Proflow's RB billet aluminium thermostat housing is designed to to suit Nissan RB30 engines, replacing the top radiator hose outlet completely. It also features a -12AN ORB thread so you can run custom braided hose. Supplied with replacement gaskets and bolts.

More From This Category

Proflow Breather Cap, Push-In with Tube Smooth,Black Aluminum

Proflow Breather Cap, Push-In with Tube Smooth,Black Aluminum

$73.68

RTS Converter Mounting Ring Kit, 298mm, GM 27spl, 700R4, 4L60, 4L60E, Kit

RTS Converter Mounting Ring Kit, 298mm, GM 27spl, 700R4, 4L60, 4L60E, Kit

$351.00

RTS Bandit Billet Plus 258mm High Stall Torque Converter, Lockup, GM LS 4L60E/4L65E, Chev/Holden Commodore, 3200-3600, 850HP, Each

RTS Bandit Billet Plus 258mm High Stall Torque Converter, Lockup, GM LS 4L60E/4L65E, Chev/Holden Commodore, 3200-3600, 850HP, Each

$2,041.20