Beefed Up High Temp Silicone Coolant Cap Bypass Heater, 1.5 Inch Length, 6.5mm Port Size, Quarter Inch Inlet, Three Ply Reinforced Construction, 350 Degrees Fahrenheit Max, 4mm Wall Thickness, Ideal for Coolant Water Air and Turbo Bypass

Single-unit reinforced silicone coolant cap for bypasses
✔️ 1.5 in length, ID 1/4 in (6.5 mm), 4 mm wall, 350°F max

This high-temperature reinforced silicone cap is designed to seal coolant and bypass ports in automotive cooling systems. It's ideal for coolant lines, vacuum ports, turbo bypass valves, heater cores, and related connections.

✅ Inside Diameter: 1/4" (6.5 mm)
✅ Overall Length: 1-1/2"
✅ Wall Thickness: 4 mm
✅ Temperature Rating: 350°F (177°C) max
✅ Material: 3-ply polyester reinforced silicone
✅ Compatibility: coolant, water, air, turbo bypass valve ports, vacuum ports, heater cores

💡 What is a high-temperature reinforced silicone cap used for in cooling and bypass systems?

This handy cap is used to seal and route coolant, air, and vacuum lines in engine cooling paths and turbo setups.

• Useful for sealing coolant ports, bypass valves, vacuum ports
• Withstands up to 350°F (177°C) for reliable service
• Three-ply polyester reinforced silicone construction
• Not compatible with fuel or petroleum-based fluids