Dorman Fuel Line Repair Tool 800-301 Universal Fit — Nylon Tube Cutter for Quick, Repeatable Cuts

The Dorman 800-301 Fuel Line Repair Tool is a universal, easy-to-use kit component designed to remove and replace damaged nylon fuel line sections without swapping the whole assembly.

When a short section of fuel line fails, replacing only the damaged portion saves time, parts, and labor. The Dorman 800-301 works with a range of nylon fuel tube sizes and pairs with Dorman’s repair fittings and kits to restore a sealed, factory-style connection. It’s engineered for quick, repeatable cuts and disconnections so you can complete common fuel line repairs with fewer steps.

How does this tool simplify fuel line repairs?

The 800-301 lets you isolate and remove only the compromised section of nylon fuel tubing rather than replacing an entire harness. That reduces material costs and shortens repair time, especially for hard-to-access runs.

• Cuts and prepares nylon tubing cleanly for new fittings.
• Compatible with various nylon line diameters used in many vehicles.
• Reduces need to remove long fuel assemblies or multiple connectors.

Which fuel lines and sizes work with this tool?

This Dorman tool is intended for nylon fuel lines commonly used on modern vehicles. It handles multiple common diameters so you can use it across different makes and models without a separate cutter for each size.

• Designed for nylon fuel tubing of assorted outer diameters.
• Use with Dorman nylon repair fittings for reliable reassembly.
• Not for metal hard lines or braided stainless hose.

What steps are involved using the Dorman 800-301?

Using the tool typically involves cutting or pinching out the damaged section, prepping the tube end, and installing the replacement connector. The process is straightforward and suitable for shop technicians or skilled DIYers comfortable with fuel-system work.

• Locate and mark the damaged area, then cut or disconnect with the tool.
• Deburr and seat the tube into the replacement fitting or repair kit components.
• Pressure-test the repair for leaks per manufacturer guidance.

What support and compatibility can I expect?

Dorman backs every part with technical assistance from ASE Blue Seal certified support staff, and the 800-301 integrates with Dorman’s range of nylon fuel line connectors and repair kits. That makes troubleshooting and parts selection simpler when you need matching fittings.

• Access to Dorman technical support for installation questions.
• Pairs with Dorman’s Nylon Fuel Line Repair Kit components for complete repairs.
• Useful across many repair scenarios in automotive and light-truck fuel systems.

Who is this for? The Dorman 800-301 is aimed at professional technicians, independent shop owners, and experienced DIYers who want a reliable, universal tool to repair nylon fuel tubing without replacing entire assemblies. It’s ideal when you need a cost-effective, time-saving solution that integrates with Dorman’s repair fittings and kits while keeping repairs neat and serviceable.