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Audi C5 S6 Quattro 4.2

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Audi C5 S6 Quattro 4.2 Engine Emission Parts

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Suction Pump

ES#3190137 - 911-400 - Suction Pump - Restore engine performance - Dorman - Audi Volkswagen

Restore engine performance

Brand:
Dorman - Corporate Logo
ES#:
3190137
Mfg#:
911-400
Ships in 4 Business Days
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Combi Valve / EGR Valve - Left

Keep your emissions in check We Price Match - Give Us A Call or Chat!
Left side

Brand:
Hamburg Tech - Corporate Logo
ES#:
3537205
Mfg#:
078131101AG
Ships in 1 Business Day
ON SALE! SAVE 10%
$149.99

This product was last offered at the strikethrough price on
09-03-2026

$134.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

Keep your engine running efficiently

Brand:
Walker - Corporate Logo
ES#:
3551566
Mfg#:
1K0998262AB
Ships in 1-2 days
$142.99

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

$138.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PCV hose

ES#282229 - 077103221N - PCV hose - Connects the PCV valve to the valley pan cover - Genuine Volkswagen Audi - Audi

Connects the PCV valve to the valley pan cover

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
282229
Mfg#:
077103221N
Ships in 4 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.

$193.99

This product was last offered at the strikethrough price on
08-31-2026

$179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Combi Valve / EGR Valve - Priced Each

ES#2955510 - 078131102T - Combi Valve / EGR Valve - Priced Each - Keep your emissions in check - Genuine Volkswagen Audi - Audi Volkswagen

Keep your emissions in check Right side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2955510
Mfg#:
078131102T
Ships in 4 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.

$474.99

This product was last offered at the strikethrough price on
08-31-2026

$440.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Combi Valve / EGR Valve - Left

ES#2955509 - 078131101AG - Combi Valve / EGR Valve - Left - Keep your emissions in check - Genuine Volkswagen Audi - Audi Volkswagen

Keep your emissions in check Left side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2955509
Mfg#:
078131101AG
Ships in 6 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.

$474.99

This product was last offered at the strikethrough price on
08-31-2026

$440.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Emissions Service Kit

Complete PCV Kit for your engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2763187
Mfg#:
077103245BKT2
Ships in 8 Business Days
$815.99

This product was last offered at the strikethrough price on
08-31-2026

$809.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

1/8" Barbed Vacuum Fittings - Set Of 10

Perfect for repairing and replacing cracked vacuum lines - Best used with 3mm to 4mm vacuum hoses 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5445719
Mfg#:
125DBCON
Special Order: No Guaranteed ETA
ON SALE! SAVE 59%
$12.99

This product was last offered at the strikethrough price on
03-22-2026

$5.39 USD
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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