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Homelite UT20773 trimmer/brushcutter Parts

Here are the diagrams and repair parts for Homelite UT20773 trimmer/brushcutter, as well as links to manuals and error code tables, if available.

Homelite UT20773 trimmer/brushcutter
By Schematic
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Browse Parts for UT20773 Line Trimmers

  • Washer for Homelite UT20773 - Part 638090001

    Washer

    Part #UP04275

    Replaced by #638090001

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    Manufacturer substitution
    This part replaces UP04275. Substitute parts can look different from the original.
    In Stock
    $25.57
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  • String Head for Homelite UT20773 - Part UP04650A

    Shaft/spool/string/grass deflector diagram

    Head String

    Part #DA03174A

    Replaced by #UP04650A

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    Manufacturer substitution
    This part replaces DA03174A. Substitute parts can look different from the original.
    In Stock
    $25.73
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  • Housing,rear for Homelite UT20773 - Part 984633001

    Svc Rear H

    Part #UP02964

    Replaced by #984633001

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    Manufacturer substitution
    This part replaces UP02964. Substitute parts can look different from the original.
    In Stock
    $10.37
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  • Trigger With for Homelite UT20773 - Part UP03207A

    Trigger

    Part #UP03207

    Replaced by #UP03207A

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    Manufacturer substitution
    This part replaces UP03207. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $3.74
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  • Starter Rope for Homelite UT20773 - Part 900849002

    Rope

    Part #UP03912

    Replaced by #900849002

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    Manufacturer substitution
    This part replaces UP03912. Substitute parts can look different from the original.
    In Stock
    $25.57
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  • Screw,cap He for Homelite UT20773 - Part 80295

    Screw

    Part #UP06523

    Replaced by #80295

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    Manufacturer substitution
    This part replaces UP06523. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $3.34
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  • Adapter Shaf for Homelite UT20773 - Part 04355

    Shaft/spool/string/grass deflector diagram

    Shaft

    Part #UP04128

    Replaced by #04355

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    Manufacturer substitution
    This part replaces UP04128. Substitute parts can look different from the original.
    In Stock
    $13.77
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  • Air Filter A for Homelite UT20773 - Part UP04741A

    Muffler/air cleaner diagram

    Filter Assembly

    Part #UP04741

    Replaced by #UP04741A

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    Manufacturer substitution
    This part replaces UP04741. Substitute parts can look different from the original.
    In Stock
    $14.06
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  • Screw for Homelite UT20773 - Part 660675001

    Form Screw

    Part #UP03898

    Replaced by #660675001

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    Manufacturer substitution
    This part replaces UP03898. Substitute parts can look different from the original.
    In Stock
    $25.57
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  • Cylinder Kit for Homelite UT20773 - Part UP07145A

    Engine internal diagram

    Cylinder Kit

    Part #UP04136

    Replaced by #UP07145A

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    Manufacturer substitution
    This part replaces UP04136. Substitute parts can look different from the original.
    In Stock
    $36.42
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Most common symptoms to help you fix your line trimmers

Choose a symptom to see related grass line trimmer repairs.

View all

Why won't my gas line trimmer start?

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

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Why does my gas line trimmer leak gas?

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

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Why does my gas line trimmer run rough?

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

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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.

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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…

Read more

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 …

Read more

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…

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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.

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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…

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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…

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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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