Watershields for K&N air filters ID 40/46/50. Porsche 911 / 914/6  ❭  TK394

Covers for Weber triple carburetors (IDA / IDS / IDTP) with an open K&N air filter.
Manufactured from fabric impregnated with a special honey-colored resin.

Weber / PMO 40 (40 IDA 3C / 40 IDS / 40 IDTP)
Applications: Standard for almost all street-legal vehicles (e.g., 911T or 914/6).

Weber / PMO 46 (46 IDA 3C)
Applications: Originally a motorsports-only size for historic race cars such as the Porsche 906, 911 R, or 911 ST.

PMO (IDA 50 / IDF 50)
Applications: Pure racing engines (e.g., 3.0L, 3.2L, 3.4L, or 3.6L RSR-style conversions).