4.00" Black Silicone Hose - 3-Ply Straight
High-temp silicone radiator hose with three reinforced plies for boost systems, coolant lines, and intake charge piping. Black silicone construction handles extreme temperatures and aggressive coolant chemistry. 4-inch diameter fits most universal cooling and forced-induction applications.
Do I need hose clamps to install this?
Yes. This hose requires clamps at both ends to secure it to your fittings or barbed connectors. Standard worm-gear or t-bolt clamps work — size depends on your fitting diameter, not the hose.
Can I use this for coolant and boost lines on the same car?
Absolutely. Three-ply silicone handles both coolant and pressurized intake charge without degradation. Make sure any fittings you use are rated for your intended application temperature.
What if I need a different length or a bend?
This ships as a straight section. You can cut it to length with a sharp knife or hose cutter, but bending requires a mandrel or spring — doing it by hand often kinks the hose and compromises flow. Plan your routing before install.
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