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BMW E34 525i M50 2.5L

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BMW E34 525i M50 2.5L Engine Emission Parts

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Hex Nut - Priced Each

ES#241175 - 07119905515 - Hex Nut - Priced Each - Used in various locations - Genuine BMW - BMW MINI

Used in various locations affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
241175
Mfg#:
07119905515
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3 Pin Connector

ES#4772594 - 12521706096 - 3 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the idle air control valve (IACV). - ECS - BMW

Includes connector housing with terminals and seals. Commonly used for the idle air control valve (IACV). affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772594
Mfg#:
12521706096
In Stock
ON SALE! SAVE 11%
$10.99

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

$9.78 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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
05-02-2026

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

Oxygen Sensor

ES#514309 - 11781468620 - Oxygen Sensor - Keep your engine running smooth and properly - Bosch - BMW

Keep your engine running smooth and properly 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#:
514309
Mfg#:
11781468620
In Stock at Vendor
$138.52

This product was last offered at the strikethrough price on
02-14-2026

$126.56 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bosch Oxygen Sensor - 1450mm

ES#4316397 - 11781735680 - Bosch Oxygen Sensor - 1450mm - Fuel control and emissions control sensor - Bosch - BMW

Fuel control and emissions control sensor 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#:
4316397
Mfg#:
11781735680
In Stock at Vendor
$138.99

This product was last offered at the strikethrough price on
02-14-2026

$106.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel expansion tank

ES#36948 - 16131179025 - Fuel expansion tank - Fuel fume expansion tank - Genuine BMW - BMW

Fuel fume expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
36948
Mfg#:
16131179025
Ships in 8 Business 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.

$109.99

This product was last offered at the strikethrough price on
06-08-2026

$105.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap Hanger

ES#88288 - 51171923919 - Gas Cap Hanger - Located inside the fuel door - Genuine BMW - BMW

Located inside the fuel door affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
88288
Mfg#:
51171923919
Ships in 3 Business Days
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Emission Tube

ES#23758 - 11421265376 - Emission Tube - For the crankcase ventilation system. - Genuine BMW - BMW

For the crankcase ventilation system. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
23758
Mfg#:
11421265376
Ships in 1-2 days
1% off MSRP

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

$92.99

This product was last offered at the strikethrough price on
06-08-2026

$91.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Oxygen Sensor Bung - Priced Each

ES#5051 - ATP-FLS-022 - Universal Oxygen Sensor Bung - Priced Each - Stainless steel weld-in nut for any O2 sensor - ATP - Audi BMW Volkswagen

Stainless steel weld-in nut for any O2 sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ATP - Corporate Logo
ES#:
5051
Mfg#:
ATP-FLS-022
Ships in 6 Business Days
$12.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tubing Support

ES#36921 - 16131177494 - Tubing Support - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
36921
Mfg#:
16131177494
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E34 Vent Pipe

ES#36960 - 16131179606 - E34 Vent Pipe - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
L=4497Mm

Brand:
Genuine BMW - Corporate Logo
ES#:
36960
Mfg#:
16131179606
Ships in 5 Business 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.

$75.99

This product was last offered at the strikethrough price on
06-08-2026

$72.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Cap - Pack Of 10

ES#2598492 - 11611437560KT - Vacuum Cap - Pack Of 10 - Used in various locations under the hood - Genuine BMW - BMW

Used in various locations under the hood affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2598492
Mfg#:
11611437560KT
Ships in 3 Business Days
$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Hose

ES#19587 - 11151726828 - Crankcase Ventilation Hose - Prone to cracking and breaking. - Genuine BMW - BMW

Prone to cracking and breaking. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
19587
Mfg#:
11151726828
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Emissions Label

ES#184846 - 71212122365 - Emissions Label - Located under the hood - Genuine BMW - BMW

Located under the hood affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 1995 model vehicles only

Brand:
Genuine BMW - Corporate Logo
ES#:
184846
Mfg#:
71212122365
Ships in 1-2 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.

$21.99

This product was last offered at the strikethrough price on
06-08-2026

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Cap Seal

ES#2739135 - 16111179680 - Fuel Cap Seal - Original Equipment Supplier - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
2739135
Mfg#:
16111179680
Ships in 6 Business Days
$20.99

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

$19.99 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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