Universal Three-Eighths Inch High Temperature 3-Ply Silicone Hose Cap End Plug For Turbo Bypass Go-To Vacuum Ports Water And Coolant Lines Throttle Body Water Ports And Heater Cores Heavy Duty Automotive Seal

Heavy-Duty 3-Ply Silicone Cap End Plug, 1 Pc Pack
✔️ 3/8 in ID, 1-5/8 in long, 4.5 mm wall, clamp included

This heavy-duty reinforced silicone cap is designed to seal coolant, water, air, and vacuum ports in automotive systems. It’s a go-to solution for turbo bypass ports, throttle body water ports, heater cores, and miscellaneous coolant lines, offering a reliable seal during maintenance and servicing.

✅ Inside Diameter: 3/8 in (9.5 mm)
✅ Wall Thickness: 4.5 mm
✅ Overall Length: ~4.5 cm (1.77 in)
✅ Temperature Range: -65 °F to +350 °F (-54 °C to +177 °C)
✅ Material: High-temperature 3-Ply Polyester Reinforced Silicone
✅ UV and ozone resistant; clamp included

💡 What is a reinforced silicone cap end plug and where is it commonly used in automotive cooling and vacuum systems?

This handy cap helps seal off ports and protects lines during service. - Handy for sealing coolant ports, vacuum lines, turbo bypass ports, throttle body water ports - It withstands up to 350°F and resists UV and ozone exposure - The 3-ply polyester-reinforced silicone gives durability and flexibility - Includes a stainless steel clamp for a secure fit