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BMW E46 Engine Emission Parts

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Upper Oil Separator Vent Tube

ES#3673407 - 11617533399 - Upper Oil Separator Vent Tube - Runs from the top of the oil separator up to intake manifold - Bremmen Parts - BMW

Runs from the top of the oil separator up to intake manifold 10X Entries For Our 25th Anniversary Sweepstakes!
For use in cold climates

Brand:
Bremmen Parts - Corporate Logo
ES#:
3673407
Mfg#:
11617533399
In Stock
ON SALE! SAVE 22%
$22.99

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

$17.94 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534730
Mfg#:
11151740393
Ships on Oct 5, 2026
Auto Notify
$5.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose

ES#25778 - 11617533398 - Crankcase Ventilation Hose - From oil separator to valve cover - Genuine BMW - BMW

From oil separator to valve cover For use in cold climates

Brand:
Genuine BMW - Corporate Logo
ES#:
25778
Mfg#:
11617533398
Ships in 4 Business Days
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Pump Control Valve (EGR)

ES#26818 - 11727553066 - Air Pump Control Valve (EGR) - Used for the control of the mixture of fuel & air - Genuine BMW - BMW

Used for the control of the mixture of fuel & air For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
26818
Mfg#:
11727553066
Ships in 4 Business Days
2% off MSRP

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

$194.99

This product was last offered at the strikethrough price on
07-20-2026

$190.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Mount - Priced Each

ES#26839 - 11727559515 - Secondary Air Pump Mount - Priced Each - 3 required per car - Genuine BMW - BMW

3 required per car

Brand:
Genuine BMW - Corporate Logo
ES#:
26839
Mfg#:
11727559515
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.

$28.99

This product was last offered at the strikethrough price on
07-20-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

Brand:
Genuine BMW - Corporate Logo
ES#:
25886
Mfg#:
11617831336
Ships in 3 Business Days
2% 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
07-20-2026

$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vent Hose

ES#19628 - 11157513756 - Vent Hose - Connects the intake manifold to the valve cover - Genuine BMW - BMW

Connects the intake manifold to the valve cover

Brand:
Genuine BMW - Corporate Logo
ES#:
19628
Mfg#:
11157513756
Ships in 3 Business Days
2% 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
07-20-2026

$181.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose

ES#2598765 - 11157532649 - Crankcase Ventilation Hose - From oil separator to dipstick tube - Rein - BMW

From oil separator to dipstick tube 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2598765
Mfg#:
11157532649
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - 990mm

ES#3031915 - 11787515826 - Oxygen Sensor - 990mm - Located at the top of the bank 1 exhaust header. - Bosch - BMW

Located at the top of the bank 1 exhaust header. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! For M56 Sulev Engines

Brand:
Bosch - Corporate Logo
ES#:
3031915
Mfg#:
11787515826
Special Order: No Guaranteed ETA
$177.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Valve

ES#2574724 - 11727837456 - Secondary Air Valve - Also known as an EGR valve - Pierburg - BMW

Also known as an EGR valve

Brand:
Pierburg - Corporate Logo
ES#:
2574724
Mfg#:
11727837456
In Stock at Vendor
$234.10

This product was last offered at the strikethrough price on
06-22-2026

$174.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 Oxygen Sensor

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

Brand:
Bosch - Corporate Logo
ES#:
3672517
Mfg#:
11787515827
In Stock at Vendor
$176.89

This product was last offered at the strikethrough price on
03-20-2026

$168.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#258928 - 11781247406 - Oxygen Sensor - Priced Each - 2 Required in each application - Bosch - BMW

2 Required in each application 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
258928
Mfg#:
11781247406
Ships on Jan 13, 2027
$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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. 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

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) For CA model M56 engines only

Brand:
Pierburg - Corporate Logo
ES#:
4070002
Mfg#:
11727573932
Ships on Aug 6, 2026
$158.04 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" 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

Crankcase Ventilation Dipstick Hose

ES#19637 - 11157532629 - Crankcase Ventilation Dipstick Hose - From oil separator to dipstick tube - Genuine BMW - BMW

From oil separator to dipstick tube For use in cold climates

Brand:
Genuine BMW - Corporate Logo
ES#:
19637
Mfg#:
11157532629
In Stock
ON SALE!
$38.99

This product was last offered at the strikethrough price on
06-15-2026

$37.15 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

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

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