Volvo V70 Mk3 Radiator Heater Hose Tube Pipe Line 31305157

Volvo V70 Mk3 Radiator Heater Hose Tube Pipe Line is an original component from the Cooling system hoses and pipes group, designed for operation within the vehicle's thermal system. This used OEM part ensures factory-fit, stable coolant flow, and predictable performance under operating conditions typical for Volvo models.

Specifications and technical data

• SKU: 31305157
• Mark: Volvo
• Condition: Used
• OEM Part Number: 31305157
• Part type: Hose
• Category: Coolant Hoses

Technical characteristics of the heater and radiator hose

The presented hose is designed as a component of the system transporting coolant between the heater and the radiator, maintaining appropriate wall rigidity and flexibility. The hose construction is adapted for operation at elevated temperatures and under working pressures typical for cooling systems in Volvo cars, which reduces the risk of deformation and leaks. The geometry of the hose is factory-matched for routing in the engine compartment, ensuring proper clearance from hot and moving components. Properly shaped bends and straight sections facilitate installation and minimize stress at mounting points.

Function in the Volvo cooling system

The heater and radiator hose is responsible for the stable flow of coolant between key components of the thermal system. A correctly selected and sealed hose:

• maintains the continuity of the coolant circuit in the heater and radiator area,
• reduces the risk of localized overheating in the engine compartment,
• supports uniform heat dissipation to the radiator and the vehicle interior,
• ensures proper compatibility with other hoses and cooling system components. By maintaining factory specifications, the hose works with original clamps and mounts, which facilitates service and subsequent leak checks.

Benefits of using an original Volvo hose

Using an original hose from the Cooling system hoses and pipes group allows for maintaining the integrity of the entire thermal system. In practice, this means:

• factory fitment for the cooling system of a specific Volvo model,
• predictable material behavior during long-term operation,
• easier diagnostics of potential leaks,
• reduced risk of incorrect hose routing in the engine compartment. A used OEM component is a sensible choice when servicing the vehicle, especially when aiming to maintain the original system design while optimizing repair costs.

Selection and installation of the hose in the cooling system

Before installation, it is recommended to verify compatibility with the specific engine version and cooling system configuration of your Volvo. During replacement, it is worth checking the condition of other hoses, connectors, and clamps to avoid the need for repeat repairs in the near future. During installation, it is important to ensure:

• correct positioning of the hose in factory guides,
• use of appropriate clamps with the correct clamping range,
• bleeding of the cooling system after refilling with coolant,
• leak check after reaching operating temperature.

Technical support and additional Volvo cooling system components

If you are planning a comprehensive repair or upgrade of the cooling system area in your Volvo and need other components from the same group, such as additional lines, hoses, or connecting pipes, check the available parts in the Volvo cooling system hoses and pipes category. When working on the vehicle's thermal system, it is also worth paying attention to the condition of the air conditioning system. In case of problems with interior cooling, the article discussing when it is worth using an original dismantled component will be helpful – you can find details in the material on choosing a used OEM air conditioning compressor as an alternative to a new part.