ECS MK7/8V Silicone Coolant Hose Re-route Kit – ES#3638683

The factory expansion tank coolant hose that runs over top of the intake air scoop can be quite a let down when installing an aftermarket intake system. Leaving an out of place and unsecured hose on top of your brand new cold air intake simply ruins the look underneath the hood!

Introducing our ECS Tuning Silicone Coolant Hose Reroute Kit. Designed and engineered in house to take the less obtrusive hose routing and direct coolant underneath your intake system for more pleasing underhood-aesthetics. This coolant hose connects the upper radiator hose bypass fitting to the expansion tank metal return line.

Made from heavy duty, 3-ply silicone it can handle more than the stock rubber hose! Designed to handle 250° Fahrenheit continuously and tested up to 44.1psi for long lasting, dependable operation. Our hose includes an integral check valve that others may leave out in their design. This check valve replicates the OE check valve in terms of operation so only the necessary amount of coolant is recycled into the coolant expansion tank.

Our reroute kit also includes QTY 2 T304 stainless steel smooth-band hose clamps to replace the OE constant tensions clamps.

INSTALLATION TIPS:

• Some coolant will be lost during the transfer of stock to our ECS hose, but if you work quickly you can minimize fluid loss.
• Start by removing the top hose (engine side) and install our ECS hose.
• Move on to the radiator hose connection (body side) and quickly swap hoses in this order:
  • Have 1 or 2 rags handy to catch and absorb any lost coolant
  • Remove the hose and quickly cover with your thumb
  • Install the ECS hose and clean the engine bay
  • Tighten both hose clamps

**NOTE** Fitment may vary for other brand air intake systems. Please reference our installed photos for a general overview of hose routing.