Secondary pump. This part number supersedes to 95B959253C Genuine Porsche part 95B959253A

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
Related, superseded, cross reference or alternative numbers for comparison.

95B959253C

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Secondary air injection pump.
Fits:
Porsche 958 Cayenne 3.6L V6 2015 - 2018
Porsche 95B Macan S 3.0L / Macan Turbo 3.6L 2014 - 2018
Porsche 970.1 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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B959253C

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Steering wheel control unit
Compatibility depends on the vehicle’s steering wheel equipment and applicable PR codes.

Fits

• Porsche Boxster 718 (982) 2017>>
• Porsche Cayman 718C (982C) 2017>>
• Porsche Macan (95B) MK1  2014 – 2018
• Porsche Macan (95B) MK2 2019 – 2021
• Porsche Macan (95B) MK3 2022>>
• Porsche Cayenne 92A (958) 2010 – 2017  

Diagram application notes

Steering wheel / Individual parts (PR:858,XLL) 718 (982) Boxster 2017>>
Steering wheel / Individual parts (PR:855,XHV,XHW) 718 (982) Boxster 2017>>
Steering wheel / Individual parts (PR:858,XLL) 718C (982C) Cayman 2017>>
Steering wheel / Individual parts (PR:855,XHV,XHW) 718C (982C) Cayman 2017>>
Steering wheel 95B.1 Macan 2014-18
Steering wheels (PR:2X2, Tiptronic control on steering wheel) Cayenne 92A (958) 2015>>
Steering wheel - PR:1XD, 1XG, 2FX, 2PJ, 2ZF, 2ZH, 2ZM + 2X2 + 8LA, 8LE, 8LF, 8LH - 95B (II / III) Macan 2019 - 2024

What This Product Does

This module provides electronic control within the applicable steering wheel assembly. It is a separate component rather than a complete wheel, multifunction button set, wiring set or trim piece.

Technical Details

• Component type: steering wheel electronic control unit.
• Diagram quantity: one control unit per applicable assembly.
• 718 Boxster and Cayman control-unit row: PR:489,QR0.
• Macan II/III control-unit row: basic; PR:8LA, 8LE, 8LF.
• Steering wheel assembly contexts include PR:858,XLL; PR:855,XHV,XHW; and PR:2X2. These assembly codes do not replace the control-unit row restrictions.

Symptoms of Fault

Unresponsive steering wheel buttons or intermittent electrical operation can prompt investigation. Such symptoms alone do not confirm that this module requires replacement; wiring, connections and other steering wheel components may also need assessment.

Why Replacement Matters

Replacing a diagnosed faulty unit with the correctly specified Porsche component supports the original steering wheel’s electronic operation. Matching the part number and factory equipment is important because similar-looking assemblies can use different supporting components.

FAQs

Is model year enough to confirm compatibility?
No. Check the VIN, steering wheel specification and relevant PR codes against the application and diagram notes.

Does this replace the complete steering wheel?
No. The diagrams identify the control unit separately from the wheel, switches, trim and wiring.

Check fitment for your specific vehicle (model, year, engine) before ordering.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95B959256E

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