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Homelite UT20779 string trimmer/brushcutter Parts

Here are the diagrams and repair parts for Homelite UT20779 string trimmer/brushcutter, as well as links to manuals and error code tables, if available.

Homelite UT20779 string trimmer/brushcutter
By Schematic
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Browse Parts forUT20779 Line Trimmers

  • Wing Nut for Homelite UT20779 - Part PS02453

    Shaft/spool/string/grass deflector diagram

    Wing Nut

    Part #UP04893

    Replaced by #PS02453

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    Manufacturer substitution
    This part replaces UP04893. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
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    Qty
    Plus Item
  • Spring & Con for Homelite UT20779 - Part 638033001

    Spring

    Part #UP03917

    Replaced by #638033001

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    Manufacturer substitution
    This part replaces UP03917. Substitute parts can look different from the original.
    In Stock
    $28.22
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  • Cupped Washe for Homelite UT20779 - Part 04409

    Shaft/spool/string/grass deflector diagram

    Washer

    Part #UP04129

    Replaced by #04409

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    Manufacturer substitution
    This part replaces UP04129. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.74
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  • Bolt,hex Hd. for Homelite UT20779 - Part 82278

    Hex Head B

    Part #UP04154

    Replaced by #82278

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    Manufacturer substitution
    This part replaces UP04154. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
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    Qty
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  • Clamp,wire for Homelite UT20779 - Part 690765001

    Carburetor/fuel tank diagram

    Clamp Spring

    Part #UP03913

    Replaced by #690765001

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    Manufacturer substitution
    This part replaces UP03913. Substitute parts can look different from the original.
    In Stock
    $25.57
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  • Short Block for Homelite UT20779 - Part 984561001

    Short Block

    Part #UP02995

    Replaced by #984561001

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    Manufacturer substitution
    This part replaces UP02995. Substitute parts can look different from the original.
    In Stock
    $91.49
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  • Handle Bar C for Homelite UT20779 - Part 00422

    Clamp

    Part #UP04105

    Replaced by #00422

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    Manufacturer substitution
    This part replaces UP04105. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
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    Qty
    Plus Item
  • Spring Compr for Homelite UT20779 - Part 06713

    Compression

    Part #B06713

    Replaced by #06713

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    Manufacturer substitution
    This part replaces B06713. Substitute parts can look different from the original.
    In Stock
    $25.57
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  • Starter Grip for Homelite UT20779 - Part PS01200

    Start Grip

    Part #UP03026

    Replaced by #PS01200

    Info Icon
    Manufacturer substitution
    This part replaces UP03026. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
    Minus Item
    Qty
    Plus Item
  • String Head for Homelite UT20779 - Part UP04650A

    Shaft/spool/string/grass deflector diagram

    Head String

    Part #DA03174A

    Replaced by #UP04650A

    Info Icon
    Manufacturer substitution
    This part replaces DA03174A. Substitute parts can look different from the original.
    In Stock
    $25.73
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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 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...

Read more

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...

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

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...

Read more
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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