Mercedes SLK R172 Diesel OM651 Coolant Hose Left N/S Radiator Line A1725010682

The Left Coolant Hose for Mercedes SLK R172 with OM651 Diesel Engine is an original part from the Coolant Hoses and Pipes category, designed to route coolant around the radiator on the driver's side. This used OEM part ensures factory geometry, correct connection diameters, and compatibility with the original cooling system, facilitating hassle-free installation and maintaining proper engine operating parameters. Thanks to its precise fit for the OM651 unit, the hose helps maintain stable operating temperatures and reduces the risk of overheating during daily use.

Specifications and technical data

• SKU: A1725010682
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1725010682
• Substitutable numbers: A1725010682, A 172 501 06 82
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Coolant Hoses

Purpose and Function in the Cooling System

This left coolant hose operates in the circuit between the radiator and other system components, responsible for the efficient flow of coolant on the driver's side. Its design, tailored for the SLK R172 body and the OM651 diesel engine, allows for:

• maintaining the correct hose routing in the engine bay,
• proper positioning relative to the radiator and adjacent components,
• reducing stress and vibration due to appropriately selected material flexibility.

A correctly chosen hose in this part of the cooling system is crucial for maintaining stable coolant temperature, which translates to the longevity of the diesel engine and proper operation of its accessories.

Compatibility with OM651 Diesel Engine

The component is designed to work with the OM651 diesel unit, meaning it is adapted to the specific thermal conditions and operating pressures typical for diesel engines. As a result, the hose:

• is adapted to operate under higher thermal loads,
• takes into account the characteristic layout of components in the OM651 engine bay,
• ensures proper connection to the radiator outlets and other sections of the system.

Dedicated application in a diesel engine reduces the risk of leaks resulting from the use of hoses with incorrect geometry or intended for other engine versions.

Vehicle Placement and Installation Aspects

The hose is designed for installation on the left side of the vehicle, in the radiator area. This placement requires maintaining the correct length, shape, and support points to avoid rubbing against body parts or moving accessories. In practice, this means:

• easier fitting to factory brackets and guides,
• maintaining safe distances from hot engine components,
• reducing the risk of mechanical damage during suspension and engine unit operation.

Factory fit for the left side of the vehicle makes installation easier for the mechanic and reduces service time, minimizing the need for additional modifications.

Characteristics of a Used OEM Part

The offered coolant hose is a used part, sourced from disassembly, which allows for combining original manufacturing with a more favorable purchase cost. Compared to low-quality aftermarket alternatives, an OEM part ensures:

• maintaining factory coolant flow parameters,
• compatibility with original mountings and outlet diameters,
• consistency with other components of the Mercedes SLK R172 cooling system.

A used OEM part is a sensible choice for repairs where maintaining the original system design while controlling service costs is key.

Technical Support and Additional Materials

When planning comprehensive cooling system service for your Mercedes, it's worth considering other hoses, pipes, and radiator-related components to avoid recurring repairs in a short period. If you need other parts from the coolant circulation category for this brand, check the available parts in the Mercedes Coolant Hoses and Pipes category.

During periods of high temperatures, maintaining the efficiency of the entire cooling system is particularly important. Therefore, before installing a new hose, it's advisable to assess the condition of the radiator, fans, and other connections. You can read about the impact of summer heat on cooling efficiency and how to wisely use used components in the guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings.

If you want to plan a broader service strategy for your car and optimize repair costs while maintaining OEM quality, the material describing an economical approach to disassembled parts may also be helpful – you'll find it in the article Rising Repair Costs vs. The Boom in Used Parts – How to Save on Car Service?.