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BMW E46 325i M54 2.5L

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BMW E46 325i M54 2.5L Engine Emission Parts

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Billet Fuel Cap

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

Brand:
MMX Performance - Corporate Logo
ES#:
4643099
Mfg#:
MMR03-1501
Ships on Sep 11, 2026
$136.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Kit - Level 2

ES#2622506 - 11727571589KT - Secondary Air Pump Kit - Level 2 - This comprehensive air pump kit includes all lines, valves, pump, and hardware. - Genuine BMW - BMW

This comprehensive air pump kit includes all lines, valves, pump, and hardware. For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
2622506
Mfg#:
11727571589KT
Ships in 1 day
$1330.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 Secondary Air Pump

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 For vehicles with production date up to 03/2003

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

PCV Breather Hose Replacement Kit

ES#4783146 - 11617501566KT - PCV Breather Hose Replacement Kit - Replace Your Broken or Damaged PCV Hoses in This All-Inclusive Kit! - Hamburg Tech - BMW

Replace Your Broken or Damaged PCV Hoses in This All-Inclusive Kit! We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4783146
Mfg#:
11617501566KT
In Stock
$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

ES#5340306 - 16117222391 - Gas Cap - Complete with sealing gasket and tether. - Hamburg Tech - BMW MINI

Complete with sealing gasket and tether.

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

Crankcase Ventilation Hose Kit

ES#2785230 - 11617504535K - Crankcase Ventilation Hose Kit - Hose kit to perform a CCV refresh - Rein - BMW

Hose kit to perform a CCV refresh 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2785230
Mfg#:
11617504535K
Ships in 1 Business Day
$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Pressure Regulator Valve

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

Brand:
Genuine BMW - Corporate Logo
ES#:
25703
Mfg#:
11617501566
Ships in 1 day
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
08-19-2026

$96.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Hose - 1 Meter

ES#26414 - 11657803732 - Vacuum Hose - 1 Meter - Seal up your vacuum leak - Genuine BMW - BMW

Seal up your vacuum leak

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

Carbon Competition Fuel Cap Cover

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.

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

Secondary Air Pump Vacuum Line

ES#3691613 - 11727574490 - Secondary Air Pump Vacuum Line - Replacement line - Rein - BMW

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

Brand:
Rein - Corporate Logo
ES#:
3691613
Mfg#:
11727574490
In Stock
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump

ES#4668844 - 16136756440 - Leak Detection Pump - Located under the vehicle, near the transmission bellhousing or in the rear. - URO - BMW

Located under the vehicle, near the transmission bellhousing or in the rear. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4668844
Mfg#:
16136756440
In Stock
$153.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Activated Charcoal Canister

ES#37080 - 16131183906 - Activated Charcoal Canister - Also known as a charcoal filter - Genuine BMW - BMW

Also known as a charcoal filter

Brand:
Genuine BMW - Corporate Logo
ES#:
37080
Mfg#:
16131183906
Ships in 1 day
3% 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
08-19-2026

$357.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Control Valve

ES#2574625 - 11747810831 - Vacuum Control Valve - Used in emissions and noise reduction systems - Pierburg - BMW

Used in emissions and noise reduction systems

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

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Kit - Level 2

ES#3108048 - E46M54OSW3KT2 - Oil Separator Kit - Level 2 - A truly complete kit for oil separator system maintenance, Includes ECS F-Connector - Assembled By ECS - BMW

A truly complete kit for oil separator system maintenance, Includes ECS F-Connector 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3108048
Mfg#:
E46M54OSW3KT2
In Stock
ON SALE! SAVE 23%
$226.99

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

$174.78 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Kit - Level 1

ES#2622524 - 11727553056KT2 - Secondary Air Pump Kit - Level 1 - This essential kit includes the secondary air pump, control valve, hoses and hardware to mount pump and valve. - Genuine BMW - BMW

This essential kit includes the secondary air pump, control valve, hoses and hardware to mount pump and valve. For vehicles with production date up to 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
2622524
Mfg#:
11727553056KT2
Ships in 1 day
$1025.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Control Valve

ES#4069996 - 11611312737 - Vacuum Control Valve - Common source of emission related issues - Pierburg - BMW

Common source of emission related issues

Brand:
Pierburg - Corporate Logo
ES#:
4069996
Mfg#:
11611312737
Ships in 9 Business Days
Auto Notify
$27.99

This product was last offered at the strikethrough price on
08-16-2026

$26.99 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.

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

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