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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Engine Emission Parts

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Silicone Breather Hose

ES#2966843 - 034-104-2001 - Silicone Breather Hose - Connects the PVC to the metal vent tube - 034Motorsport - Audi

Connects the PVC to the metal vent tube 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2966843
Mfg#:
034-104-2001
Ships in 3 Business Days
$21.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Check Valve

ES#2708852 - 1168000378 - Vacuum Check Valve - Common source of emission related issues - URO - Audi Volkswagen Mercedes Benz

Common source of emission related issues 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2708852
Mfg#:
1168000378
Ships in 2 Business Days
$4.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve Securing Ring

ES#280049 - 06B133459D - Purge Valve Securing Ring - Rubber ring that secures the purge valve in place - Genuine Volkswagen Audi - Audi

Rubber ring that secures the purge valve in place

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280049
Mfg#:
06B133459D
Ships in 1-2 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.

$21.99

This product was last offered at the strikethrough price on
10-08-2026

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

Offset Oxygen Sensor Wrench- Extended

ES#4001169 - CTA2065 - Offset Oxygen Sensor Wrench- Extended - Extra length is needed sometimes - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Extra length is needed sometimes

Brand:
CTA Tools - Corporate Logo
ES#:
4001169
Mfg#:
CTA2065
Back Ordered
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Breather Hose

ES#4151156 - 078103223B - Crankcase Breather Hose - Small "S" breather hose that runs on the backside of the intake manifold - Rein - Audi Volkswagen

Small "S" breather hose that runs on the backside of the intake manifold 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4151156
Mfg#:
078103223B
Ships in 4 Business Days
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#5307949 - 034129101B - Pressure Control Valve (PCV) - Located on the turbo inlet pipe. 19mm - Bremmen Parts - Audi Volkswagen

Located on the turbo inlet pipe. 19mm 10X Entries Into Our F80 M3 Sweepstakes
Engine codes AEB & ATW

Brand:
Bremmen Parts - Corporate Logo
ES#:
5307949
Mfg#:
034129101B
Special Order: No Guaranteed ETA
ON SALE! SAVE 22%
$22.99

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

$17.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Check Valve - Priced Each

ES#2812982 - 058905291K - Check Valve - Priced Each - Used in multiple locations in the vacuum system - Hamburg Tech - Audi Volkswagen

Used in multiple locations in the vacuum system We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812982
Mfg#:
058905291K
Ships in 2 Business Days
$5.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

T-Piece Fitting

ES#273239 - 034133382AA - T-Piece Fitting - Allows parallel connection of the vacuum reservoir/damper - Genuine Volkswagen Audi - Audi Volkswagen

Allows parallel connection of the vacuum reservoir/damper Engine codes AEB & ATW

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
273239
Mfg#:
034133382AA
Ships in 1-2 days
13% off MSRP

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

$15.99

This product was last offered at the strikethrough price on
10-08-2026

$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BREATHER HOSE

ES#4151132 - 06B103221P - BREATHER HOSE - Rein - Audi Volkswagen

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

Brand:
Rein - Corporate Logo
ES#:
4151132
Mfg#:
06B103221P
Ships in 4 Business Days
$13.99

This product was last offered at the strikethrough price on
04-16-2026

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose

ES#4070822 - 06B133783BC - Breather Hose - Connects the suction jet pump to the intake manifold - Vaico - Audi Volkswagen

Connects the suction jet pump to the intake manifold We Price Match - Give Us A Call or Chat!
Engine codes ATW & AWM

Brand:
Vaico - Corporate Logo
ES#:
4070822
Mfg#:
06B133783BC
Ships in 2 Business Days
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

ES#2814255 - 1H0201553B - Gas Cap - Keep your fuel system sealed - Hamburg Tech - Audi Volkswagen

Keep your fuel system sealed We Price Match - Give Us A Call or Chat!
Up to VIN 8D-W-070001, split is in the 1998 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814255
Mfg#:
1H0201553B
Ships in 2 Business Days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Assembly Gasket

ES#2815771 - 48103771 - Breather Assembly Gasket - Seals the breather assembly to the engine - Hamburg Tech - Audi

Seals the breather assembly to the engine We Price Match - Give Us A Call or Chat!
Engine codes AEB & ATW

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815771
Mfg#:
48103771
Ships in 2 Business Days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp - Priced Each

ES#466943 - N0241222 - Hose Clamp - Priced Each - Install new clamps to stay leak free. 9x13 - Genuine Volkswagen Audi - Audi Volkswagen

Install new clamps to stay leak free. 9x13

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466943
Mfg#:
N0241222
Ships in 1-2 days
$5.99

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

$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#466503 - N01471015 - Hex Bolt - Priced Each - Install new hardware with your new parts. M8x20 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M8x20 Engine codes AEB & ATW. Secures the breather assembly to the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466503
Mfg#:
N01471015
Ships in 1-2 days
38% off MSRP

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

$4.86

This product was last offered at the strikethrough price on
10-08-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose

ES#2812959 - 058103493A - Breather Hose - Connects the PVC to the metal vent tube - Hamburg Tech - Audi Volkswagen

Connects the PVC to the metal vent tube We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812959
Mfg#:
058103493A
Ships in 2 Business Days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose

ES#4138708 - 058103221A - Breather Hose - 'L' shaped hose attached to the bleeder valve under the intake manifold - URO - Audi Volkswagen

'L' shaped hose attached to the bleeder valve under the intake manifold 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Engine code AEB with manual transmissions

Brand:
URO - Corporate Logo
ES#:
4138708
Mfg#:
058103221A
Ships in 2 Business Days
$9.99 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.

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

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