This Aeroflow Performance billet thermostat housing is specifically designed to suit Nissan RB20, RB25 or RB30 engines and is factory OEM direct replacement. With the radiator hose outlet facing straight allows for OEM configuration. It features an internal -16ORB thread for custom plumbing applications as well. All Aeroflow Performance thermostat housings feature an O-ring base flange, as opposed to using the factory paper style gasket, this ensured a superior leak free seal. Machined from T6-6061 billet aluminium and available in several anodised finishes.
Aeroflow Billet Thermostat Housing RB