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Homelite UT20784 trimmer/brushcutter Parts

Here are the diagrams and repair parts for Homelite UT20784 trimmer/brushcutter, as well as links to manuals and error code tables, if available.

Homelite UT20784 trimmer/brushcutter
By Schematic
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This is the number corresponding to the part on the diagram / schematic

Browse Parts for UT20784 Line Trimmers

  • Handle for Homelite UT20784 - Part UP06534

    Shaft/spool/string/grass deflector diagram

    Handle

    Part #UP06534

    The manufacturer no longer makes this part, and there's no substitute part

  • Retainer for Homelite UT20784 - Part UP00104

    Shaft/spool/string/grass deflector diagram

    Retainer

    Part #UP00104

    The manufacturer no longer makes this part, and there's no substitute part

  • Hex Nut, Left for Homelite UT20784 - Part UP04127

    Shaft/spool/string/grass deflector diagram

    Hex Nut, Left

    Part #UP04127

    The manufacturer no longer makes this part, and there's no substitute part

  • Line Trimmer Primer Bulb for Homelite UT20784 - Part UP04803

    Carburetor/fuel tank diagram

    Line Trimmer Primer Bulb

    Part #UP04803

    The manufacturer no longer makes this part, and there's no substitute part

  • Truss Hd S for Homelite UT20784 - Part UP04247

    Truss Hd S

    Part #UP04247

    The manufacturer no longer makes this part, and there's no substitute part

  • Slotted Hex for Homelite UT20784 - Part UP04155

    Shaft/spool/string/grass deflector diagram

    Slotted Hex

    Part #UP04155

    The manufacturer no longer makes this part, and there's no substitute part

  • Machine Screw for Homelite UT20784 - Part UP04258

    Machine Screw

    Part #UP04258

    The manufacturer no longer makes this part, and there's no substitute part

  • Hex Head M for Homelite UT20784 - Part UP04159

    Hex Head M

    Part #UP04159

    The manufacturer no longer makes this part, and there's no substitute part

  • Head String for Homelite UT20784 - Part DA03001A

    Head String

    Part #DA03001A

    The manufacturer no longer makes this part, and there's no substitute part

  • Cable for Homelite UT20784 - Part UP03172

    Cable

    Part #UP03172

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Repair time and Difficulty

 15 minutes or less
How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

Repair time and Difficulty

 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

Repair time and Difficulty

 15 minutes or less

Effective articles & videos to help repair your line trimmers

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

Line trimmer: Preventing fuel vapor lock in hot summer conditions

Line trimmer: Preventing fuel vapor lock in hot summer conditions

Vapor lock can stop your trimmer cold in summer heat. Learn how to prevent it and keep your lawn looking sharp…

Straight shaft vs curved shaft trimmers: What’s the difference?

Straight shaft vs curved shaft trimmers: What’s the difference?

Trying to decide between a straight shaft and curved shaft trimmer? This guide compares both designs to help you underst…

Can you cut grass with a weed whacker?

Can you cut grass with a weed whacker?

Wondering if your weed whacker can pick up the slack for your broken lawn mower? You're not alone. In this guide, we bre…

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