EVIL ENERGY Thermostat Housing Assembly for BMW 3.0L — 11537549476 Replacement Kit with Thermostat & Gasket

EVIL ENERGY Thermostat Housing Assembly 11537549476 is a complete replacement kit that regulates coolant flow for compatible BMW 3.0L engines, restoring proper operating temperature control.

This OEM-replacement thermostat housing kit is engineered to fit a long list of BMW 3.0L models and includes the thermostat, plastic housing, rubber gasket and nitrile gloves so you can install with confidence. Built to the opening temperature spec of 97°C (206.6°F), the assembly helps the engine reach and maintain its designed thermal range by metering coolant to the radiator. The part replaces multiple OE numbers and is intended for routine service or repair when the original housing becomes cracked, leaking, or the thermostat fails to open and close reliably.

How does this thermostat housing assembly restore proper engine temperature?

The assembly contains a thermostat calibrated to begin opening at 97°C, allowing coolant to flow to the radiator only when needed. This helps the engine warm up quickly and prevents overheating by increasing coolant circulation as temperature rises.

• Factory-style thermostat element calibrated to specified opening temperature.
• Integrated plastic housing for secure mounting and coolant routing.
• New rubber gasket to ensure a leak-free seal at the mating surface.
• Complete kit reduces the risk of rework from missing components.

Which BMW models and OE numbers is this part compatible with?

The EVIL ENERGY housing is designed as a direct fit for many BMW vehicles with 3.0L engines across multiple model years. It replaces several OE references so it can serve as a cross-replacement for older or superseded part numbers.

• Compatible with BMW 128i, 135i, 325i, 328i (including xDrive/xi), 330i, 335i, 335is, 525i, 528i, 530i, 535i, X3, Z4 and 1 Series M (see specific years for fitment).
• Replaces OE and aftermarket numbers such as 11537549476, 11537544788, 11537536655 and other listed equivalents.
• Suitable for both rear- and all-wheel drive 3.0L variants where this housing is specified.
• Check vehicle VIN or factory parts catalog for exact fit confirmation before ordering.

What comes in the package and what should I expect during installation?

The kit arrives with the primary components required for a straightforward swap and includes gloves to help during handling. Typical installation requires basic hand tools, coolant drainage, and careful sealing to avoid leaks.

• Included: thermostat x1, plastic housing x1, rubber gasket x1, nitrile gloves x1.
• Expect to drain some coolant and replace it after installation; reuse or replace coolant per manufacturer guidelines.
• Torque bolts to OEM specifications and inspect surrounding hoses and clamps while accessible.
• If unsure, professional installation is recommended to ensure proper sealing and bleed procedure.

Will this part improve reliability compared with a worn original housing?

Replacing a cracked or sticking thermostat housing can stop coolant leaks and restore consistent coolant flow, reducing the chance of overheating or excessive warm-up time. Using a complete replacement kit reduces the likelihood of installation issues related to missing gaskets or degraded components.

• New housing reduces risk of plastic cracks or warped mating surfaces found in aged parts.
• Fresh gasket ensures seal integrity at the coolant junction.
• Thermostat tested to open at the specified temperature for predictable operation.
• Complete kit minimizes follow-up parts requests and repeat disassembly.

Who is this for: This EVIL ENERGY thermostat housing assembly is intended for BMW owners, independent mechanics and service shops replacing a failed thermostat or leaking housing on 3.0L BMW engines. It’s especially useful for anyone who wants a direct-fit replacement that matches common OE numbers and includes the parts needed for a single-visit repair. Verify fitment for your model year and engine variant before purchase to ensure compatibility.