Hoses

Silicone Hoses designed for a clean seamless purpose built appearance, and to simplify your plumbing with a heat exchanger.

→Silicone hoses are much more flexible than rubber hoses and can easily fit onto a much larger hose fitting!!   A 5/8″ (16mm) hose can easily fit onto a 18mm hose fitting.

→ Hoses can touch engine & cylinder head! But cannot touch any exhaust components!

Available hoses:

• 5/8″ ID 90° elbow
• 5/8″ ID 45° elbow
• Return hose
  • Return hose is made to be more universal fit than bike specific so it may not be a direct fit on your bike depending on the location of your coolant return pump and header pipe layout. You may need to modify the hose for your specific setup. Has 5/8″ ID end for coolant return from heat exchanger, 1/4″ ID for bypass return from coolant bottle, 3/4″ ID for connection to water pump. (see plumbing setup pictures
• Heat exchanger /  tunnel hose (sold as individual hose)
  • 36″ long x 5/8″ ID with 90° elbow for connecting to heat exchanger and long enough to reach the backside of engine where the connections to engine in/out are hidden from view for a clean seamless appearance. 
  • You will need 2 hoses, one for hot supply, one for cold return
  • A 3rd hose can be used from the the thermostat output → rear of engine to connect with heat exchanger hose. Silicone is very elastic, the 5/8″ hose can be stretched to fit over the 3/4″ thermostat fitting but it will take some muscle.
• Thermobob output reducer hose elbow
  • 90° elbow with 3/4″ on one end to thermobob – 5/8″  on other end to hose running back to heat exchanger. All dirtbike sized Thermobobs will have a 3/4″ output and are setup to have the output upwards toward radiators. You need to redirect that output backwards towards heat exchanger and reduced it to 5/8″ and this hose will simplify that for you.
    
• Bypass Return Reducer
  • Used only on bikes that have dual cold return inlets!
  • Thermostat bypass goes either directly into coolant bottle, or goes through heated bars then into coolant bottle.
  • Bypass on thermostat is usually 1/4″ hose, and the the Coolant bottle output is also 1/4″. Maintaining this small 1/4″ hose makes it much easier to run your plumbing in those tight areas. Hose flares out on the very end to 5/8″ for and easy connection to your water pump inlet!

See photo gallery for an easy to understand visual diagram on how to properly run your hoses!