Nisan Qashqai EGR Valve Line Pipe Hose 165767603R

Nisan Qashqai EGR Valve Line Pipe Hose is a component from the Tensioner and idler pulleys group, designed for the cooling system in Nissan vehicles. This OEM component ensures proper routing and distribution of coolant, which translates into stable engine operation and safe operating conditions.

Specifications and technical data

• SKU: 165767603R
• Mark: Nissan
• Condition: Used
• OEM Part Number: 165767603R
• Substitutable numbers: 165767603R
• Category: Idlers & Tensioners

Purpose and function in the cooling system

Nisan Qashqai EGR Valve Line Pipe Hose is responsible for precisely directing the flow of coolant between system components. A properly selected connector minimizes the risk of leaks, facilitates the maintenance of a stable engine operating temperature, and supports even heat dissipation in both urban and highway driving conditions.

An element from this group is particularly important during cooling system maintenance when symptoms such as a drop in fluid level, localized overheating, or visible signs of corrosion on hose connections appear. Replacing a worn connector with an original component allows for restoring proper sealing and reducing the thermal load on the engine unit.

Technical characteristics and fitment

The offered element comes from the Nissan OEM line, which means it maintains factory connection geometry, diameters, and mounting points. As a result, the connector works with existing hoses, clamps, and mounting elements without the need for modifications, and installation is predictable for the mechanic.

Precise manufacturing of sealing surfaces and a properly selected body material limit the risk of micro-leaks and deformation under the influence of temperature. This is especially important in vehicles used intensively, where the cooling system operates under increased thermal load.

Condition, verification, and preparation for installation

The component is offered in used condition, which allows for an economical repair while maintaining the manufacturer's original specifications. Before being listed, elements of this type are standardly verified for body integrity, the condition of connection ports, and the absence of visible mechanical damage that could hinder installation.

During installation, it is recommended to use new hose clamps and check the condition of the cooperating flexible hoses. A properly installed connector, following the tightening torques recommended by the vehicle manufacturer, ensures stable operation of the cooling system and reduces the risk of recurring leaks.

Benefits of using an original Nissan component

Using an original water connector in the cooling system brings a number of practical benefits:

• maintenance of factory fitment with other system components,
• reduction of the risk of leaks at hose connections,
• stable engine thermal operating conditions,
• easier diagnostics and future service due to compliance with manufacturer documentation.

For workshops and individual users, this means predictable installation time, lower risk of complaints, and the ability to maintain the vehicle in a configuration close to factory standards. This is particularly important for cars used daily, where reliability and repeatability of operating parameters are essential.

Related elements from the same group

If you are planning a comprehensive repair or upgrade of the engine area in your Nissan and need other elements from the same group, such as additional guide pulleys, idler pulleys, or tensioning elements working with accessories, check the available parts in the Nissan tensioner and idler pulleys category.

More about the trend for original used parts

For conscious users and service centers, choosing used OEM elements that combine factory fitment with reasonable repair costs is becoming increasingly important. If you want to better understand why the market is increasingly turning to such solutions, it is worth reading the analysis in the article Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026, which discusses the broader context of the availability and cost-effectiveness of automotive components.