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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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Browse Parts for UT20784 Line Trimmers

  • Washer - Fla for Homelite UT20784 - Part 678013001

    Shaft/spool/string/grass deflector diagram

    Washer

    Part #UP04251

    Replaced by #678013001

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    Manufacturer substitution
    This part replaces UP04251. Substitute parts can look different from the original.
    In Stock
    $25.57
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    Qty
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  • Complete Str for Homelite UT20784 - Part 000998265

    Head String

    Part #DA04591A

    Replaced by #000998265

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    Manufacturer substitution
    This part replaces DA04591A. Substitute parts can look different from the original.
    In Stock
    $105.76
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  • Baffle (pkg) for Homelite UT20784 - Part PS00326

    Air Baffle

    Part #UP03013

    Replaced by #PS00326

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    Manufacturer substitution
    This part replaces UP03013. 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 UT20784 - 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 UT20784 - Part 00422

    Shaft/spool/string/grass deflector diagram

    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
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  • String Head for Homelite UT20784 - 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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    Qty
    Plus Item
  • Electrical L for Homelite UT20784 - Part A06963

    Lead

    Part #UP04536

    Replaced by #A06963

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    Manufacturer substitution
    This part replaces UP04536. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.29
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    Qty
    Plus Item
  • Shoulder Str for Homelite UT20784 - Part 308487001

    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
    Minus Item
    Qty
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  • Screw (st-15 for Homelite UT20784 - Part 82538

    Screw

    Part #UP03406

    Replaced by #82538

    Info Icon
    Manufacturer substitution
    This part replaces UP03406. Substitute parts can look different from the original.
    In Stock
    $25.57
    Minus Item
    Qty
    Plus Item
  • Starter Grip for Homelite UT20784 - 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

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…

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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…

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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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