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Audi A4 Engine Emission Parts

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ES#470651 - N90739901 - Hose Clamp - Priced Each - Install new clamps to stay leak free. 31x10x0.8mm - Genuine Volkswagen Audi - Audi Volkswagen

Install new clamps to stay leak free. 31x10x0.8mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470651
Mfg#:
N90739901
Ships in 1-2 days
$2.99

This product was last offered at the strikethrough price on
02-04-2026

$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3438754 - 06F103221H - PCV Breather Hose - Connects the PCV valve to intake manifold - Rein - Audi Volkswagen

Connects the PCV valve to intake manifold 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#:
3438754
Mfg#:
06F103221H
In Stock at Vendor
$25.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4818420 - 058133785B - Air Pump Hose - Connects the metal pipes in the air pump system - Bremmen Parts - Audi Volkswagen

Connects the metal pipes in the air pump system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818420
Mfg#:
058133785B
In Stock
ON SALE! SAVE 22%
$21.99

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

$17.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#279962 - 06B103493M - Elbow Hose - Connects the hard vent tube to the intake hose - Genuine Volkswagen Audi - Audi Volkswagen

Connects the hard vent tube to the intake hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to VIN 84-4-000001, split is in the 2004 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279962
Mfg#:
06B103493M
Ships in 5 Business Days
11% off MSRP

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

$56.99

This product was last offered at the strikethrough price on
06-07-2026

$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3462915 - 058133817H - Secondary Air Injection Hose - Inlet - Connects the secondary air pump to the air box - Kayser - Audi Volkswagen

Connects the secondary air pump to the air box affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine codes ATW & AWM

Brand:
Kayser - Corporate Logo
ES#:
3462915
Mfg#:
058133817H
Ships in 6 Business Days
$51.99

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

$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2718624 - 06F103221H - PCV Breather Hose (06F103221H) - Connects the PCV valve to intake manifold - Hamburg Tech - Audi Volkswagen

Connects the PCV valve to intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2718624
Mfg#:
06F103221H
In Stock at Vendor
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#469749 - N90409501 - Hose Clamp - Priced Each - Install new clamps to stay leak free. 28.6x7x.6mm - Genuine Volkswagen Audi - Audi Volkswagen

Install new clamps to stay leak free. 28.6x7x.6mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469749
Mfg#:
N90409501
In Stock
$0.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#277667 - 058133785B - Air Pump Hose - Connects the metal pipes in the air pump system - Genuine Volkswagen Audi - Audi Volkswagen

Connects the metal pipes in the air pump system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277667
Mfg#:
058133785B
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.

$53.99

This product was last offered at the strikethrough price on
06-07-2026

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#277663 - 058133784AG - breather hose - Connects the turbo inlet hose to the vacuum tube - Genuine Volkswagen Audi - Audi

Connects the turbo inlet hose to the vacuum tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8E-3-100001, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277663
Mfg#:
058133784AG
Ships in 5 Business Days
11% off MSRP

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

$55.99

This product was last offered at the strikethrough price on
06-07-2026

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1306660 - 078103223B - Crankcase Breather Hose - Small "S" breather hose that runs on the backside of the intake manifold - Vaico - Audi Volkswagen

Small "S" breather hose that runs on the backside of the intake manifold 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#:
1306660
Mfg#:
078103223B
In Stock at Vendor
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#280204 - 06C103771 - Valley Pan Gasket (Vent Trim) - Located underneath the PVC vent box - Genuine Volkswagen Audi - Audi

Located underneath the PVC vent box affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280204
Mfg#:
06C103771
Ships in 4 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.

$54.00

This product was last offered at the strikethrough price on
06-07-2026

$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5341359 - 8K0201550P - Gas Cap - Includes seal ring and retaining strap - URO - Audi

Includes seal ring and retaining strap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
URO - Corporate Logo
ES#:
5341359
Mfg#:
8K0201550P
Ships in 2 Business Days
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#279963 - 06B103493R - Vent Hose - Priced Each - Used as a connection point in the PCV and vaccuum systems - Genuine Volkswagen Audi - Audi

Used as a connection point in the PCV and vaccuum systems affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Connects the bleeder valve to the vent hose up to VIN 8E-3-500000, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279963
Mfg#:
06B103493R
Ships in 3 Business Days
11% off MSRP

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

$53.99

This product was last offered at the strikethrough price on
06-07-2026

$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#279960 - 06B103493C - Vent Hose - Priced Each - Connects the check valve from the suction pump to the vent pipe - Genuine Volkswagen Audi - Audi

Connects the check valve from the suction pump to the vent pipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279960
Mfg#:
06B103493C
Ships in 5 Business Days
11% off MSRP

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

$53.99

This product was last offered at the strikethrough price on
06-07-2026

$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#279961 - 06B103493D - Breather Hose  - Connects the check valve to the suction pump - Genuine Volkswagen Audi - Audi

Connects the check valve to the suction pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8E-3-100001, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279961
Mfg#:
06B103493D
Ships in 5 Business Days
11% off MSRP

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

$53.99

This product was last offered at the strikethrough price on
06-07-2026

$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3426797 - 06B133783AT - Breather Hose - Connects the suction jet pump to the intake manifold - Kayser - Audi Volkswagen

Connects the suction jet pump to the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8E-4-000001, split is in the 2004 model year

Brand:
Kayser - Corporate Logo
ES#:
3426797
Mfg#:
06B133783AT
Ships in 1-2 days
$24.99

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

$23.99 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.

Let us help you find the parts that fit your Audi

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

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