Hybrid Racing 5/8" Barb Coolant Return Fitting for K Series Rays with working temperatures from -40°C

with working temperatures from -40°C to 150°C and a maximum burst pressure of 37 Bar(g)

in general

despite being 2

Genuine Honda B series rocker gasket

Hybrid Racing 5/8" Barb Coolant Return Fitting for K Series Rays with working temperatures from -40°CYou swapped a K series into your S2000 or your Miata and you're staring at the factory steel hard line that's supposed to route the coolant return around the back of the engine. It doesn't fit. The firewall's in the wrong place. The heater core's not where Honda thought it'd be. You can't use the factory hard line and you need a different way to get coolant back to the block. This Hybrid Racing fitting slips into the opening on the thermostat housing