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BMW E46 325Ci M54 2.5L

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BMW E46 325Ci M54 2.5L Engine Emission Parts

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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. 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 on Sep 28, 2026
Auto Notify
$756.99

This product was last offered at the strikethrough price on
03-21-2026

$701.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 Activated Charcoal Filter

ES#37255 - 16136765271 - E46 Activated Charcoal Filter - Also known as a "charcoal canister" - Genuine BMW - BMW

Also known as a "charcoal canister"

Brand:
Genuine BMW - Corporate Logo
ES#:
37255
Mfg#:
16136765271
In Stock
ON SALE!
$355.99

This product was last offered at the strikethrough price on
06-25-2026

$339.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Elbow

ES#25809 - 11617547582 - Hose Elbow - Prevent vacuum leaks in the emission system - Genuine BMW - BMW

Prevent vacuum leaks in the emission system

Brand:
Genuine BMW - Corporate Logo
ES#:
25809
Mfg#:
11617547582
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Front Manifold

ES#261729 - 11787514926 - Oxygen Sensor - Front Manifold - Located in the rear position of the exhaust manifold - Bosch - BMW

Located in the rear position of the exhaust manifold 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 03/2003

Brand:
Bosch - Corporate Logo
ES#:
261729
Mfg#:
11787514926
In Stock at Vendor
$157.99

This product was last offered at the strikethrough price on
04-09-2026

$152.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose

ES#4316512 - 11611432559 - Crankcase Ventilation Hose - From oil separator to valve cover - Bremmen Parts - BMW

From oil separator to valve cover 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4316512
Mfg#:
11611432559
In Stock
ON SALE! SAVE 22%
$23.99

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

$18.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Suction Pump

ES#2813546 - 11617545382 - Suction Pump - A common source for vacuum leaks - Hamburg Tech - BMW

A common source for vacuum leaks We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813546
Mfg#:
11617545382
In Stock
ON SALE!
$43.99

This product was last offered at the strikethrough price on
07-14-2026

$42.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AAF M54 Breather Catch Can

ES#4504828 - 116120 - AAF M54 Breather Catch Can - Includes Mounting Brackets & Hardware - Advanced Auto Fabrication - BMW

Includes Mounting Brackets & Hardware

Brand:
Advanced Auto Fabrication - Corporate Logo
ES#:
4504828
Mfg#:
116120
Ships in 3 Business Days
$195.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump

ES#26840 - 11727571589 - Secondary Air Pump - Common source of emissons related issues - Genuine BMW - BMW

Common source of emissons related issues For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
26840
Mfg#:
11727571589
Ships in 1-2 days
6% off MSRP

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

$622.99

This product was last offered at the strikethrough price on
07-22-2026

$584.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Tank Breather Valve

ES#3699049 - 13901433603 - Fuel Tank Breather Valve - Valve between charcoal canister and throttle body - URO - BMW

Valve between charcoal canister and throttle body 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3699049
Mfg#:
13901433603
Ships in 3 Business Days
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Oil Separator Vent Tube

ES#4338782 - 11617504535 - Upper Oil Separator Vent Tube - Runs from the top of the oil separator up to intake manifold. - Bavarian Autosport - BMW

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

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4338782
Mfg#:
11617504535
In Stock
ON SALE! SAVE 20%
$24.99

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

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump - Priced Each

ES#37298 - 16137193479 - Leak Detection Pump - Priced Each - Located under the vehicle, near the transmission bellhousing or in the rear. Used to diagnose leaks in the evap system. - Genuine BMW - BMW MINI

Located under the vehicle, near the transmission bellhousing or in the rear. Used to diagnose leaks in the evap system. For vehicles with production date from 09/2001

Brand:
Genuine BMW - Corporate Logo
ES#:
37298
Mfg#:
16137193479
Ships in 3 Business Days
6% off MSRP

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

$266.99

This product was last offered at the strikethrough price on
07-22-2026

$250.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Front Manifold

ES#27247 - 11787523434 - Oxygen Sensor - Front Manifold - Located in the front position of the exhaust manifold - Genuine BMW - BMW

Located in the front position of the exhaust manifold For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
27247
Mfg#:
11787523434
Ships in 1-2 days
6% off MSRP

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

$524.99

This product was last offered at the strikethrough price on
07-22-2026

$493.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Rear Manifold

ES#27248 - 11787523435 - Oxygen Sensor - Rear Manifold - Located in the front position of the exhaust manifold - Genuine BMW - BMW

Located in the front position of the exhaust manifold For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
27248
Mfg#:
11787523435
Ships in 3 Business Days
6% off MSRP

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

$524.99

This product was last offered at the strikethrough price on
07-22-2026

$493.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 10AN ORB To 3/8" Barb

ES#4460630 - rad20-0530 - Universal 10AN ORB To 3/8" Barb - This PCV can be used on the outlet of any Radium Engineering catch can - Radium Engineering - Audi BMW Volkswagen Mercedes Benz MINI Porsche

This PCV can be used on the outlet of any Radium Engineering catch can

Brand:
Radium Engineering - Corporate Logo
ES#:
4460630
Mfg#:
RAD20-0530
In Stock
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Kit - Level 1

ES#2622539 - 11727553056KT3 - Secondary Air Pump Kit - Level 1 - This essential kit includes the secondary air pump, control valve, hoses and hardware to mount pump and valve. - Assembled By ECS - BMW

This essential kit includes the secondary air pump, control valve, hoses and hardware to mount pump and valve. 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 03/2003

Brand:
Assembled By ECS - Corporate Logo
ES#:
2622539
Mfg#:
11727553056KT3
Ships in 4 Business Days
$473.99

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

$466.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Vacuum Line

ES#26851 - 11727574490 - Secondary Air Pump Vacuum Line - Replacement line - Genuine BMW - BMW

Replacement line

Brand:
Genuine BMW - Corporate Logo
ES#:
26851
Mfg#:
11727574490
In Stock
3% off MSRP

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

$58.99

This product was last offered at the strikethrough price on
07-22-2026

$56.99 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.

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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