View our Specials! Coupon Code: SaveIn2026
Looking for aftermarket parts to modify or upgrade your 2004 BMW 325i with thermostats? At Tunersports.com we carry a huge selection of the top name brand performance thermostat parts and accessories.
 IN STOCK MMTS-E46-99EMishimoto has developed a direct-fit replacement thermostat for the BMW M52, M54, and M56 engines. This Mishimoto thermostat is the ideal replacement for your failed stock thermostat. Our thermostat comes pre-installed in a durable OEM-quality housing and fits many BMWs including E46, E39, and E85 c... Mishimoto BMW M52/M54/M56 Direct Fit Replacement Thermostat w/Housing - 97 Deg. C 2001-2005 BMW 325i Base $107.28 |
 IN STOCK MMTS-E46-99V2Mishimoto 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 48F (27C) earlier than the stock thermostat to allow coola... Mishimoto BMW M52/M54/M56 Racing Thermostat w/Housing - 70 Deg. C 2001-2005 BMW 325i Base $135.95 |
 IN STOCK MMTS-E90-07The Mishimoto BMW Racing Thermostat fits all N52, N54, and N55 engines. It will promote greater cooling efficiency throughout your engine. Mishimoto racing thermostats will significantly lower high engine temperature produced by modified and upgraded N52, N54 and N55 engines. Once the engine is full... Mishimoto BMW N52/N54/N55 Racing Thermostat 2004-2006 BMW 325i Base $100.17 |