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Lawn-Boy 4502 lawn mower Parts

Here are the diagrams and repair parts for Lawn-Boy 4502 lawn mower, as well as links to manuals and error code tables, if available.

Lawn-Boy 4502 lawn mower
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Browse Parts for 4502 Walk-Behind Mowers

  • Toro Lawn Mower Screw for Lawn-Boy 4502 - Part 608850

    Engine group diagram

    Screw

    Part #608850

    Replaced by #608850

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    Manufacturer substitution
    This part replaces 608850. Substitute parts can look different from the original.
    In Stock
    $28.59
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  • Toro Air Vane for Lawn-Boy 4502 - Part 610831

    Engine group diagram

    Air Vane Shaft

    Part #610831

    Replaced by #610831

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    Manufacturer substitution
    This part replaces 610831. Substitute parts can look different from the original.
    In Stock
    $56.74
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  • Toro Key for Lawn-Boy 4502 - Part 607199

    Engine group diagram

    Key

    Part #607199

    Replaced by #607199

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    Manufacturer substitution
    This part replaces 607199. Substitute parts can look different from the original.
    In Stock
    $11.03
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  • Toro Lock Nut for Lawn-Boy 4502 - Part 602315

    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 Plug for Lawn-Boy 4502 - Part 602926

    Drive group diagram

    Grease Plug

    Part #602926

    Replaced by #602926

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    Manufacturer substitution
    This part replaces 602926. Substitute parts can look different from the original.
    In Stock
    $24.03
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  • Toro Terminal Cover for Lawn-Boy 4502 - Part 684698

    Engine group diagram

    Terminal Spring

    Part #510231

    Replaced by #684698

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    Manufacturer substitution
    This part replaces 510231. Substitute parts can look different from the original.
    In Stock
    $36.96
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  • Toro Lawn Mower Blade for Lawn-Boy 4502 - Part 521725

    Blade 20"

    Part #521725

    Replaced by #521725

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    Manufacturer substitution
    This part replaces 521725. Substitute parts can look different from the original.
    Get free shipping with Automatic Reorder
    In Stock
    $232.18
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  • Toro Wrist Pin for Lawn-Boy 4502 - Part 94-5774

    Engine group diagram

    Wrist Pin

    Part #606608

    Replaced by #94-5774

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    Manufacturer substitution
    This part replaces 606608. Substitute parts can look different from the original.
    In Stock
    $46.00
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  • Toro Lawn-boy Upper Main B for Lawn-Boy 4502 - Part 681830

    Engine group diagram

    Upper Main B

    Part #681830

    Replaced by #681830

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    Manufacturer substitution
    This part replaces 681830. Substitute parts can look different from the original.
    In Stock
    $111.96
    Minus Item
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  • Toro Liner for Lawn-Boy 4502 - Part 677982

    Engine group diagram

    Liner

    Part #677982

    Replaced by #677982

    Info Icon
    Manufacturer substitution
    This part replaces 677982. Substitute parts can look different from the original.
    In Stock
    $119.70
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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.

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Why does my lawn mower vibrate a lot?

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

Read more

Why does my lawn mower stall?

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

Read more

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…

Read more

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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Is it time to switch to an electric lawn mower?

Is it time to switch to an electric lawn mower?

See a comparison of cordless lawn mowers and gas mowers so you can decide which is best for you.…

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Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

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