Secondary air injection pump. Porsche 997 Turbo / 991 Turbo / 958 Cayenne / 95B Macan / 970 Panamera  ❭  95B959253C

Secondary air injection pump.
OE Match secondary air injection pump that mirrors the original Porsche unit in fit, connector style, and airflow function. It’s used to support the engine’s secondary air system on multiple Porsche platforms including 997 Turbo / 991 Turbo / 958 Cayenne / 95B Macan / 970 Panamera.

Fits:
Porsche 958 Cayenne 3.6L V6 2015 - 2018
Porsche 95B Macan S 3.0L / Macan Turbo 3.6L 2014 - 2018
Porsche 970 Panamera S 3.0L 2014 - 2016
Porsche 997.2 3.8L Turbo / Turbo S 2010 - 2013
Porsche 991.1 3.8L Turbo 2014 - 2016
Porsche 991.2 3.8L Turbo / Turbo S / GT2 RS 2017 - 2018
Porsche 991 GT3 3.8L 2014 - 2017
Porsche 991 4.0L GT3 / GT3 RS / R 2015 - 2018

Diagram ref no 3

This is an electric air pump that forms the heart of the Porsche secondary air injection (SAI) system. In OE Match form, it’s manufactured to replicate the OE housing shape, mounting points, and electrical characteristics so it installs as a direct replacement when the original pump becomes noisy, weak, or fails.

On cold start, the pump pushes fresh air into the exhaust stream (via the SAI system valves and pipework). This helps the catalytic converters warm up faster and reduces cold-start emissions - supporting smooth compliance with the vehicle’s emissions strategy.

A failing secondary air pump can trigger emissions warnings and drivability annoyances (MIL/check engine light) because the ECU may detect insufficient secondary air flow during cold start. Replacing the pump restores proper SAI operation and helps keep emissions functions working as intended.

When to replace:
• Check engine light / emissions-related fault codes linked to secondary air flow
•  Pump runs loudly, squeals, or sounds rough on cold start
•  Pump not running during cold start when commanded
•  Water ingress/corrosion damage or seized pump motor
•  Preventative replacement during secondary air system service

Related reference numbers
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95B959253C

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