Fleece Performance Cast Aluminum Thermostat Housing — 2011-2025 6.7L Power Stroke
Fleece Performance Cast Aluminum Thermostat Housing — 2011-2025 6.7L Power Stroke
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Tired of chasing coolant leaks from a brittle plastic thermostat housing? Fleece Performance's cast aluminum thermostat housing is a direct drop-in replacement that eliminates the weak OEM plastic unit for good. Compatible with all factory and aftermarket thermostats, this is the last thermostat housing your 6.7L Power Stroke will ever need. New O-rings included.
Features
- Cast aluminum construction — far more durable than OEM plastic
- Direct drop-in replacement for factory and aftermarket housings
- Compatible with all factory and replacement thermostats
- New O-rings included
Why Upgrade?
The factory plastic thermostat housing becomes brittle over time and is prone to cracking — leading to coolant leaks, low coolant levels, and the unmistakable smell of coolant during or after engine operation. Left unchecked, a cracked housing can cause engine overheating and serious damage.
Diagnosing a Failing Housing
- Visual Inspection: Check the thermostat housing for cracks or physical damage
- Pressure Test: Perform a coolant system pressure test and observe for leaks at all split lines, including the thermostat housing and coolant crossover manifold
The Solution
Fleece Performance's cast aluminum thermostat housing upgrade is a direct factory replacement — no modifications, no hassle. Bolt it in and get back on the road with confidence.
