MILIPARTS Thermostat Housing for Ford/Mercury V6 4.0L (2002–2010) — Upgraded Aluminium, Direct-Fit OEM Replacement

MILIPARTS upgraded aluminum thermostat housing is a direct-fit coolant outlet designed to replace the factory unit on 2002–2010 Ford Explorer, Explorer Sport Trac and Mercury Mountaineer V6 4.0L models.

If your vehicle needs a reliable replacement for a cracked or leaking thermostat housing, this MILIPARTS part offers an OEM-quality aluminum construction that matches original mounting points and hose connections. It’s built to fit the specified years and models and replaces Ford part numbers 2L2Z8592AA, 2L2Z8592BA and 2L2Z8592BB, giving you a straightforward swap with no modification required.

Will this thermostat housing fit my 2002–2010 Ford or Mercury V6 4.0L?

Yes — the housing is engineered to be a direct replacement for the listed vehicles. Confirm your vehicle year, engine (V6 4.0L), and body type before ordering to ensure compatibility.

• Fits: 2002–2010 Ford Explorer
• Fits: 2007–2010 Ford Explorer Sport Trac
• Fits: 2002–2010 Mercury Mountaineer
• Replaces OEM numbers: 2L2Z8592AA, 2L2Z8592BA, 2L2Z8592BB

How does the MILIPARTS aluminum housing improve durability?

The upgraded housing uses corrosion-resistant aluminum instead of brittle plastic, which reduces the chance of cracking from heat cycles and coolant chemistry. Aluminum also dissipates heat well and holds threads and mounting surfaces better over time.

• Aluminum construction for increased strength
• OEM-quality machining for accurate fitment
• Resistant to warping and coolant degradation

What should I expect during installation?

Installation follows the same steps as the original factory part — unbolt the old housing, remove residual coolant, transfer any sensors or fittings, and torque the new unit to spec. The MILIPARTS piece is made to align with existing bolt holes and hose connections to minimize trimming or adapter needs.

• Direct bolt-on replacement, no modification required
• Transfer of thermostat, sensors, and seals recommended
• Check and refill coolant; inspect hoses and clamps

What quality and support does MILIPARTS provide?

MILIPARTS manufactures this part to meet OEM standards and inspects fitment and finish before shipping. If you have questions about fitment or installation, their customer support team is available to assist and advise on verification steps.

• Manufactured to OEM-quality material and safety standards
• Includes clear replacement references for part numbers
• 24/7 customer support to confirm fitment and answer concerns

Who is this for: This thermostat housing is made for DIY mechanics, professional technicians and fleet operators who need a reliable, long-lasting replacement for a failed factory coolant outlet on compatible Ford and Mercury V6 4.0L vehicles. Choose this MILIPARTS aluminum housing when you want an exact-fit part that resists heat and coolant wear, simplifies installation, and restores the cooling system’s integrity.