MILIPARTS Aluminium Thermostat Housing Assembly for 2005-2010 Ford Mustang 4.0L V6 — Complete Kit with Thermostat & Sensor

MILIPARTS aluminum thermostat housing assembly replaces the factory unit for 2005–2010 Ford Mustang 4.0L V6 models, including thermostat, temperature sensor, and gasket for a direct-fit install.

This replacement thermostat housing assembly is an upgraded aluminum unit designed to match original equipment dimensions for the 2005–2010 Ford Mustang 4.0L naturally aspirated V6 (Base Coupe and Base Convertible automatic transmission). It arrives as a complete kit — housing, thermostat rated to open at approximately 197.6 °F, temperature sensor, and gasket — so you can swap the entire assembly without sourcing separate parts. MILIPARTS focuses on fit and functional parity with the OEM part numbers 5R3Z-8592-BA / 5R3Z8592BA to minimize installation time and variability.

How does this thermostat housing assembly restore proper engine temperature control?

The thermostat and housing work together to regulate coolant flow to the radiator, opening at a designed temperature to allow coolant circulation and closing to retain heat when the engine is cold. Replacing a worn or cracked housing and a failing thermostat helps maintain consistent operating temperatures and prevents overheating cycles caused by coolant leaks or stuck thermostats.

• Includes thermostat calibrated to open at ~197.6 °F for expected operating range.
• Aluminum housing resists warping compared with some plastic originals.
• Complete kit: housing, thermostat, temperature sensor, and gasket for single-step replacement.

Will this part fit my 2005–2010 Mustang 4.0L V6?

Compatibility targets 2005–2010 Ford Mustang 4.0L V6 Base Coupe and Base Convertible with automatic transmission. Always verify fit by comparing the original part number and the pictured mounting configuration or contact us with your VIN or vehicle details to confirm compatibility.

• Designed to replace OEM references 5R3Z-8592-BA and 5R3Z8592BA.
• Intended for the 4.0L naturally aspirated V6 engine family used in specified Mustangs.
• Check photos and vehicle model listings or message MILIPARTS for verification.

What are the practical advantages of the aluminum assembly versus other materials?

Aluminum provides improved heat dissipation and better dimensional stability under thermal cycling compared with many plastic housings. That stability reduces the risk of leaks from warped flanges, and the metal housing can offer longer service life when paired with a properly functioning thermostat and gasket.

• Greater resistance to long-term heat-induced deformation than some polymers.
• Consistent OEM-style mounting points for direct replacement.
• Supplied gasket and sensor help ensure a sealed, functional installation.

How difficult is installation and what comes in the kit?

Installation is straightforward for those comfortable with basic cooling-system service: drain coolant, unbolt the old housing, swap parts, and refill and bleed the system. The assembly ships complete with the thermostat, temperature sensor, and gasket so you avoid multiple part orders and can perform the swap in a single service session.

• Kit includes housing, thermostat (197.6 °F opening), temperature sensor, and gasket.
• Direct-fit design follows original mounting locations to simplify installation.
• Follow vehicle service manual for torque values, coolant type, and bleeding procedure.

Who is this for: This MILIPARTS thermostat housing assembly is for Ford Mustang owners and DIY mechanics who need a reliable, direct-fit replacement for the 2005–2010 4.0L V6 platform. Choose this kit if you want an aluminum housing with the thermostat, sensor, and gasket included to streamline repair time—especially when replacing a leaking housing, a stuck thermostat, or upgrading from a deteriorated plastic unit. If you are unsure about fitment, provide your VIN or contact MILIPARTS customer support for confirmation before ordering.