How to Assemble PTFE Braided Hose: A Comprehensive Guide

Learning how to assemble a PTFE braided hose is a critical step when building your own custom, high-performance car. In this guide, we'll walk you through every step of the process, which requires patience, precision, and the right set of tools and techniques. Let's dive into understanding what PTFE braided hose is and how to assemble it.

What is PTFE Braided Hose?

Before we dive into the assembly process, it's important to understand what a PTFE braided hose is. PTFE is a high-performance plastic, enduring high temperatures and pressure, where the braided exterior enhances its durability and resistance. It is widely used for fuel, oil, and hydraulic fluid applications in the automotive industry.

how to assemble ptfe braided hose

Tools You Will Need

To assemble a PTFE braided hose, you will need the following tools:

  • Hose cutter

  • Brass punch

  • Vice and Vice Jaws

  • Wrench set

  • PTFE hose end fittings

A Step-by-Step Guide to Assembling PTFE Braided Hose

Step 1: Cutting the Hose

Wrap a piece of masking tape around the area you plan to cut. This prevents fraying of the braid. Using a hose cutter, make a clean perpendicular cut through the tape.

Step 2: Preparing the Hose for Assembly

Slide a hose end socket over the cut end of the hose, thread side facing the end of the hose. Continue until it is flush with the cut end of the hose.

Step 3: Inserting the Olive

Next, you need to insert the olive into the hose. The olive is a separate piece that's meant to go between the PTFE hose liner and the braiding. Push it into the hose until it bottoms out.

Step 4: Installing the Hose End

Now, attach the hose end. Pull back the braiding and thread the end into the socket while making sure the olive stays in place. Use a vice to secure the hose and a wrench to bring together the socket and hose end.

Step 5: Testing the Assembly

Before actually using the hose in your vehicle, it's crucial to test it first. Connect the hose to the component and check for leaks.

Important Points to Remember

Remember, safety first. Always ensure you’re wearing the appropriate protective gear before starting the assembly process. Additionally, ensure the PTFE braided hose is compatible with your vehicle's make and model, and the fluids it will transport.


Assembling a PTFE braided hose may be intricate, but this guide should simplify the process. With the right tools and knowledge, you'll soon become a part of the world of high-performance automotive mechanics.

This task, though challenging, can be an exciting project for car enthusiasts and a cost-effective solution for professional garages. Remember, safety is paramount, and always seek professional advice when in doubt.

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