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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Engine Emission Parts

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Secondary Air Pump Vacuum Line

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

Replacement line 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3691613
Mfg#:
11727574490
Ships in 3 Business Days
ON SALE!
$27.99

This product was last offered at the strikethrough price on
08-31-2026

$26.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

ES#2681738 - 16117222391 - Gas Cap - Original equipment gas cap - while supplies last! - Original Equipment Supplier - BMW MINI

Original equipment gas cap - while supplies last!

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
2681738
Mfg#:
16117222391
Ships on Mar 1, 2027
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Suction Jet Pump

ES#25798 - 11617545382 - Suction Jet Pump - A common source for vacuum leaks - Genuine BMW - BMW

A common source for vacuum leaks

Brand:
Genuine BMW - Corporate Logo
ES#:
25798
Mfg#:
11617545382
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.

$87.99

This product was last offered at the strikethrough price on
09-07-2026

$85.99 USD
Free Shipping
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 Into Our F80 M3 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

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
ON SALE! SAVE 20%
$24.99

This product was last offered at the strikethrough price on
09-03-2026

$19.99 USD
Free Shipping
on orders $49 and up
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

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 1

ES#260025 - e46m5411_61 - Oil Separator Kit - Level 1 - The most commonly replaced components in your breather system - Assembled By ECS - BMW

The most commonly replaced components in your breather system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
260025
Mfg#:
E46M5411_61
In Stock
ON SALE! SAVE 24%
$123.99

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

$93.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Pressure Regulator Valve

ES#4304692 - 11617501566 - Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" or PCV - Bavarian Autosport - BMW

Commonly referred to as the "oil separator" or PCV 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304692
Mfg#:
11617501566
In Stock
ON SALE! SAVE 20%
$32.99

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

$26.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Distributor

ES#25494 - 11611440318 - Air Distributor - Located on top of the intake manifold. Includes new o-rings. - Genuine BMW - BMW

Located on top of the intake manifold. Includes new o-rings.

Brand:
Genuine BMW - Corporate Logo
ES#:
25494
Mfg#:
11611440318
Ships in 6 Business Days
$127.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose Kit

ES#2785228 - 11617533398K - Crankcase Ventilation Hose Kit - Hose kit for your Crankcase ventilation system - Rein - BMW

Hose kit for your Crankcase ventilation system 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2785228
Mfg#:
11617533398K
In Stock at Vendor
ON SALE!
$98.99

This product was last offered at the strikethrough price on
08-31-2026

$94.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Two Port Universal Catch Can - Black

ES#4338487 - MMBCC-CBTWO - Two Port Universal Catch Can - Black - Mishimoto Compact Baffled Oil Catch Can - Mishimoto - BMW

Mishimoto Compact Baffled Oil Catch Can

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

Oil Dipstick Guide Tube

ES#24241 - 11437531258 - Oil Dipstick Guide Tube - The guide tube for the dipstick - Genuine BMW - BMW

The guide tube for the dipstick

Brand:
Genuine BMW - Corporate Logo
ES#:
24241
Mfg#:
11437531258
Ships in 4 Business Days
5% off MSRP

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

$168.99

This product was last offered at the strikethrough price on
09-07-2026

$160.99 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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3699049
Mfg#:
13901433603
Ships in 1 Business Day
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

"Cold Climate" Crankcase Pressure Regulator Valve Kit

ES#4783145 - 11617533400S1 - "Cold Climate" Crankcase Pressure Regulator Valve Kit - Replace your cracked breather hoses and crankcase pressure valve with all new components! - Hamburg Tech - BMW

Replace your cracked breather hoses and crankcase pressure valve with all new components! We Price Match - Give Us A Call or Chat! Superior performance for both warm and cold climates

Brand:
Hamburg Tech - Corporate Logo
ES#:
4783145
Mfg#:
11617533400S1
In Stock
ON SALE! SAVE 10%
$110.95

This product was last offered at the strikethrough price on
08-26-2026

$99.86 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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4668844
Mfg#:
16136756440
In Stock
Limited Qty Sale
$153.99

This product was last offered at the strikethrough price on
08-26-2026

$130.99 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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