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Homelite UT20774 trimmer/brushcutter

Homelite UT20774 trimmer/brushcutter Parts

Here are the diagrams and repair parts for Homelite UT20774 trimmer/brushcutter, as well as links to manuals and error code tables, if available.

By Schematic
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Browse Parts for UT20774 Line Trimmers

  • Hex Head M for Homelite UT20774 - Part UP04159

    Hex Head M

    Part #UP04159

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

  • Fitting for Homelite UT20774 - Part UP03831

    Carburetor/fuel tank diagram

    Fitting

    Part #UP03831

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

  • Truss Hd S for Homelite UT20774 - Part UP04247

    Truss Hd S

    Part #UP04247

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

  • Fuel Cap for Homelite UT20774 - Part UP00106

    Carburetor/fuel tank diagram

    Fuel Cap

    Part #UP00106

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

  • Shaft Assembly for Homelite UT20774 - Part UP00710

    Shaft Assembly

    Part #UP00710

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

  • Gasket for Homelite UT20774 - Part UP03916

    Gasket

    Part #UP03916

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

  • Terminal for Homelite UT20774 - Part UP03868

    Terminal

    Part #UP03868

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

  • Check Lever for Homelite UT20774 - Part UP04740

    Carburetor/fuel tank diagram

    Check Lever

    Part #UP04740

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

  • Handle for Homelite UT20774 - Part UP03114

    Handle

    Part #UP03114

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

  • Gear Head (includes Keys 17,18) for Homelite UT20774 - Part UP04124

    Shaft/spool/string/grass deflector diagram

    Gear Head (includes Keys 17,18)

    Part #UP04124

    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 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
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

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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