EVIL ENERGY Thermostat Housing Assembly for BMW 3.0L — Complete Kit with Thermostat & Gasket (Black)

EVIL ENERGY Thermostat Housing Assembly is a complete replacement kit that controls coolant flow for BMW 3.0L engines and includes the thermostat, gasket, housing, and installation gloves.

When a thermostat housing fails, engine temperatures can fluctuate, causing poor performance and potential long‑term wear. This EVIL ENERGY assembly is built to match the fit and function of the original unit for a wide range of BMW 3.0L applications, giving you the parts needed to restore reliable coolant regulation without hunting multiple components.

Which BMW models does this housing fit?

This assembly is engineered to be compatible with numerous BMW model years that use the 3.0L engine layout. Fitment covers late‑2000s and early‑2010s sedans, coupes, convertibles, and SUVs that originally used the specified OEM part numbers.

• Covers 1 Series, 3 Series, 5 Series, X3, and Z4 variants that share the 3.0L coolant system.
• Fits specific model years including 128i, 135i, 325i/325xi, 328i/328i xDrive, 330i, 335i/335is/335xi, 525i/525xi, 528i/528i xDrive, 530i/530xi, 535i/535xi, X3, Z4, and 1 Series M.
• Designed to replace multiple OE references (see product paperwork for the full list).

How does this assembly regulate engine temperature?

The integrated thermostat opens at a calibrated temperature so coolant flows to the radiator only when needed, helping the engine reach and maintain its ideal operating range. The matched housing and gasket preserve the seal to prevent leaks and maintain system pressure.

• Thermostat opening temperature: approximately 97°C (206.6°F).
• Housing form factor replicates original inlet/outlet geometry for correct coolant routing.
• Supplied gasket ensures a tight seal to reduce risk of coolant loss and air ingress.

What comes in the package and how does it simplify installation?

The kit contains all essential components for a direct replacement, reducing the chance of missing parts during service. Including a pair of nitrile gloves helps keep the job cleaner and safer during handling of coolant and components.

• One preassembled thermostat element for correct thermal response.
• One molded plastic housing engineered to match factory mounting points.
• One rubber gasket to restore a leak‑free connection and one pair of nitrile gloves for installation.

Will installing this housing affect engine longevity?

Proper thermostat operation helps the engine reach and hold its designed temperature, which supports efficient combustion and reduces the chance of abnormal wear. Replacing a failed housing with a quality assembly helps maintain coolant circulation and system integrity.

• Restores intended coolant flow patterns to help avoid overheating and cold running.
• Reduces the risk of coolant leaks that can lead to corrosion and deposits.
• Helps preserve engine components by maintaining stable operating temperatures.

Who this is for: This EVIL ENERGY Thermostat Housing Assembly is for BMW owners, independent mechanics, and professional shops seeking a complete, OEM‑compatible replacement for 3.0L coolant systems. Choose this kit if your vehicle shows temperature irregularities, coolant leaks at the housing, or if you're performing scheduled cooling system maintenance and want a straightforward, all‑in‑one swap.