DHD -10AN Billet Thermostat Housing Adapter - Choose Size

Simplify cooling system routing on your Duramax with this billet -10AN thermostat fitting. These fittings are designed to replace the factory steel tube adjacent to the thermostat housing and provide flexibility with hose routing. This is a must have for trucks with aftermarket intakes, high flow y-bridges and fuel system alterations.

Features:

• 1pc Billet Aluminum Fitting
• Nitrile O-Ring
• Stainless Socket Head Screw
• Use Menu to Select Height Option

Height Selection: (Use the measurements below to determine what works best for your application)

Short - This fitting has an installed height of 1-5/8". This fitting works well for most applications where your coolant hoses will run under the intake piping and below the alternator charge wire. Works well with 45 and 90 -10AN degree fittings.

Long - This fitting has an installed height of 3". This fitting works well for routing coolant hoses above the intake piping and alternator charge wire. Typically paired with 90 degree fittings.

Fitment:

2004.5-2007 LLY and LBZ Duramax 6.6L