Mishimoto 70°C Racing Thermostat w/ Housing — Fits BMW M52/M54/M56

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SKU: MISMMTS-E46-99V2
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto 70°C Racing Thermostat with Housing for BMW M52/M54/M56

Elevate your BMW's cooling capabilities with the Mishimoto 70°C Low-Temperature Racing Thermostat. Engineered for M52, M54, and M56 engines, this performance thermostat is ideal for modified vehicles or those experiencing high thermal loads. By initiating coolant circulation to the radiator significantly earlier, it ensures your engine stays cooler and performs optimally under demanding conditions.

Performance Cooling Features:

  • Low-Temperature Operation: Opens approximately 48°F (27°C) earlier than the stock thermostat, starting coolant circulation sooner.
  • Enhanced Heat Dissipation: Promotes faster heat transfer to the radiator, reducing the risk of engine overheating during spirited driving or track use.
  • Complete Assembly: Includes a durable, OEM-quality housing for a straightforward, direct-fit installation.
  • Wide BMW Compatibility: Designed to fit numerous BMW chassis and engine combinations, including E46, E39, E85, and E83 models featuring M52, M54, and M56 engines.
  • Mishimoto Lifetime Warranty: Guarantees exceptional quality and long-term reliability.

This racing thermostat is a critical upgrade for enthusiasts seeking to maximize their engine's cooling efficiency. By keeping temperatures lower, it helps maintain consistent power output and protects vital engine components from heat-related damage. Upgrade your cooling system with Mishimoto's performance-driven solution.

Experience superior engine temperature control. Purchase the Mishimoto 70°C Racing Thermostat today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2000 BMW 323Ci Base
1999-2000 BMW 323i Base
1999 BMW 323is Base
2001-2006 BMW 325Ci Base
2001-2005 BMW 325i Base
2001-2005 BMW 325xi Base
2000 BMW 328Ci Base
1999-2000 BMW 328i Base
1999 BMW 328is Base
2001-2006 BMW 330Ci Base
2001-2005 BMW 330xi Base
2001-2005 BMW 525i Base
1999-2000 BMW 528i Base
2001-2005 BMW 530i Base
2004-2005 BMW X3 2.5i
2004-2006 BMW X3 3.0i
2001-2006 BMW X5 3.0i
2001-2006 BMW X5 4.4i
2002-2003 BMW X5 4.6is
2004-2006 BMW X5 4.8is
1999-2002 BMW Z3 M Coupe
1999-2002 BMW Z3 M Roadster
1999-2002 BMW Z3 Roadster
2003-2005 BMW Z4 2.5i
2003-2005 BMW Z4 3.0i
2006 BMW Z4 Coupe 3.0si
2006 BMW Z4 M Coupe
2006 BMW Z4 M Roadster
2006 BMW Z4 Roadster 3.0i
2006 BMW Z4 Roadster 3.0si

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto 70°C Racing Thermostat with Housing for BMW M52/M54/M56

Elevate your BMW's cooling capabilities with the Mishimoto 70°C Low-Temperature Racing Thermostat. Engineered for M52, M54, and M56 engines, this performance thermostat is ideal for modified vehicles or those experiencing high thermal loads. By initiating coolant circulation to the radiator significantly earlier, it ensures your engine stays cooler and performs optimally under demanding conditions.

Performance Cooling Features:

  • Low-Temperature Operation: Opens approximately 48°F (27°C) earlier than the stock thermostat, starting coolant circulation sooner.
  • Enhanced Heat Dissipation: Promotes faster heat transfer to the radiator, reducing the risk of engine overheating during spirited driving or track use.
  • Complete Assembly: Includes a durable, OEM-quality housing for a straightforward, direct-fit installation.
  • Wide BMW Compatibility: Designed to fit numerous BMW chassis and engine combinations, including E46, E39, E85, and E83 models featuring M52, M54, and M56 engines.
  • Mishimoto Lifetime Warranty: Guarantees exceptional quality and long-term reliability.

This racing thermostat is a critical upgrade for enthusiasts seeking to maximize their engine's cooling efficiency. By keeping temperatures lower, it helps maintain consistent power output and protects vital engine components from heat-related damage. Upgrade your cooling system with Mishimoto's performance-driven solution.

