Product Details: The STANDARD IGNITION PVS80 SI Ported Vacuum Switch is a critical component in managing engine vacuum systems ensuring optimal performance and compliance with emission standards Designed for direct fit replacement this switch offers a seamless installation process minimizing downtime and labor costs Constructed with a durable brass and high temperature plastic housing it withstands the demanding conditions of underhood environments providing longevity and reliable operation The PVS80 SI features four 3 16 hose connectors and a 1 2 14 thread size aligning with original equipment specifications for precise fit and function This design ensures accurate control of vacuum signals contributing to improved engine efficiency and reduced emissions By integrating the PVS80 SI into your fleet s maintenance regimen you can enhance vehicle performance ensure regulatory compliance and reduce maintenance costs associated with faulty vacuum switches