Vacuum Limiter for Porsche 911 (1978-1983), 928 (1978-1982) Models.

The Vacuum Limiter for Porsche 911 and 928 regulates vacuum pressure to protect your engine’s vacuum system from excessive pressure fluctuations. Designed for a precise fit, it ensures consistent engine performance and helps maintain the reliability of vacuum-operated components. A vital replacement part to keep your Porsche running smoothly and efficiently.