
For vehicles with production date up to 03/2003

Brand:
URO - Corporate Logo
ES#:
2515379
Mfg#:
11727555680
Ships in 3 Business Days
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Hose Kit

ES#3108206 - 012178ECS01KT - Oil Separator Hose Kit - Assembled By ECS - BMW

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#:
3108206
Mfg#:
012178ECS01KT
Ships on Jul 6, 2026
Auto Notify
ON SALE! SAVE 25%
$143.99

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

$108.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Pump Mount - Priced Each

ES#26844 - 11727571866 - Air Pump Mount - Priced Each - Used to mount the air pump - Genuine BMW - BMW

Used to mount the air pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
26844
Mfg#:
11727571866
Ships in 4 Business Days
8% off MSRP

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

$37.99

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

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV System Oil Separator

ES#3188730 - 46103 - PCV System Oil Separator - Vacuum leaks and loss of power could mean that its time for a new cpvc valve. - Dorman - BMW

Vacuum leaks and loss of power could mean that its time for a new cpvc valve. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Dorman - Corporate Logo
ES#:
3188730
Mfg#:
46103
Ships in 5 Business Days
$104.99 USD
Free Shipping
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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