Call Us330-331-2003 ChatLive Chat Text Us!
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle BMW E46 323Ci M52 2.5L

BMW E46 323Ci M52 2.5L Engine Emission Parts

Sort By
Filter By
Return to Top
ES#252546 - 11781433940 - Oxygen Sensor - Priced Each - 2 Required in each application - Bosch - BMW
ECS Tuning recommends this product.

2 Required in each application affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
252546
Mfg#:
11781433940
In Stock
$147.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4304179 - 11727553056 - Secondary Air Pump - Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir - URO - BMW

Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4304179
Mfg#:
11727553056
In Stock
$201.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4870454 - 11781742050 - Oxygen Sensor - Priced Each - 2 required in each application - URO - BMW

2 required in each application affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4870454
Mfg#:
11781742050
In Stock
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2574862 - 11727553056 - E46 Secondary Air Pump - Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir - Pierburg - BMW
ECS Tuning recommends this product.

Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
2574862
Mfg#:
11727553056
Ships in 1 day
$328.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#35479 - 13901433603 - Fuel Tank Breather Valve - Valve between charcoal canister and throttle body - Genuine BMW - BMW

Valve between charcoal canister and throttle body affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
35479
Mfg#:
13901433603
Ships in 3 Business Days
$120.89

This product was last offered at the strikethrough price on
01-07-2026

$120.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4643099 - MMR03-1501 - Billet Fuel Cap  - Upgraded fuel cap that adds the MMX style - MMX Performance - BMW MINI

Upgraded fuel cap that adds the MMX style affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For all convertible models. For coupe models with production date from 08/1999

Brand:
MMX Performance - Corporate Logo
ES#:
4643099
Mfg#:
MMR03-1501
Back Ordered
$136.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#25703 - 11617501566 - Crankcase Pressure Regulator Valve  - Commonly referred to as the "oil separator" or PCV - Genuine BMW - BMW

Commonly referred to as the "oil separator" or PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25703
Mfg#:
11617501566
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.

$102.99

This product was last offered at the strikethrough price on
02-18-2026

$96.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#26817 - 11727553063 - Air Pump Control Valve (EGR) - Attached to the secondary air pump - Genuine BMW - BMW

Attached to the secondary air pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26817
Mfg#:
11727553063
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.

$194.99

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

$188.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#254257 - 11747810831 - Vacuum Control Valve - Used in emissions and noise reduction systems - Genuine BMW - BMW MINI

Used in emissions and noise reduction systems affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
254257
Mfg#:
11747810831
Ships Today
10% off MSRP

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

$61.00

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

$54.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#37080 - 16131183906 - Activated Charcoal Canister - Also known as a charcoal filter - Genuine BMW - BMW

Also known as a charcoal filter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37080
Mfg#:
16131183906
Ships in 1-2 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.

$369.99

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

$355.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4904975 - BM-0006-BCG - Carbon Competition Fuel Cap Cover - Elevate the aesthetics of your BMW and leave no stone unturned; take your BMW to the next level with the AutoTecknic dry carbon fiber fuel cap cover. - AUTOTECKNIC - BMW MINI

Elevate the aesthetics of your BMW and leave no stone unturned; take your BMW to the next level with the AutoTecknic dry carbon fiber fuel cap cover. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4904975
Mfg#:
BM-0006-BCG
In Stock
$65.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4338487 - MMBCC-CBTWO - Two Port Universal Catch Can - Black - Mishimoto Compact Baffled Oil Catch Can - Mishimoto - BMW

Mishimoto Compact Baffled Oil Catch Can affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
4338487
Mfg#:
MMBCC-CBTWO
In Stock
$160.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5340306 - 16117222391 - Gas Cap - Complete with sealing gasket and tether. - Hamburg Tech - BMW MINI

Complete with sealing gasket and tether. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hamburg Tech - Corporate Logo
ES#:
5340306
Mfg#:
16117222391
In Stock
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2574625 - 11747810831 - Vacuum Control Valve - Used in emissions and noise reduction systems - Pierburg - BMW

Used in emissions and noise reduction systems affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
2574625
Mfg#:
11747810831
In Stock
$85.99

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

$50.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3691613 - 11727574490 - Secondary Air Pump Vacuum Line - Replacement line - Rein - BMW

Replacement line affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3691613
Mfg#:
11727574490
In Stock
$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#26414 - 11657803732 - Vacuum Hose - 1 Meter - Seal up your vacuum leak - Genuine BMW - BMW

Seal up your vacuum leak affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26414
Mfg#:
11657803732
In Stock
$72.99 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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings