Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

Audi B6 A4 Quattro 1.8T

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Audi B6 A4 Quattro 1.8T
Your Vehicle Audi B6 A4 Quattro 1.8T
Change Clear

Audi B6 A4 Quattro 1.8T Engine Emission Parts

Sort By
Filter By
Return to Top

Breather Hose

ES#2801688 - 06B133783BC - Breather Hose - Connects the suction jet pump to the intake manifold - Rein - Audi Volkswagen

Connects the suction jet pump to the intake manifold 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Up to VIN 8E-3-100000, split is in the 2003 model year

Brand:
Rein - Corporate Logo
ES#:
2801688
Mfg#:
06B133783BC
Ships in 1 Business Day
$10.99 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 1 Business Day
$4.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Elbow Hose

ES#3188728 - 46074 - Elbow Hose - Connects the hard vent tube to the intake hose - Dorman - Audi Volkswagen

Connects the hard vent tube to the intake hose Up to VIN 84-4-000001, split is in the 2004 model year

Brand:
Dorman - Corporate Logo
ES#:
3188728
Mfg#:
46074
Ships in 4 Business Days
$19.99 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 day
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

Silicone Breather Hose Elbow

ES#2966841 - 034-101-3046 - Silicone Breather Hose Elbow - Connects the pressure regulator to the hard breather tube - 034Motorsport - Audi

Connects the pressure regulator to the hard breather tube 2X Entries Into Our F80 M3 Sweepstakes
From VIN 8E-4-000001, split is in the 2004 model year

Brand:
034Motorsport - Corporate Logo
ES#:
2966841
Mfg#:
034-101-3046
Ships in 2 Business Days
$19.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp - Priced Each

ES#2803685 - N90739901 - Hose Clamp - Priced Each - Install new clamps to stay leak free. 31x10x0.8mm - Rein - Audi Volkswagen

Install new clamps to stay leak free. 31x10x0.8mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803685
Mfg#:
N90739901
Ships in 3 Business Days
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pinch Clamp - Priced Each

ES#467718 - N10233401 - Pinch Clamp - Priced Each - Install new hardware with your new parts. 16.2x7x0.6 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 16.2x7x0.6

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467718
Mfg#:
N10233401
Ships in 1 day
24% off MSRP

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

$3.94

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

Pressure Control Valve (PCV) - Priced Each

ES#2575453 - 06B103245 - Pressure Control Valve (PCV) - Priced Each - Located under the intake manifold - OE Aftermarket - Audi Volkswagen

Located under the intake manifold From VIN 8E-3-040001 up to VIN 8E-3-500000, splits are in the 2003 model year

Brand:
OE Aftermarket - Corporate Logo
ES#:
2575453
Mfg#:
06B103245
Ships in 3 Business Days
$15.99 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 1 Business Day
$5.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Elbow Connector - Priced Each

ES#279489 - 06A133769 - Elbow Connector - Priced Each - Barbed elbow connects EGR/SAI vent hose to the turbo inlet pipe - Genuine Volkswagen Audi - Audi

Barbed elbow connects EGR/SAI vent hose to the turbo inlet pipe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279489
Mfg#:
06A133769
Ships in 2 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.

$15.00

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 3 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!
Up to VIN 8E-3-100000, split is in the 2003 model year

Brand:
Vaico - Corporate Logo
ES#:
4070822
Mfg#:
06B133783BC
Ships in 1 Business Day
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose Elbow

ES#4045824 - 06B103221M - Breather Hose Elbow - Connects the pressure regulator to the hard breather tube - URO - Audi

Connects the pressure regulator to the hard breather tube 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8E-4-000001, split is in the 2004 model year

Brand:
URO - Corporate Logo
ES#:
4045824
Mfg#:
06B103221M
Ships in 1 Business Day
$13.99

This product was last offered at the strikethrough price on
09-24-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose Elbow

ES#5460611 - 06A103213AM - Breather Hose Elbow - Connects the oil filter adapter to the hard breather tube - Bremmen Parts - Audi Volkswagen

Connects the oil filter adapter to the hard breather tube 10X Entries Into Our F80 M3 Sweepstakes
From VIN 8E-4-000001, split is in the 2004 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
5460611
Mfg#:
06A103213AM
In Stock
ON SALE! SAVE 15%
$12.99

This product was last offered at the strikethrough price on
09-16-2026

$11.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Hose Connecting Piece

ES#283774 - 078133382J - Vacuum Hose Connecting Piece - Connects 2 sizes of vacuum hose - Genuine Volkswagen Audi - Audi

Connects 2 sizes of vacuum hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283774
Mfg#:
078133382J
Ships in 1 day
$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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings