1 Inch Black Universal Reinforced Silicone Coolant Cap With Clamp For Bypass Heater Vacuum Port Protective End Cap Kit Heavy Duty High Temperature 350 Deg F Rating Durable Silicone Construction Universal Fit For Automotive Engine Cooling
✔️ Single cap; 25mm ID, 33mm OD, 42mm overall length, 30mm depth
Designed for automotive cooling systems, this 1 inch reinforced silicone cap seals ports to prevent leaks and manage pressure in coolant lines. It suits coolant, vacuum, bypass ports, heater cores, and turbo bypass pathways, keeping your engine cooling on track.
✅ Temperature rating up to 350°F (177°C)
✅ Inside Diameter: 25mm (1") ID
✅ Outside Diameter: 33mm (1-19/64"), Overall Length: 42mm (1-5/8"), Depth: 30mm (1.18")
✅ Wall Thickness: 4mm (0.16"), Reinforced 3-ply polyester
✅ Clamps: SUS 304 stainless steel, rust-free
✅ Not compatible with fuel, oil, or petroleum-based products
💡 What is a reinforced silicone coolant cap used for in automotive cooling systems? This handy part seals ports and keeps cooling lines leak-free under high temps.
- It helps seal coolant, vacuum, and bypass ports in engine cooling circuits
- Made from high-temperature reinforced silicone with 3-ply polyester construction
- Clamps are SUS 304 stainless steel for durability and rust resistance
- UV and ozone resistant for long service life