Collection: Silicone Vacuum Hose & Vacuum Port Caps

Browse Proflow silicone vacuum hose alongside vacuum port caps and block-offs from Proflow and Champion. Compare individual listings for hose internal diameter, supplied length, cap size, material and part number to suit your engine-bay layout.

Choose the hose for the application

Match the hose dimensions to the connection and check the manufacturer's specifications for the intended vacuum or pressure conditions, operating temperature and exposure to fluids or vapours. Plan the route with enough length and clearance to avoid tight bends, hot surfaces and moving parts.

Do not assume that every silicone vacuum hose is suitable for fuel, oil, coolant, PCV or brake-booster service. Confirm suitability for the exact part and system with the manufacturer before ordering. Follow the manufacturer's connection and retention instructions.

Vacuum port caps and block-offs

Compare caps against the unused port's dimensions and operating conditions. Check each listing for material, size and the quantity supplied; the caps in this collection are not all made from silicone.