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2004 Porsche 911 996 Carrera 4 Convertible H6 3.6L

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2004 Porsche 911 996 Carrera 4 Convertible H6 3.6L Engine Emission Parts

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Engine Crankcase Vent Valve

Air-Oil Separator

Brand:
Genuine Porsche - Corporate Logo
ES#:
4398988
Mfg#:
99610702652
Ships in 5 Business Days
$265.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Pump - Right

Responsible for Pumping clean Air into the vehicle's exhaust stream to promote a cleaner and more complete burn before the fumes exit the tailpipe.

Brand:
Genuine Porsche - Corporate Logo
ES#:
3022195
Mfg#:
99660510401
Ships in 5 Business Days
$2426.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Post-Catalyst Oxygen Sensor - Priced Each

Fitment after the catalyst on either side - Two required

Brand:
FAE - Corporate Logo
ES#:
3625769
Mfg#:
99660617801
Ships on Aug 20, 2026
$111.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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 For Our 25th Anniversary 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

Oxygen Sensor - Priced Each

ES#4933001 - GM1320918 - Oxygen Sensor - Priced Each - Downstream Position - URO - Porsche

Downstream Position 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
4933001
Mfg#:
GM1320918
Back Ordered
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Crankcase Vent Valve

ES#4674525 - 99610702652 - Engine Crankcase Vent Valve - Air-Oil Separator - Vaico - Porsche

Air-Oil Separator We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4674525
Mfg#:
99610702652
Special Order: No Guaranteed ETA
$71.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Post-Catalyst Oxygen Sensor - Priced Each

ES#2902485 - 99660617801 - Post-Catalyst Oxygen Sensor - Priced Each - Fitment after the catalyst on either side - Two required - Vemo - Porsche

Fitment after the catalyst on either side - Two required

Brand:
Vemo - Corporate Logo
ES#:
2902485
Mfg#:
99660617801
Special Order: No Guaranteed ETA
$78.99 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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