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Lawn-Boy 10301-3900001 AND UP lawn mower Parts

Here are the diagrams and repair parts for Lawn-Boy 10301-3900001 AND UP lawn mower, as well as links to manuals and error code tables, if available.

Lawn-Boy 10301-3900001 AND UP lawn mower
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Browse Parts for 10301-3900001 AND UP Walk-Behind Mowers

  • Toro Lawn Mower Washer Clutch for Lawn-Boy 10301-3900001 AND UP - Part 65-4760

    Rear axle assembly diagram

    Washer

    Part #65-4760

    Replaced by #65-4760

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    Manufacturer substitution
    This part replaces 65-4760. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $27.95
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  • Toro Lawn-boy Electric Lead for Lawn-Boy 10301-3900001 AND UP - Part 92-1156

    2 cycle engine assembly diagram

    Electric Lead

    Part #92-1156

    Replaced by #92-1156

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    This part replaces 92-1156. Substitute parts can look different from the original.
    In Stock
    $15.49
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  • Toro Lawn-boy Lawn Mower Screw for Lawn-Boy 10301-3900001 AND UP - Part 95-1726

    2 cycle engine, fuel tank & blade assembly diagram

    Screw Engine

    Part #92-1624

    Replaced by #95-1726

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    Manufacturer substitution
    This part replaces 92-1624. Substitute parts can look different from the original.
    In Stock
    $27.62
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  • Toro Lawn-boy Baffle for Lawn-Boy 10301-3900001 AND UP - Part 93-4343

    2 cycle engine assembly diagram

    Baffle

    Part #614681

    Replaced by #93-4343

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    Manufacturer substitution
    This part replaces 614681. Substitute parts can look different from the original.
    In Stock
    $50.28
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  • Toro Lawn Mower Gear Pinion for Lawn-Boy 10301-3900001 AND UP - Part 65-4750

    Rear axle assembly diagram

    Gear

    Part #65-4750

    Replaced by #65-4750

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    This part replaces 65-4750. Substitute parts can look different from the original.
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    $43.42
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  • Toro Gasket for Lawn-Boy 10301-3900001 AND UP - Part 683778

    #NI

    All parts diagram

    Gasket Kit

    Part #683778

    Replaced by #683778

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    Manufacturer substitution
    This part replaces 683778. Substitute parts can look different from the original.
    In Stock
    $16.46
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  • Toro Thrust Washer for Lawn-Boy 10301-3900001 AND UP - Part 36-4791

    Gear case assembly diagram

    Thrust Washer

    Part #36-4791

    Replaced by #36-4791

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    This part replaces 36-4791. Substitute parts can look different from the original.
    In Stock
    $28.59
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  • Toro Lock Nut for Lawn-Boy 10301-3900001 AND UP - Part 602315

    Rear axle assembly diagram

    Lock Nut

    Part #602315

    Replaced by #602315

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    Manufacturer substitution
    This part replaces 602315. Substitute parts can look different from the original.
    In Stock
    $33.10
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  • Toro Lead for Lawn-Boy 10301-3900001 AND UP - Part 681678

    2 cycle engine assembly diagram

    Lead

    Part #681678

    Replaced by #681678

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    Manufacturer substitution
    This part replaces 681678. Substitute parts can look different from the original.
    In Stock
    $67.47
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  • Toro Shield Carburetor for Lawn-Boy 10301-3900001 AND UP - Part 613143

    2 cycle engine assembly diagram

    Shield Carburetor

    Part #613143

    Replaced by #613143

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    Manufacturer substitution
    This part replaces 613143. Substitute parts can look different from the original.
    In Stock
    $46.00
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Most common symptoms to help you fix your walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

View all

Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to replace a lawn mower front deck tray

How to replace a lawn mower front deck tray

Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…

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Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

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Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

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Repair time and Difficulty

 45 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

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Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

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