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Lawn-Boy L21ZPNC lawn mower

Lawn-Boy L21ZPNC lawn mower Parts

Here are the diagrams and repair parts for Lawn-Boy L21ZPNC lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for L21ZPNC Walk-Behind Mowers

  • Toro Element Kit for Lawn-Boy L21ZPNC - Part 107-4621

    Carburetor group diagram

    Element

    Part #609493

    Replaced by #107-4621

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    Manufacturer substitution
    This part replaces 609493. Substitute parts can look different from the original.
    In Stock
    $33.52
    Minus Item
    Qty
    Plus Item
  • Toro Flywheel for Lawn-Boy L21ZPNC - Part 683580

    Engine group diagram

    Flywheel

    Part #683580

    Replaced by #683580

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    Manufacturer substitution
    This part replaces 683580. Substitute parts can look different from the original.
    In Stock
    $436.06
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  • Toro Spacer for Lawn-Boy L21ZPNC - Part 612503

    Carburetor group diagram

    Spacer

    Part #612503

    Replaced by #612503

    Info Icon
    Manufacturer substitution
    This part replaces 612503. Substitute parts can look different from the original.
    In Stock
    $30.53
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  • Toro Terminal Cover for Lawn-Boy L21ZPNC - Part 684698

    Engine group diagram

    Terminal Spring

    Part #510231

    Replaced by #684698

    Info Icon
    Manufacturer substitution
    This part replaces 510231. Substitute parts can look different from the original.
    In Stock
    $36.96
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    Qty
    Plus Item
  • Toro Spring for Lawn-Boy L21ZPNC - Part 608498

    Housing and shroud group diagram

    Spring

    Part #608498

    Replaced by #608498

    Info Icon
    Manufacturer substitution
    This part replaces 608498. Substitute parts can look different from the original.
    In Stock
    $105.27
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    Qty
    Plus Item
  • Toro Seal for Lawn-Boy L21ZPNC - Part 611396

    Seal

    Part #611396

    Replaced by #611396

    Info Icon
    Manufacturer substitution
    This part replaces 611396. Substitute parts can look different from the original.
    In Stock
    $37.61
    Minus Item
    Qty
    Plus Item
  • Toro Screw for Lawn-Boy L21ZPNC - Part 605522

    Carburetor group diagram

    Screw

    Part #605522

    Replaced by #605522

    Info Icon
    Manufacturer substitution
    This part replaces 605522. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.20
    Minus Item
    Qty
    Plus Item
  • Toro Wing Nut for Lawn-Boy L21ZPNC - Part 145577

    Handle group diagram

    Wing Nut

    Part #145577

    Replaced by #145577

    Info Icon
    Manufacturer substitution
    This part replaces 145577. Substitute parts can look different from the original.
    In Stock
    $27.62
    Minus Item
    Qty
    Plus Item
  • Toro Liner for Lawn-Boy L21ZPNC - 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
    Minus Item
    Qty
    Plus Item
  • Toro Bolt for Lawn-Boy L21ZPNC - Part 610646

    Housing and shroud group diagram

    Bolt

    Part #610646

    Replaced by #610646

    Info Icon
    Manufacturer substitution
    This part replaces 610646. Substitute parts can look different from the original.
    In Stock
    $37.41
    Minus Item
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    Plus Item

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…

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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…

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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