Porsche Boxster 718 982 Cayman GT4 991 Turbo Coolant Water Hose Pipe 99110672400

Porsche Boxster 718 982 Cayman GT4 991 Turbo Coolant Water Hose Pipe is an original cooling system component from the Cooling system hoses and pipes group, designed for use in Porsche sports models. This used OEM part ensures factory geometric fitment and proper coolant flow characteristics, which translates into stable engine operation across a wide range of loads.

Specifications and technical data

• SKU: 99110672400
• Mark: Porsche
• Condition: Used
• OEM Part Number: 99110672400
• Substitutable numbers: 99110672400, 991 106 724 00
• Part type: Hose
• Category: Coolant Hoses

Function of the water hose in the Porsche cooling system

The water hose in Boxster 718, 982 Cayman GT4, and 991 Turbo models is responsible for safely routing coolant between key system components. A properly selected hose maintains pressure-tightness, minimizes the risk of engine overheating, and stabilizes operating temperatures during dynamic track driving and daily use.

The original hose geometry guarantees:

• precise routing in the engine bay without stress or kinks,
• compatibility with factory clamps and connectors,
• appropriate resistance to temperature and pressure within the cooling system.

Why choose an original used Porsche component

For demanding models such as the Boxster 718, 982 Cayman GT4, or 991 Turbo, an original cooling system hose is essential for maintaining factory engine performance parameters. A used OEM component is a reasonable compromise between cost and quality – you retain the correct fitment and material characteristics, avoiding issues typical of aftermarket replacements with uncertain specifications.

By choosing this water hose, you gain:

• a component designed specifically for the Porsche cooling system,
• consistency with other elements of the factory system,
• the ability to restore proper fluid circulation after the failure of an old hose.

Purpose and practical application

Porsche Boxster 718 982 Cayman GT4 991 Turbo Coolant Water Hose Pipe is suitable both for standard replacement of a worn hose and for repairs following engine overheating, where inspection of the entire cooling circuit is necessary. This component is particularly important in vehicles driven dynamically, where the cooling system operates under increased thermal load.

In practice, installation involves removing the old hose, cleaning the connectors, checking the clamps, and installing the hose in accordance with the factory routing. Thanks to the retention of the original shape and diameters, service work is predictable, and the risk of leaks after installation is minimized.

Technical support and additional materials

If you are planning a comprehensive repair or upgrade of your Porsche engine area and need other elements from the same group, such as additional lines, return hoses, or sections connecting the radiator to the block, check out the available parts in the Porsche cooling system hoses and pipes category.

For issues with cabin temperature and lack of cooling, it is also worth checking out our guide on selecting used air conditioning components – you will find practical tips in the article No cooling in the car: an original used A/C compressor as a proven alternative to expensive new parts.

If you want to reduce vehicle downtime at the workshop and better plan a larger scope of service work, the material on used parts logistics may also be helpful: how a wide assortment in one warehouse actually shortens your car's downtime at the mechanic.

Summary

This water hose from the Cooling system hoses and pipes group is a practical solution for owners of the Porsche Boxster 718, 982 Cayman GT4, and 991 Turbo who want to restore proper cooling system operation while maintaining factory design specifications. An original, used component allows for a technically correct repair without the need to resort to expensive new parts, while maintaining the high reliability of the entire system.