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Lawn-Boy 10201-3900001 AND UP lawn mower Parts

Here are the diagrams and repair parts for Lawn-Boy 10201-3900001 AND UP lawn mower, as well as links to manuals and error code tables, if available.

Lawn-Boy 10201-3900001 AND UP lawn mower
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Browse Parts for 10201-3900001 AND UP Walk-Behind Mowers

  • Toro Bushing-output for Lawn-Boy 10201-3900001 AND UP - Part 60-8850

    Gear case assembly diagram

    Bushing

    Part #60-8850

    Replaced by #60-8850

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    Manufacturer substitution
    This part replaces 60-8850. Substitute parts can look different from the original.
    In Stock
    $38.89
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  • Toro Lawn-boy Spring Arm for Lawn-Boy 10201-3900001 AND UP - Part 92-1005

    Deck & wheel assembly (hand push) diagram

    Spring Arm

    Part #92-1005

    Replaced by #92-1005

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    Manufacturer substitution
    This part replaces 92-1005. Substitute parts can look different from the original.
    In Stock
    $36.24
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  • Toro Bowl for Lawn-Boy 10201-3900001 AND UP - Part 683782

    #NI

    All parts diagram

    Bowl Kit

    Part #683782

    Replaced by #683782

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    Manufacturer substitution
    This part replaces 683782. Substitute parts can look different from the original.
    In Stock
    $144.86
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  • Toro Lawn Mower Washer for Lawn-Boy 10201-3900001 AND UP - Part 308052

    2 cycle engine assembly diagram

    Washer

    Part #308052

    Replaced by #308052

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    Manufacturer substitution
    This part replaces 308052. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $31.81
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  • Toro Screw for Lawn-Boy 10201-3900001 AND UP - Part 605522

    2 cycle engine assembly diagram

    Screw

    Part #605522

    Replaced by #605522

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    Manufacturer substitution
    This part replaces 605522. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.20
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  • Toro Lawn Mower Thrust Washer for Lawn-Boy 10201-3900001 AND UP - Part 65-4740

    Rear axle assembly diagram

    Washer

    Part #65-4740

    Replaced by #65-4740

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    Manufacturer substitution
    This part replaces 65-4740. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $28.17
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  • Toro Lawn-boy Lawn Mower Wheel for Lawn-Boy 10201-3900001 AND UP - Part 684777

    Deck & wheel assembly (hand push) diagram

    Wheel Tire

    Part #684777

    Replaced by #684777

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    Manufacturer substitution
    This part replaces 684777. Substitute parts can look different from the original.
    In Stock
    $139.06
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  • Decal for Lawn-Boy 10201-3900001 AND UP - Part 92-4981

    Decal

    Part #92-4981

    The manufacturer no longer makes this part, and there's no substitute part

  • Discharge Decal for Lawn-Boy 10201-3900001 AND UP - Part 92-1097

    Discharge Decal

    Part #92-1097

    The manufacturer no longer makes this part, and there's no substitute part

  • Handle for Lawn-Boy 10201-3900001 AND UP - Part 614643

    Handle assembly diagram

    Handle

    Part #614643

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your walk-behind mowers

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

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

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

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

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

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

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

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.

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.…

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.…

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…

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.

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…

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…

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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