Heavy Duty Silicone Coolant Cap Kit With Clamp For Vacuum Heater Port 25mm ID 33mm OD 42mm Long 30mm Depth 3 Ply High Temp Silicone Up To 350F Tough Pressure Connection Cap Built For Rugged Jobs Easy Install

Single-cap silicone coolant cap with clamp for 25mm ports
✔️ 25mm ID, 33mm OD, 42mm long, 30mm depth, 3-Ply silicone

This heavy duty silicone coolant cap kit is designed to seal unused coolant, water, vacuum, and heater core ports in automotive cooling systems, turbochargers, and related components. It handles hot environments up to 350°F (177°C) and includes stainless steel clamps for a secure fit. Dimensions: 25mm (1.0") ID, 33mm (1-19/64") OD, 42mm (1-5/8") long, 30mm (1-3/16") depth.

✅ 3-Ply reinforced silicone rated to 350°F (177°C) for high-temp service
✅ Includes 304 stainless steel clamps for rust-free secure fit
✅ Universal silicone cap for coolant, water, air, vacuum ports and heater cores
✅ Not compatible with fuel, oil, or petroleum-based products

💡 What is a silicone coolant cap kit used for in automotive cooling systems?

It's a handy solution for sealing off hot ports in cooling and vacuum systems.

- Seals coolant, water, air, vacuum ports and heater cores for leak-free operation
- 3-Ply reinforced silicone rated to 350°F (177°C) for rugged seal
- Includes rust-resistant 304 stainless steel clamps for secure connection
- Not compatible with fuel, oil, or petroleum-based products
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