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Audi B6 A4 FWD 1.8T

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Audi B6 A4 FWD 1.8T Engine Emission Parts

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Secondary Air Injection Pump

ES#1876813 - 06A959253B - Secondary Air Injection Pump - Keep your engine running efficiently - MTC - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MTC - Corporate Logo
ES#:
1876813
Mfg#:
06A959253B
Ships in 10 Business Days
$366.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B6 A4 1.8T Performance Baffled Oil Catch Can System - 6 oz.

ES#4906656 - 053538la03KT - B6 A4 1.8T Performance Baffled Oil Catch Can System - 6 oz. - Keep your intake tract clean and oil free! Featuring a four-chamber baffled catch can, durable silicone hoses, and a plug & play bracket for seamless integration. - ECS - Audi

Keep your intake tract clean and oil free! Featuring a four-chamber baffled catch can, durable silicone hoses, and a plug & play bracket for seamless integration. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8E-3-500001, split is in the 2003 model year.

Brand:
ECS - Corporate Logo
ES#:
4906656
Mfg#:
053538LA03KT
In Stock
ON SALE! SAVE 45%
$662.99

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

$364.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#4818590 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen Porsche

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818590
Mfg#:
1C0906517A
In Stock
ON SALE! SAVE 21%
$37.99

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

$30.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

25mm Pressure Regulating Valve (PRV)

ES#4858146 - 034-101-Z006 - 25mm Pressure Regulating Valve (PRV) - Located on the intake hose leading to the turbo inlet - 034Motorsport - Audi Volkswagen

Located on the intake hose leading to the turbo inlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4858146
Mfg#:
034-101-Z006
Ships in 3 Business Days
$119.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Socket - 22mm

ES#4490396 - 4680-1 - Oxygen Sensor Socket - 22mm - Properly remove stubborn o2 sensors. - Hazet - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Properly remove stubborn o2 sensors. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hazet - Corporate Logo
ES#:
4490396
Mfg#:
4680-1
Ships in 2 Business Days
$118.99

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

$115.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Suction Pump

ES#4858142 - 034-101-2008 - Vacuum Suction Pump - Show your car some love and replace the suction pump back to it's factory functionality. - 034Motorsport - Audi Volkswagen

Show your car some love and replace the suction pump back to it's factory functionality. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4858142
Mfg#:
034-101-2008
Ships in 3 Business Days
$57.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#1853396 - 1K0998262 - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1853396
Mfg#:
1K0998262
Ships in 3 Business Days
7% off MSRP

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

$374.99

This product was last offered at the strikethrough price on
02-26-2026

$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Shouldered Nut - Priced Each

ES#4883340 - N01508210 - Shouldered Nut - Priced Each - Install new hardware with your new parts. M6 - Rein - Audi Volkswagen

Install new hardware with your new parts. M6 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#:
4883340
Mfg#:
N01508210
In Stock
$2.19

This product was last offered at the strikethrough price on
04-27-2026

$2.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve Repair Kit

ES#3426986 - 1C0906517AKT - Purge Valve Repair Kit - Common cure for DTC P0441 - Includes clamps to replace factory one-time-use clamps - Assembled By ECS - Audi Volkswagen

Common cure for DTC P0441 - Includes clamps to replace factory one-time-use clamps affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3426986
Mfg#:
1C0906517AKT
In Stock
ON SALE! SAVE 23%
$47.99

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

$36.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Retaining C-Clip - Priced Each

ES#4615935 - 06B121142A - Retaining C-Clip - Priced Each - Holds crank case breather tube in place, top of oil filter housing - URO - Audi Volkswagen

Holds crank case breather tube in place, top of oil filter housing 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#:
4615935
Mfg#:
06B121142A
Ships in 2 Business Days
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3/4 NPTBlock Breather Adapter

ES#4146792 - 034-101-5001 - 3/4 NPTBlock Breather Adapter - Precision CNC machined in-house to ensure unsurpassed quality and perfect fitment. Now available with a 3/4" NPT provision. - 034Motorsport - Audi Volkswagen

Precision CNC machined in-house to ensure unsurpassed quality and perfect fitment. Now available with a 3/4" NPT provision. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4146792
Mfg#:
034-101-5001
Ships in 3 Business Days
$25.00 USD
Free Shipping

Breather Hose

ES#277547 - 058103221E - Breather Hose - 'S' shaped hose attached to the bleeder valve under the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

'S' shaped hose attached to the bleeder valve under the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to VIN 8E-3-040000, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277547
Mfg#:
058103221E
Ships in 1-2 days
8% off MSRP

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

$71.99

This product was last offered at the strikethrough price on
02-26-2026

$65.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thin Wall Oxygen Sensor Socket

ES#4001177 - CTA2064 - Thin Wall Oxygen Sensor Socket - Out of space? Use this thin wall socket. - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Out of space? Use this thin wall socket. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4001177
Mfg#:
CTA2064
Back Ordered
$17.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Breather Hose Connector

ES#2966837 - 034-101-3014 - Silicone Breather Hose Connector - Connects the valve cover to the vent tubes - 034Motorsport - Audi Volkswagen

Connects the valve cover to the vent tubes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits up to VIN 8E-3-040 000 - Split is in the 2003 model year

Brand:
034Motorsport - Corporate Logo
ES#:
2966837
Mfg#:
034-101-3014
In Stock
$45.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Crankcase Breather Hose Kit

ES#2966347 - 06A198298kt - Performance Crankcase Breather Hose Kit - Includes the "L" & "T" shaped breather hoses, 034 Billet check valve, and tube with hardware - Assembled By ECS - Audi

Includes the "L" & "T" shaped breather hoses, 034 Billet check valve, and tube with hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966347
Mfg#:
06A198298KT
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 10%
$112.99

This product was last offered at the strikethrough price on
02-06-2026

$101.76 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Breather Tube - Priced Each

ES#2857529 - 06C103217H - Breather Tube - Priced Each - PCV hose set assembly, includes PCV valve - Vaico - Audi

PCV hose set assembly, includes PCV valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2857529
Mfg#:
06C103217H
In Stock at Vendor
$300.02 USD
Free Shipping
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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