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Item #:
6090312
Mishimoto MMTS-MB55-03L Racing Thermostat Compatible With Mercedes-Benz E-class AMG 2003-2006
Item #:
6090312
USD 90
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What Stands Out
High Performance
Designed for racing conditions, this thermostat maintains optimal engine temperatures, enhancing performance and throttle response for Mercedes-Benz E-Class AMG models from 2003-2006.
Direct Fit
Engineered specifically for select Mercedes-Benz models, ensuring easy installation and compatibility without the need for modifications, making it a convenient choice for enthusiasts and mechanics alike.
Durable Construction
Manufactured with high-quality materials to withstand extreme temperatures and pressure, providing long-lasting reliability and performance, ideal for both street driving and demanding racing environments.
Product Details
| Controller Type | Mechanical knob |
| Additional Features | Lower Activation Temperature |
| Specific Uses For Product | Racing, Track Use |
| Temperature Control Type | Cooling |
| Power Source | Engine Heat (Mechanical) |
| Display Type | analog |
| Control Type | Indirect Control |
| Control Method | Touch |
| Mounting Type | Internal Engine Mount |
| Backlight | No |
| Smart Home Compatibility | Not Smart Home Compatible |
| Color | Brass |
| Shape | Round |
| Item Weight | 0.2 Pounds (90 grams) |
| Brand Name | Mishimoto |
| Model Name | MMTS-MB55-03L |
| Included Components | Automotive Parts |
| Model Number | MMTS-MB55-03L |
| UPC | 748354026344 |
| Global Trade Identification Number | 00748354026344 |
| Manufacturer | Mishimoto |
| Manufacturer Part Number | MMTS-MB55-03L |
| Item Type Name | Racing Thermostat (Mercedes Benz E55 AMG , 2003-2006) |
| Unit Count | 1.0 Count |
| Material Type | Stainless Steel |
| Finish Types | Glossy |
| Brand | Mishimoto |
| Special Feature | Lower Activation Temperature |
Who Should Buy?
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Performance Enthusiasts
Ideal for users seeking improved engine performance and cooling efficiency in their Mercedes-Benz E-Class AMG.
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Track Day Drivers
Great choice for individuals participating in track events who need reliable temperature management under extreme conditions.
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Merc-Benz Modifiers
Perfect for those customizing their vehicle's cooling system for better performance and responsiveness.
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Daily Commuters
Not suitable for regular drivers seeking stock performance without modifications or added features.
Product Description
Mishimoto MMTS-MB55-03L Racing Thermostat Compatible With Mercedes-Benz E-class AMG 2003-2006
About This Item
Upgrade your Mercedes-Benz E-class AMG cooling system with the Mishimoto MMTS-MB55-03L Racing Thermostat. Designed specifically for the 2003-2006 E55 AMG, this thermostat will enhance the overall cooling efficiency of your stock or modified M113 5.4L Supercharged engine. Featuring a lower opening temperature than standard thermostats, the Mishimoto E55 AMG racing thermostat allows coolant to flow through the engine sooner, resulting in reduced and maintained cooler engine temperatures. This is especially beneficial for high-performance vehicles that generate more heat. Whether you're hitting the streets or taking your AMG to the track, the Mishimoto 03-06 E55 AMG racing thermostat is the perfect addition to ensure optimal cooling performance.
It is a direct replacement for the stock thermostat, making installation a breeze. Invest in the Mishimoto Racing Thermostat for your Mercedes-Benz E-class AMG and experience improved cooling efficiency for your high-performance vehicle. Don't settle for standard when you can enhance your engine's performance with this top-quality thermostat. Upgrade your cooling system today and take your AMG to the next level.
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Customer Questions & Answers
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Question:
What is the functionality of the Mishimoto MMTS-MB55-03L Racing Thermostat?
Answer: The Mishimoto MMTS-MB55-03L Racing Thermostat is designed to maintain optimal engine temperatures in your Mercedes-Benz E-Class AMG from 2003-2006. It enables quicker engine warm-up by opening at a lower temperature compared to standard thermostats, allowing for enhanced engine performance and efficiency. This is particularly useful for high-performance driving or in difficult conditions, where managing engine heat is crucial to prevent overheating. -
Question:
Is the Mishimoto racing thermostat compatible with other Mercedes models?
Answer: The Mishimoto MMTS-MB55-03L Racing Thermostat is specifically designed for the Mercedes-Benz E-Class AMG models produced between 2003 and 2006. While it may offer similar performance characteristics, fitting it to other Mercedes models is not recommended. Always check your vehicle's compatibility with the product to ensure proper functioning and optimal performance. -
Question:
How does the Mishimoto MMTS-MB55-03L improve performance?
