Allmotorparts Thermostat Housing Assembly for Ford Mazda 2.0–2.5L (Replaces RT1193/34044) — OE Fit, Leak-Resistant

This thermostat housing sits where the engine meets the cooling system and houses the thermostat valve that helps the engine reach and maintain proper operating temperature. Over time housings can crack, leak, or allow the thermostat to stick, which triggers low coolant warnings or error codes such as P0128 or P0125. This Allmotorparts aftermarket assembly is built to match OE fit and function for a wide range of 2.0L–2.5L Ford and Mazda engines and installs directly in place of part numbers RT1193, RT-1193, and 34044.

What problem does this thermostat housing solve?

When the original housing develops leaks, breaks, or the thermostat within becomes stuck, coolant flow can be restricted or lost and the engine may run incorrectly warm or trigger fault codes. Replacing the housing with a dependable assembly restores a sealed coolant pathway and reliable thermostat operation.

• Replaces cracked or leaking housings to stop coolant loss.
• Resolves thermostat valve sticking that causes temperature codes.
• Restores proper coolant routing between engine and radiator.

Which vehicles will this Allmotorparts unit fit?

This aftermarket assembly is compatible with numerous Ford, Mazda, Lincoln and Mercury models that use 2.0L, 2.3L or 2.5L engines. Always verify your exact year, engine size and OEM part number against the compatibility list before purchase to ensure correct fitment.

• Ford: Escape (2005–2019), Focus (2003–2011), Fusion (2006–2020), Ranger (2007–2011 2.3L), Transit Connect (2014–2022), Ecosport (2004–2012), Mondeo (2002–2006).
• Mazda: Mazda3 (2007–2013), Mazda6 (2003–2013), CX-7, MX-5 Miata, B2300 and others listed in compatibility.
• Lincoln: MKZ (2011–2012); Mercury: Mariner and Milan (2006–2011).

How does this aftermarket housing compare to the original part?

Allmotorparts manufactures this assembly to match the original equipment's fit, form and function without being an OEM-branded part. It is brand new, constructed from materials intended to meet or exceed the performance of the factory component and ready for direct installation.

• Designed to replace OEM part numbers RT1193, RT-1193, 34044.
• Made to offer OE-style mounting points and coolant passages for straightforward installation.
• Packaged new for immediate replacement; not a rebuilt or used item.

What should I check before installing this replacement housing?

Confirm your vehicle’s year, engine displacement and OEM part reference to avoid fitment errors. Inspect surrounding hoses, gaskets and thermostat condition while replacing the housing to prevent future leaks and to ensure the cooling system seals correctly.

• Compare RT1193 / 34044 against the part you are removing for matching ports and bolt pattern.
• Replace any worn hoses, clamps or the thermostat gasket at the same time for a reliable repair.
• Bleed and pressure-test the cooling system after installation to check for leaks.

Who is this for: This Allmotorparts thermostat housing assembly is intended for DIY mechanics and professional technicians replacing a failed or leaking housing on compatible Ford, Mazda, Lincoln or Mercury 2.0–2.5L models. Choose this part if you need a new, aftermarket replacement that installs like the original and restores proper coolant routing and thermostat operation. Note: this is an aftermarket replacement, not a factory-branded component. Always verify vehicle compatibility before purchase.