SpeedFactory Racing Billet B/D Series Thermostat Housing for Honda/Acura Engines

For those that wanted a premium billet option, we present the SpeedFactory Racing Billet B/D Series Thermostat Housing!

This housing directly replaces the OEM cast unit and is available in either -16AN or 32mm hose end specific versions, with no leak-prone modular fittings to deal with or the frustration of trying to remove the AN line & having to fight with 2 large wrenches in a very tight area to get the line off without taking the fitting with it. 

Includes an 1/8 NPT accessory port for a cooling system pressure sensor etc. (not included) along with provisions for the OEM cooling fan switch and engine harness ground. 

Product Features:  
•    Precision CNC machined from 6061-T6 billet aluminum
•    Black Anodized finish adds durability and eliminates corrosion
•    Laser-etched SFR logo
•    Dual bolt pattern fits both B & D Series (Except D16Z6)
•    OEM fan switch port
•    Engine harness ground provision 
•    x1 1/8 NPT accessory port (use for coolant pressure, etc.)