Mercedes-Benz Coolant Thermostat / Housing 2742003400

OEM Part #: 274-200-34-00 (2742003400)

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This genuine OEM Coolant Thermostat and Housing, part number 2742003400, plays a crucial role in regulating engine temperature, located directly within the engine cooling system. This component maintains optimal engine performance by opening and closing the coolant flow to the radiator as engine temperatures fluctuate. Typical issues that necessitate replacement include overheating, erratic temperature readings, or coolant leaks, often resulting from wear over time or physical damage. Compatible with various Mercedes-Benz models, including E300 (2017-2019), C300 (2015-2018), SLK300 (2016), SLC300 (2017-2020), and GLC300 (2016-2019), this part is essential for ensuring your vehicle's longevity. Alternative part numbers include 2742000715 and 2742004300, reinforcing its versatility as an authentic factory-original replacement part.

Specifications

Specifications for Coolant Thermostat / Housing 2742003400
Fits Vehicle ModelC300, E300, GLC300, SLC300, SLK300
Fits Vehicle MakeMercedes-Benz
OEM Part No274-200-34-00 (2742003400)
Compatible OEM Part No 274-200-07-15, 274-200-43-00
CategoryRadiator / Coolant

Compatible Vehicles

Fits 24 vehicle configurations across 1 make, 2015-2020.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Mercedes-Benz

  • C300 2015-2018 · 8 variants
  • E300 2017-2019 · 3 variants
  • GLC300 2016-2019 · 8 variants
  • SLC300 2017-2020 · 4 variants
  • SLK300 2016
View all 24 vehicle configurations
Full vehicle fitment list for Coolant Thermostat / Housing 2742003400
Year Make Model Trim Engine Note
2015 Mercedes-Benz C300 Sedan 2.0L l4 Turbo
2016 Mercedes-Benz C300 Sedan 2.0L l4 Turbo
2016 Mercedes-Benz GLC300 SUV 2.0L l4 Turbo
2016 Mercedes-Benz SLK300 Convertible 2.0L l4 Turbo
2017 Mercedes-Benz C300 Convertible 2.0L l4 Turbo
2017 Mercedes-Benz C300 Coupe 2.0L l4 Turbo
2017 Mercedes-Benz C300 Sedan 2.0L l4 Turbo
2017 Mercedes-Benz E300 Sedan 2.0L l4 Turbo
2017 Mercedes-Benz GLC300 SUV 2.0L l4 Turbo
2017 Mercedes-Benz SLC300 Convertible 2.0L l4 Turbo
2018 Mercedes-Benz C300 Convertible 2.0L l4 Turbo
2018 Mercedes-Benz C300 Coupe 2.0L l4 Turbo
2018 Mercedes-Benz C300 Sedan 2.0L l4 Turbo
2018 Mercedes-Benz E300 Sedan 2.0L l4 Turbo
2018 Mercedes-Benz GLC300 SUV 2.0L l4 Turbo
2018 Mercedes-Benz SLC300 Convertible 2.0L l4 Turbo
2019 Mercedes-Benz E300 Sedan 2.0L l4 Turbo
2019 Mercedes-Benz GLC300 SUV 2.0L l4 Turbo
2019 Mercedes-Benz SLC300 Convertible 2.0L l4 Turbo
2020 Mercedes-Benz SLC300 Convertible 2.0L l4 Turbo
2016 Mercedes-Benz GLC300 SUV Coupe 2.0L l4 Turbo
2017 Mercedes-Benz GLC300 SUV Coupe 2.0L l4 Turbo
2018 Mercedes-Benz GLC300 SUV Coupe 2.0L l4 Turbo
2019 Mercedes-Benz GLC300 SUV Coupe 2.0L l4 Turbo

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