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

2003 Porsche 911 996 Carrera 4S Coupe H6 3.6L

    • 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 2003 Porsche 911 996 Carrera 4S Coupe H6 3.6L
Your Vehicle 2003 Porsche 911 996 Carrera 4S Coupe H6 3.6L
Change Clear

2003 Porsche 911 996 Carrera 4S Coupe H6 3.6L Engine Emission Parts

Sort By
Filter By
Return to Top

Fuel Filler Gas Cap

ES#2748874 - 99620124103 - Fuel Filler Gas Cap - Fuel tank cap with tether - Rein - Porsche

Fuel tank cap with tether 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2748874
Mfg#:
99620124103
Ships in 1 Business Day
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air-Oil Separator Hose

ES#1483160 - 99610620850 - Air-Oil Separator Hose - Upper coolant hose for the air-oil separator - Genuine Porsche - Porsche

Upper coolant hose for the air-oil separator

Brand:
Genuine Porsche - Corporate Logo
ES#:
1483160
Mfg#:
99610620850
In Stock
Limited Qty Sale
$23.99

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

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Check Valve

ES#2862524 - 96411095002 - Secondary Air Injection Check Valve - Replace your faulty check valve - Genuine Porsche - Porsche

Replace your faulty check valve

Brand:
Genuine Porsche - Corporate Logo
ES#:
2862524
Mfg#:
96411095002
Ships in 4 Business Days
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Pinchers

ES#2944378 - LIS22850 - Hose Pinchers - A must for any car enthusiast. - Lisle - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A must for any car enthusiast.

Brand:
Lisle - Corporate Logo
ES#:
2944378
Mfg#:
LIS22850
Ships in 6 Business Days
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Catch Can Drain Kit

ES#3543138 - 20-0024 - Universal Catch Can Drain Kit - Intuitive drain solution for most catch can applications - Radium Engineering - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Intuitive drain solution for most catch can applications

Brand:
Radium Engineering - Corporate Logo
ES#:
3543138
Mfg#:
20-0024
In Stock at Vendor
$28.99 USD
Free Shipping
on orders $49 and up

Fuel Filler Gas Cap

ES#2681804 - 99620124103 - Fuel Filler Gas Cap - Fuel tank cap with tether - Blau - Porsche

Fuel tank cap with tether

Brand:
Blau - Corporate Logo
ES#:
2681804
Mfg#:
99620124103
Ships in 1 Business Day
$25.68

This product was last offered at the strikethrough price on
07-08-2026

$25.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air-Oil Separator Hose

ES#2535012 - 99610717550 - Air-Oil Separator Hose - Connects the air-oil separator to the crankcase - URO - Porsche

Connects the air-oil separator to the crankcase 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535012
Mfg#:
99610717550
Ships in 1 Business Day
$20.99 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

Oil Separator Boot

ES#2534936 - 99610723752 - Oil Separator Boot - Rubber boot for oil separator - URO - Porsche

Rubber boot for oil separator 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534936
Mfg#:
99610723752
Ships in 1 Business Day
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filler Gas Cap

ES#4840257 - 99620124103 - Fuel Filler Gas Cap - Fuel tank cap with tether - Hamburg Tech - Porsche

Fuel tank cap with tether We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4840257
Mfg#:
99620124103
Ships in 1 Business Day
$11.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Power Change-Over Valve - Priced Each

ES#5375190 - 99660512301 - Vacuum Power Change-Over Valve - Priced Each - Secondary Air Injection Pump Solenoid Valve - Two (2) Required Per Vehicle - Hamburg Tech - Porsche

Secondary Air Injection Pump Solenoid Valve - Two (2) Required Per Vehicle

Brand:
Hamburg Tech - Corporate Logo
ES#:
5375190
Mfg#:
99660512301
Ships in 1 Business Day
$18.99 USD
Free Shipping
on orders $49 and up
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
Ships in 1 Business Day
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Check Valve

ES#4931491 - 99311325003 - Air Check Valve - Valve for secondary air injection - URO - Porsche

Valve for secondary air injection 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
4931491
Mfg#:
99311325003
Ships in 1 Business Day
$69.99 USD
Free Shipping
on orders $49 and up

Secondary Air Injection Pump

ES#4818747 - 99660510404 - Secondary Air Injection Pump - It is also recommended to replace the air injection pump relay - 99361511501. - Vemo - Porsche

It is also recommended to replace the air injection pump relay - 99361511501.

Brand:
Vemo - Corporate Logo
ES#:
4818747
Mfg#:
99660510404
Ships in 2 Business Days
$1094.99

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

$1026.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vapor Canister Purge Valve

ES#1494066 - 99660521301 - Vapor Canister Purge Valve - Carbon canister one-way valve - Genuine Porsche - Porsche

Carbon canister one-way valve

Brand:
Genuine Porsche - Corporate Logo
ES#:
1494066
Mfg#:
99660521301
Ships in 4 Business Days
$484.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Regeneration Valve

ES#2224255 - 99611012953 - Regeneration Valve - From the throttle body for fuel vapor system. This brand comes complete with the plastic line. - Genuine Porsche - Porsche

From the throttle body for fuel vapor system. This brand comes complete with the plastic line.

Brand:
Genuine Porsche - Corporate Logo
ES#:
2224255
Mfg#:
99611012953
Ships in 4 Business Days
$568.99 USD
Free Shipping
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 ECS Tuning is part of Enthusiast Auto Holdings