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Homelite UT20777 string trimmer/brushcutter

Homelite UT20777 string trimmer/brushcutter Parts

Here are the diagrams and repair parts for Homelite UT20777 string trimmer/brushcutter, as well as links to manuals and error code tables, if available.

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Browse Parts for UT20777 Line Trimmers

  • Driveshaft H for Homelite UT20777 - Part UP05136A

    Shaft Assembly

    Part #UP05136

    Replaced by #UP05136A

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    Manufacturer substitution
    This part replaces UP05136. Substitute parts can look different from the original.
    In Stock
    $38.51
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  • Starter Grip for Homelite UT20777 - Part PS01200

    Start Grip

    Part #UP03026

    Replaced by #PS01200

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    Manufacturer substitution
    This part replaces UP03026. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
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  • Bolt,hex Hd. for Homelite UT20777 - 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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  • Starter Rope for Homelite UT20777 - 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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  • Clamp,wire for Homelite UT20777 - 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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  • Pan Head Scr for Homelite UT20777 - Part PS01565

    Engine internal diagram

    Bolt

    Part #UP04295

    Replaced by #PS01565

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    Manufacturer substitution
    This part replaces UP04295. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
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  • Short Block for Homelite UT20777 - Part 984525001

    Short Block

    Part #UP02994

    Replaced by #984525001

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    Manufacturer substitution
    This part replaces UP02994. Substitute parts can look different from the original.
    In Stock
    $111.38
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  • Shoulder Str for Homelite UT20777 - Part 308487001

    Shaft/spool/string/grass deflector diagram

    Strap

    Part #UP00108

    Replaced by #308487001

    Info Icon
    Manufacturer substitution
    This part replaces UP00108. Substitute parts can look different from the original.
    In Stock
    $32.48
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  • Starter Comp for Homelite UT20777 - Part UP02962A

    Starter Assembly

    Part #UP02962

    Replaced by #UP02962A

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    Manufacturer substitution
    This part replaces UP02962. Substitute parts can look different from the original.
    In Stock
    $39.89
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    Qty
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  • Wing Nut for Homelite UT20777 - Part PS02453

    Shaft/spool/string/grass deflector diagram

    Wing Nut

    Part #UP04893

    Replaced by #PS02453

    Info Icon
    Manufacturer substitution
    This part replaces UP04893. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
    Minus Item
    Qty
    Plus Item

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…

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…

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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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