Mercedes W204 X253 M274 Water Pipe Engine Cooling Coolant Hose Line A2742001751

Mercedes W204 X253 M274 Engine Coolant Hose Pipe A2742001751 is an original cooling system component designed for gasoline engines, specifically for Mercedes models from the W204 and X253 families with the M274 engine. This component ensures stable coolant flow, supporting safe engine operation under demanding road conditions.

Specifications and technical data

• SKU: A2742001751-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742001751
• Substitutable numbers: A2742001751, A 274 200 17 51
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented hose belongs to the Cooling System Hoses and Pipes group, responsible for the controlled flow of coolant between key engine components. For M274 gasoline units, a correctly selected coolant pipe is crucial for:

• maintaining stable engine operating temperature,
• reducing the risk of overheating during city and highway driving,
• ensuring even distribution of coolant throughout the block and accessories area.

Thanks to its design tailored to the specific engine bay architecture of W204 and X253 models, the hose allows for proper fluid routing without interfering with other accessory components.

Compatibility with M274 Gasoline Engine

The coolant pipe is designed to work with the M274 gasoline engine, used in more modern generations of the Mercedes C-Class and related SUV models. Proper geometric matching of the hose to this type of powertrain translates to:

• correct positioning in the engine bay without material stress,
• retention of factory mounting and routing points,
• consistency with the manufacturer's original cooling system concept.

Selecting a hose dedicated to a specific fuel type and engine reduces the risk of leaks and facilitates future fault diagnosis.

Characteristics of an Original Mercedes Part

As a Mercedes brand component, the coolant hose is manufactured according to the manufacturer's internal standards regarding resistance to temperature, pressure, and operating fluids. This means that:

• the hose material is adapted for long-term operation at elevated temperatures,
• the shape and diameter of the connections match the factory cooling system spigots,
• the component is compatible with original clamps and mountings used in these models.

Using an original part is a solution that maintains the vehicle's structural integrity while also being a cost-effective choice compared to new, unknown-origin aftermarket parts.

Condition, Service Application, and Installation Aspects

The coolant hose is offered in a used condition, making it an attractive option for service repairs when a damaged or leaking pipe in the cooling system needs replacement. This type of component is particularly worth considering in situations where:

• the hose has suffered mechanical damage (cracking, abrasion, deformation),
• there are coolant leaks around the factory connections,
• you are modernizing or restoring the cooling system after a thermal failure.

Due to its factory fit for W204 and X253 models with the M274 engine, installation is similar to the service procedures specified by the manufacturer, without the need for modifications to other system components.

Technical Support and Related Components

To better understand the impact of hoses, radiators, and fans on the thermal safety of the powertrain, it is worth reading the guide describing the operation of the cooling system in high temperatures – you will find it in the article Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings. This is a practical addition to your knowledge when planning comprehensive cooling system maintenance for your car.

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as additional coolant hoses, pipes, or tubes, check the available parts in the Mercedes Cooling System Hoses and Pipes category.