Coolant Caps

This BOOST products Silicone end caps are reinforced with textile layers to be extreme pressure resistant and also to vacuums in your boost System. These caps are suitable for blanking of your intercooler or radioator pipes/tubes, intake systems, water lines or similar. Also ideal when an engine and/or auxillary parts have been removed and been standing for a long time, corrosion etc. is slowed down by closing open connections on the engine and parts. The silicone blanking caps can withstand up to 5 Bar and temperatures up to 220°C / 428°F. They are not to be used to get in contact with fuel or oil!

In contrast to other suppliers, the BOOST products silicone caps are reinforced thanks to multiple fabric inserts, so they can also be loaded with pressure (air/water).