Five Eighths Inch Black High Temperature Three Ply Reinforced Silicone Coolant Cap Bypass Heater For Heavy Duty Pressure Connections One And Five Eighths Inch Length 350 Degree Fahrenheit Max Four Millimeter Wall Thickness For Coolant Water Air Turbo

Single 5/8 in Black High-Temp Reinforced Silicone Coolant Cap
✔️ Single 5/8 in black high-temp reinforced silicone cap, 1-5/8 in long

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Designed for automotive cooling systems, this heavy-duty cap seals coolant ports, turbo bypass valves, vacuum ports, throttle body water ports, and heater cores. Its reinforced silicone construction handles heat and pressure in coolant lines, water circuits, and air paths.

✅ Inside Diameter: 5/8" (16 mm)
✅ Overall Length: 1-5/8" (41 mm)
✅ Wall Thickness: 4 mm
✅ Temperature Rating: Up to 350°F (177°C)
✅ Material: 3-ply polyester reinforced silicone
✅ Color: Black

Dimension	Value
Inside Diameter	5/8" (16 mm)
Overall Length	1-5/8" (41 mm)
Wall Thickness	4 mm

💡 What is a high-temperature silicone cap used for in automotive cooling systems? These caps seal ports and help maintain pressure in coolant loops under heat.

- Handy for sealing coolant ports in engines - Resists up to 350°F (177°C) to maintain performance - Reinforced 3-ply silicone design for longevity - UV and ozone resistant for long life