Fits:
- 2000 BMW 323Ci
- 1999–2000 BMW 323i
- 1999 BMW 323is
- 2001–2006 BMW 325Ci
- 2001–2005 BMW 325i
- 2001–2005 BMW 325xi
- 2000 BMW 328Ci
- 1999–2000 BMW 328i
- 1999 BMW 328is
- 2001–2006 BMW 330Ci
- 2001–2006 BMW 330i
- 2001–2005 BMW 330xi
- 2001–2005 BMW 525i
- 1999–2000 BMW 528i
- 2001–2005 BMW 530i
- 2001–2006 BMW X5
- 1999–2002 BMW Z3
- 2003–2006 BMW Z4
- 2004–2006 BMW X3
Mishimoto
MMTS-E46-99V2
Thermostats
Mishimoto has developed a performance low-temp racing thermostat for the BMW M52, M54, and M56 engines. This Mishimoto racing thermostat is ideal for modified engines that demand more from their cooling systems. Our thermostat begins opening 48°F (27°C) earlier than the stock thermostat to allow coolant to flow into your radiator and begin shedding heat sooner. This thermostat comes pre-installed in a durable OEM-quality housing and fits many BMWs including E46, E39, and E85 chassis. Like all Mishimoto performance products, this BMW M52, M54, and M56 thermostat is backed by our Mishimoto Lifetime Warranty.
Mishimoto thermostats are effective in noticeably lowering engine coolant temperatures. These thermostats are built with high-quality wax and are shipped with new rubber gaskets (where applicable) for a good, leak-free seal. They are then digitally calibrated for precise operation. Mishimoto thermostats open up at a slightly lower temperature than OEM or standard thermostats once your engine is fully warmed up. This allows the coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether you have a daily driver or a modified and upgraded turbo, Mishimoto thermostats will maintain optimal temperatures to efficiently cool your application.