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95560510
Product Information
Product Information
Secondary air injection pump
This OE Match secondary air injection pump is a replacement electric air pump used in the vehicle emissions control system. It is designed to match the original-style fitment and function, helping restore correct secondary air system operation on Porsche 955 Cayenne S and Turbo models.

Fits:
Porsche 955 Cayenne S 4.5L 2003 - 2006
Porsche 955 Cayenne Turbo 4.5L 2003 - 2006

Diagram ref no 1 (Cylinders 1-4) or 2 (Cylinders 5-8).

The secondary air injection pump delivers fresh air into the exhaust system during cold starts. This helps the catalytic converters reach operating temperature more quickly and supports reduced cold-start emissions. Correct pump operation is also important for preventing secondary air system fault codes.

Functions
•  Replaces the secondary air injection pump
•  Supplies fresh air to the exhaust system during cold start
•  Supports faster catalytic converter warm-up
•  Helps reduce cold-start emissions
•  Assists correct emissions control system operation
•  Helps prevent secondary air injection fault codes
•  OE Match replacement for Porsche 955 Cayenne emissions system repair.

Why Replace This Part?
Secondary air injection pumps can fail due to age, moisture ingress, carbon contamination, electrical faults, worn motor components, blocked air lines, or repeated cold-start operation. A failed pump may cause engine warning lights, emissions fault codes, rough cold-start behaviour, or failed emissions testing. Replacing the pump helps restore correct secondary air system performance.

When to Replace This Part
•   Engine warning light is illuminated
•   Secondary air injection fault codes are present
•   Pump is noisy, weak, seized, or inoperative
•   Cold-start emissions system faults are being diagnosed
•   Vehicle has failed emissions testing
•   Air injection lines or valves are being serviced
•   Preventative replacement is required during emissions system repair

Where it fits on the car
This pump fits within the secondary air injection / emissions control system on Porsche 955 Cayenne S and Cayenne Turbo models. Exact position can vary depending on engine layout and model specification.

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Related, superseded, cross reference or alternative numbers for comparison.

95560510
95560510421
95560510420
95560510510
95560510511

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