Answer: This racing thermostat enhances performance by lowering the opening temperature, allowing the engine to reach its optimum working temperature faster. This is vital for high-performance driving, as it ensures efficient combustion and power delivery. With improved engine temperatures, drivers may notice better throttle response and increased power during high-speed maneuvers, making it an excellent choice for racing enthusiasts. -
Question:
What materials are used in the Mishimoto MMTS-MB55-03L thermostat?
Answer: The Mishimoto MMTS-MB55-03L is constructed with high-quality materials designed to withstand extreme temperatures and pressures. Its aluminum housing and advanced silicone seal ensure durability and reliability under performance driving conditions. This robust construction makes it suitable for both everyday driving and track use, providing peace of mind for those pushing their vehicle to its limits. -
Question:
How often should I replace the racing thermostat?
Answer: While the Mishimoto MMTS-MB55-03L is designed for longevity, it is advisable to inspect it during regular maintenance intervals and replace it if you notice any signs of degradation, such as leaks or incorrect temperature regulation. Keeping an eye on your engine's performance and coolant temperature can help determine when a replacement is necessary, ensuring that your vehicle continues to operate efficiently. -
Question:
Will this thermostat affect fuel economy?
Answer: Installing the Mishimoto MMTS-MB55-03L Racing Thermostat can lead to better fuel economy under certain driving conditions. By ensuring that your engine runs at an optimal temperature, it allows for more efficient combustion, which in turn can enhance fuel efficiency. High-performance applications may also benefit from improved throttle response, translating into a more engaging driving experience while optimizing fuel consumption. -
Question:
Can I install the Mishimoto MMTS-MB55-03L myself?
Answer: Yes, the installation of the Mishimoto MMTS-MB55-03L Racing Thermostat can be accomplished by those familiar with basic automotive maintenance. The installation generally involves draining the coolant, removing the old thermostat, and replacing it with the new one. However, if you're unfamiliar with automotive repairs, enlisting professional help is recommended to avoid potential issues. -
Question:
What is the temperature range this thermostat operates within?
Answer: The Mishimoto MMTS-MB55-03L Racing Thermostat typically opens at a lower temperature compared to conventional thermostats, generally around 68-75°C (155-167°F). This range is strategically designed to allow for quicker engine warm-up times while maintaining optimal operating temperatures during performance driving. This is crucial for performance vehicles that require precise temperature management to maximize efficiency and power. -
Question:
How does this thermostat compare to stock options?
Answer: The Mishimoto MMTS-MB55-03L Racing Thermostat offers more aggressive performance characteristics compared to stock thermostats. With a lower opening temperature, it improves engine responsiveness and efficiency, especially in high-stress scenarios like racing or spirited driving. This upgraded performance can significantly enhance your driving experience compared to standard options that may not adequately manage engine heat in demanding conditions. -
Question:
Where can I buy Mishimoto MMTS-MB55-03L Racing Thermostat Compatible With Mercedes-Benz E-class AMG 2003-2006?
Answer: You can purchase the Mishimoto MMTS-MB55-03L Racing Thermostat at Ubuy. They offer a reliable shopping experience, ensuring that you get the right part for your vehicle with ease.
Mishimoto Thermostats MMTS-MB55-03L Editorial Review
The Mishimoto MMTS-MB55-03L Racing Thermostat is a compatible option for the Mercedes-Benz E-class AMG 2003-2006. It is designed to open 13 degrees cooler than a stock thermostat, making it a great option for those looking to improve their engine's cooling performance. However, there seem to be some confusion and dissatisfaction among customers regarding the compatibility and accuracy of the product's description. Some customers have received the wrong thermostat when ordering, causing frustration. Additionally, there is conflicting information about the thermostat's opening temperature, with the description on eBay stating 180 degrees and the response to a customer stating 167 degrees. Overall, while the product has potential, there are concerns about accuracy and customer satisfaction that should be addressed.
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Pros
- Compatible with Mercedes-Benz E-class AMG 2003-2006
- Designed to open 13 degrees cooler than stock thermostat
Cons
- Confusion and dissatisfaction regarding compatibility
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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USD 90
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Features & Benefits
- Mishimoto racing thermostat for the 03-06 Mercedes Benz E55 AMG
- Lower opening temperature than standard thermostats
- Allows coolant to flow through the engine sooner
- Reduces and maintains cooler engine temperatures
- Perfect addition for street or track AMG
- Direct replacement for the stock thermostat
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