Mishimoto Thermostat W/ Housing & Sensor - BMW M52, M54, M56 Engines

Product Details

Developed for a wide range of BMW chassis including the 3 Series, 5 Series, and Z-models, the Mishimoto Thermostat Assembly (Part # MMTS-E46-99E) focuses on precision fitment and long-term durability. This unit serves as a robust alternative to the failure-prone factory units that often crack or fail in the open position. By utilizing premium materials and a strict adherence to OEM dimensions, this thermostat maintains the thermal stability required for both daily commuting and spirited driving.

Key Features:

• Comprehensive Compatibility: Fits a massive array of BMW platforms from 1999 to 2006, including the 325i, 330i, 525i, and X5 3.0i.

• Restores OEM Performance: Calibrated to match the factory opening behavior, ensuring the ECU detects correct operating temperatures and maintains proper fuel mapping.

• Durable Construction: Built with an OEM-quality housing designed to withstand the high-pressure and extreme heat cycles of modern cooling systems.

• Complete Kit: Purchase includes the thermostat, housing, and integrated sensor, providing a full refresh for the thermostat assembly in one box.

• Accident Protection: Mishimoto’s unique warranty includes accident protection, ensuring a replacement if your vehicle is involved in a collision.

Specifications:

• Part Number: MMTS-E46-99E

• Includes: Thermostat, Housing, Sensor, and Gasket

• Fitment Range: 1999–2006 (Select models)

• Inlet/Outlet Style: Quick-disconnect compatible

• Weight: 0.8 lbs

• Manufacturer: Mishimoto

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