Porsche 993 Secondary air injection (SAI) port cleaning / valve
911 (993) · 1994–1998 · Engine · #5 most-needed for this chassis
OEM part number
Catalog parts for the 993 that match this topic, each with an OE number printed on a cited source. Pick the one for your model, year and position; confirm by VIN.
- 99311324501 Secondary Air Injection Control Valve
- 99311325003 Secondary Air Injection Pump Check Valve
Why owners need it
Chassis-specific known weak point / high-demand repair item
Typical price seen: $100-$600 (USD, from research 2026-10-12; varies by brand and condition).
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