Experience superior engine temperature control. Purchase the Mishimoto 70°C Racing Thermostat today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2000 BMW 323Ci Base
1999-2000 BMW 323i Base
1999 BMW 323is Base
2001-2006 BMW 325Ci Base
2001-2005 BMW 325i Base
2001-2005 BMW 325xi Base
2000 BMW 328Ci Base
1999-2000 BMW 328i Base
1999 BMW 328is Base
2001-2006 BMW 330Ci Base
2001-2005 BMW 330xi Base
2001-2005 BMW 525i Base
1999-2000 BMW 528i Base
2001-2005 BMW 530i Base
2004-2005 BMW X3 2.5i
2004-2006 BMW X3 3.0i
2001-2006 BMW X5 3.0i
2001-2006 BMW X5 4.4i
2002-2003 BMW X5 4.6is
2004-2006 BMW X5 4.8is
1999-2002 BMW Z3 M Coupe
1999-2002 BMW Z3 M Roadster
1999-2002 BMW Z3 Roadster
2003-2005 BMW Z4 2.5i
2003-2005 BMW Z4 3.0i
2006 BMW Z4 Coupe 3.0si
2006 BMW Z4 M Coupe
2006 BMW Z4 M Roadster
2006 BMW Z4 Roadster 3.0i
2006 BMW Z4 Roadster 3.0si

Product Details

Product Description

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto 70°C Racing Thermostat with Housing for BMW M52/M54/M56

Elevate your BMW's cooling capabilities with the Mishimoto 70°C Low-Temperature Racing Thermostat. Engineered for M52, M54, and M56 engines, this performance thermostat is ideal for modified vehicles or those experiencing high thermal loads. By initiating coolant circulation to the radiator significantly earlier, it ensures your engine stays cooler and performs optimally under demanding conditions.

Performance Cooling Features:

  • Low-Temperature Operation: Opens approximately 48°F (27°C) earlier than the stock thermostat, starting coolant circulation sooner.
  • Enhanced Heat Dissipation: Promotes faster heat transfer to the radiator, reducing the risk of engine overheating during spirited driving or track use.
  • Complete Assembly: Includes a durable, OEM-quality housing for a straightforward, direct-fit installation.
  • Wide BMW Compatibility: Designed to fit numerous BMW chassis and engine combinations, including E46, E39, E85, and E83 models featuring M52, M54, and M56 engines.
  • Mishimoto Lifetime Warranty: Guarantees exceptional quality and long-term reliability.

This racing thermostat is a critical upgrade for enthusiasts seeking to maximize their engine's cooling efficiency. By keeping temperatures lower, it helps maintain consistent power output and protects vital engine components from heat-related damage. Upgrade your cooling system with Mishimoto's performance-driven solution.

Experience superior engine temperature control. Purchase the Mishimoto 70°C Racing Thermostat today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2000 BMW 323Ci Base
1999-2000 BMW 323i Base
1999 BMW 323is Base
2001-2006 BMW 325Ci Base
2001-2005 BMW 325i Base
2001-2005 BMW 325xi Base
2000 BMW 328Ci Base
1999-2000 BMW 328i Base
1999 BMW 328is Base
2001-2006 BMW 330Ci Base
2001-2005 BMW 330xi Base
2001-2005 BMW 525i Base
1999-2000 BMW 528i Base
2001-2005 BMW 530i Base
2004-2005 BMW X3 2.5i
2004-2006 BMW X3 3.0i
2001-2006 BMW X5 3.0i
2001-2006 BMW X5 4.4i
2002-2003 BMW X5 4.6is
2004-2006 BMW X5 4.8is
1999-2002 BMW Z3 M Coupe
1999-2002 BMW Z3 M Roadster
1999-2002 BMW Z3 Roadster
2003-2005 BMW Z4 2.5i
2003-2005 BMW Z4 3.0i
2006 BMW Z4 Coupe 3.0si
2006 BMW Z4 M Coupe
2006 BMW Z4 M Roadster
2006 BMW Z4 Roadster 3.0i
2006 BMW Z4 Roadster 3.0si

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