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The transmission cooling system is one of these key areas, and the debate over the use of rubber hoses as transmission cooling lines is a growing concern. This article will explore this topic in depth, can you use rubber hose for transmission cooler lines, analyze the advantages and disadvantages of using rubber hose.

Can I use rubber hose for transmission cooler lines?

Answer: Yes, but it is not recommended. Rubber hoses have good flexibility and abrasion resistance, but they tend to deteriorate and deform at high temperatures, which can lead to leaks.

Advantages of rubber hoses

  1. Flexibility and easy to install:
    Rubber hoses have more flexibility to bend and flex than metal pipes, which makes installation easier. Owners can more easily adapt to different vehicle layouts, making installation less difficult.
  2. Shock-absorbing performance:
    Rubber hoses perform well when subjected to vibration and shock, helping to reduce the transmission system’s vibration transfer and minimize the impact on other components. This is beneficial for improving overall driving comfort and extending component life.
  3. Corrosion resistance:
    Compared to metal hoses, which are prone to rust, rubber hoses offer greater corrosion resistance, especially in bad weather and poor road conditions, and provide better protection from the external environment.
  4. Lower cost:
    Rubber hoses are relatively cheap to manufacture, which makes them more affordable in the market. For some car owners on a budget, this can be an attractive option.
rubber hoses
rubber hoses

Disadvantages of rubber hoses

  1. Poor heat resistance:
    Compared to metal pipes, rubber hoses are less heat resistant. Under extreme heat conditions, the rubber may harden and deteriorate, thus affecting the performance of the cooling system. This is an important factor to consider.
  2. Pressure limitation:
    Rubber hoses typically have a lower tolerance for pressure than metal pipes. In some high-performance or high-pressure vehicle applications, a more robust cooling system may be required, and rubber hoses may not be strong enough.
  3. Relatively short service life:
    Rubber has a relatively short service life because it tends to deteriorate over long periods of time. This can lead to more frequent replacements and maintenance, increasing costs and inconvenience for vehicle owners.
  4. Susceptibility to physical damage:
    Rubber hoses are relatively more susceptible to physical damage such as impacts and scratches. This may increase the risk of system failure under adverse road conditions.

The following is a comparison of the advantages and disadvantages of using rubber hoses, metal hoses and plastic hoses as transmission cooler lines:

Rubber hoseGood flexibility and abrasion resistanceHigh temperature resistance, easy to age and deform
Metal hoseHigh temperature resistance, not easy to age and deformPoor flexibility, easy to rust
Plastic hoseGood performance of high temperature resistance, not easy to aging and deformationGeneral flexibility, easy to rupture

If it is necessary to use rubber hoses as transmission cooler lines, the following points should be noted:

  1. Select a rubber hose that is resistant to high temperature and aging.
  2. Regularly check the rubber hose for abnormalities such as cracks, bulges or hardening.
  3. Replace the rubber hose in time when abnormalities are found.
  4. If conditions permit, it is recommended to use metal or plastic hoses as transmission cooler lines. Metal and plastic hoses are more suitable for transmission cooler lines because they have good resistance to high temperatures and are less prone to aging and deformation.


To summarize, can you use rubber hoses for transmission cooler lines? It’s a viable option, but it’s vital to consider factors such as heat resistance, pressure limitations, durability and potential physical vulnerability, and regular inspection and maintenance are recommended to ensure the continued reliability of the transmission cooling system.

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