(Application: Fit for K Series K20 & K24 Swap Applications. 5) What is different with this housing is the two 3/8NPT ports located behind the thermostat. These allow you to properly run the recirculation hose and heat.
Aluminum Radiator Hose Swivel Neck Thermostat Housing for Honda K-Series K20 K24
For Honda K-Series K20 K24 Radiator Hose Swivel Neck Thermostat Housing Aluminum
Radiator Hose Swivel Neck Thermostat Housing Black for Honda K-Series K20 K24
Radiator Hose Swivel Neck Thermostat Housing Aluminum for Honda K-Series K20 K24