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BMW Z4 3.0Si N52 3.0L

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BMW Z4 3.0Si N52 3.0L Engine Emission Parts

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Oil Separator Valve

ES#25772 - 11617531423 - Oil Separator Valve - A common part to fail in cold weather - Genuine BMW - BMW

A common part to fail in cold weather

Brand:
Genuine BMW - Corporate Logo
ES#:
25772
Mfg#:
11617531423
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.

$148.99

This product was last offered at the strikethrough price on
07-21-2026

$139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Vent Hose

ES#3673425 - 11157522931 - Crankcase Vent 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#:
3673425
Mfg#:
11157522931
In Stock
ON SALE! SAVE 20%
$40.99

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

$32.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Catch Can O-ring

ES#3097721 - N1.50X051 - ECS Catch Can O-ring - Replacement ECS catch can O-ring - ECS - Audi BMW Volkswagen MINI

Replacement ECS catch can O-ring 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3097721
Mfg#:
N1.50X051
In Stock
ON SALE! SAVE 25%
$5.99

This product was last offered at the strikethrough price on
06-13-2026

$4.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump Sprocket

ES#23604 - 11417516128 - Vacuum Pump Sprocket - The main drive cog for the vacuum pump. - Genuine BMW - BMW

The main drive cog for the vacuum pump.

Brand:
Genuine BMW - Corporate Logo
ES#:
23604
Mfg#:
11417516128
Ships in 4 Business Days
3% off MSRP

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

$33.00

This product was last offered at the strikethrough price on
07-21-2026

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Extraction Line

ES#19639 - 11157537701 - Extraction Line - Connectes to the oil separator - Genuine BMW - BMW

Connectes to the oil separator

Brand:
Genuine BMW - Corporate Logo
ES#:
19639
Mfg#:
11157537701
In Stock
ON SALE! SAVE 10%
$58.99

This product was last offered at the strikethrough price on
03-04-2026

$52.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#3672478 - 15668 - Oxygen Sensor - Replace your malfunctioning oxygen sensor - Bosch - BMW

Replace your malfunctioning oxygen sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3672478
Mfg#:
15668
In Stock at Vendor
$87.86

This product was last offered at the strikethrough price on
05-19-2026

$78.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Vent Hose

ES#25824 - 11617559530OE - Oil Separator Vent Hose - Should be replaced with the oil separator - Genuine BMW - BMW

Should be replaced with the oil separator For vehicles with production date from 10/2005

Brand:
Genuine BMW - Corporate Logo
ES#:
25824
Mfg#:
11617559530OE
Ships in 3 Business Days
9% off MSRP

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

$77.99

This product was last offered at the strikethrough price on
07-21-2026

$70.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Vent Hose

ES#4689903 - 11157522931 - Crankcase Vent Hose - Rein OE quality breather hose - Rein - BMW

Rein OE quality breather hose 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4689903
Mfg#:
11157522931
Ships in 1 Business Day
$44.99 USD
Free Shipping
on orders $49 and up

Crankcase Return Pipe

ES#3673424 - 11157567801 - Crankcase Return Pipe - Located under intake manifold - Bremmen Parts - BMW

Located under intake manifold 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3673424
Mfg#:
11157567801
In Stock
ON SALE! SAVE 16%
$29.99

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

$25.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

ES#4343214 - 11787526262 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - Febi - BMW

Fuel control and emissions control sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4343214
Mfg#:
11787526262
Back Ordered
$124.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Hose - Pump to Valve

ES#26766 - 11727508048 - Secondary Air Injection Hose - Pump to Valve - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
26766
Mfg#:
11727508048
Ships in 2 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.

$61.99

This product was last offered at the strikethrough price on
07-21-2026

$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Valve

ES#4069281 - 11617531423 - Oil Separator Valve - A common part to fail in cold weather - Rein - BMW

A common part to fail in cold weather 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069281
Mfg#:
11617531423
Ships in 3 Business Days
$120.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Return Tube - Oil Pan to Crankcase Vent Hose

ES#24238 - 11437527133 - Engine Oil Return Tube - Oil Pan to Crankcase Vent Hose - Genuine BMW - BMW

For vehicles with production date up to 09/06 | Also use: (Qty.) (1) 11 42 7 548 322 o-ring.

Brand:
Genuine BMW - Corporate Logo
ES#:
24238
Mfg#:
11437527133
In Stock
5% off MSRP

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

$20.99

This product was last offered at the strikethrough price on
07-21-2026

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

Oil Separator Valve

ES#2771255 - 11617531423 - Oil Separator Valve - A common part to fail in cold weather - Vaico - BMW

A common part to fail in cold weather We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2771255
Mfg#:
11617531423
In Stock at Vendor
$120.99

This product was last offered at the strikethrough price on
05-07-2026

$117.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Vent Hose

ES#3173527 - 11157522931 - Crankcase Vent Hose - From oil separator to valve cover - Vaico - BMW

From oil separator to valve cover We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3173527
Mfg#:
11157522931
In Stock
ON SALE!
$61.99

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

$58.89 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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