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Your Vehicle 1999 Porsche Boxster 986 Base Convertible H6 2.5L

1999 Porsche Boxster 986 Base Convertible H6 2.5L Engine Emission Parts

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ES#1476641 - 99311325003 - Air Check Valve - Valve for secondary air injection - Genuine Porsche - Porsche

Valve for secondary air injection affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Porsche - Corporate Logo
ES#:
1476641
Mfg#:
99311325003
In Stock at Vendor
$225.99

This product was last offered at the strikethrough price on
02-14-2026

$173.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Connects the crankcase breather valve to the air-oil separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4699215
Mfg#:
99610714755
Ships in 1 Business Day
$101.99 USD
Free Shipping
on orders $49 and up
ES#3181574 - 99610702304H - Oil Separator - Oil vapor separator - Hudson - Porsche

Oil vapor separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3181574
Mfg#:
99610702304H
Ships in 1 day
$97.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2602695 - 98660612601 - Oxygen Sensor - Priced Each - Fitment both before and after the catalyst - 4 required - Bosch - Porsche

Fitment both before and after the catalyst - 4 required affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2602695
Mfg#:
98660612601
In Stock at Vendor
$120.34

This product was last offered at the strikethrough price on
02-21-2026

$95.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2816623 - 99610702304 - Air-Oil Separator - Keep your crankcase pressures and emissions down with a new separator - Hamburg Tech - Porsche

Keep your crankcase pressures and emissions down with a new separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816623
Mfg#:
99610702304
Ships in 1 Business Day
$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4759306 - 99660521301 - Vapor Canister Purge Valve - Carbon canister one-way valve - URO - Porsche

Carbon canister one-way valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4759306
Mfg#:
99660521301
Ships in 1 Business Day
$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4266844 - 0PB129093 - Vacuum Reservoir - Keeps vacuum-operated accessories functioning properly - Genuine Porsche - Porsche

Keeps vacuum-operated accessories functioning properly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Porsche - Corporate Logo
ES#:
4266844
Mfg#:
0PB129093
Ships in 4 Business Days
$76.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Lisle - Corporate Logo
ES#:
2944378
Mfg#:
LIS22850
Ships in 1 Business Day
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2944218 - LIS12390 - Dual Drive Oxygen Sensor Wrench - Tool comes with both 1/2" and 3/8" drive. - Lisle - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tool comes with both 1/2" and 3/8" drive. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Lisle - Corporate Logo
ES#:
2944218
Mfg#:
LIS12390
Ships in 6 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1482673 - 99610124151 - Oil Separator Gasket - Internal oil separator gasket for bank two (cylinders 4-6) - Genuine Porsche - Porsche

Internal oil separator gasket for bank two (cylinders 4-6) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Porsche - Corporate Logo
ES#:
1482673
Mfg#:
99610124151
Ships in 4 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1482674 - 99610124251 - Oil Separator Gasket - Internal oil separator gasket for bank one (cylinders 1-3) - Genuine Porsche - Porsche

Internal oil separator gasket for bank one (cylinders 1-3) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Porsche - Corporate Logo
ES#:
1482674
Mfg#:
99610124251
Ships in 4 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve for Vapor Canister Vent Hose from throttle body for fuel vapor system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat! *Note* This valve comes without the plastic line. It will be necessary to remove and reuse the plastic li

Brand:
Bosch - Corporate Logo
ES#:
3612625
Mfg#:
99611012906
In Stock at Vendor
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2862524 - 96411095002 - Secondary Air Injection Check Valve - Replace your faulty check valve - Genuine Porsche - Porsche

Replace your faulty check valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Replace your faulty check valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
4487871
Mfg#:
96411095002
In Stock at Vendor
$29.99

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

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2681804 - 99620124103 - Fuel Filler Gas Cap - Fuel tank cap with tether - Blau - Porsche

Fuel tank cap with tether affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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