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Snapper P21400 lawn mower - series 0 & 1 Parts

Here are the diagrams and repair parts for Snapper P21400 lawn mower - series 0 & 1, as well as links to manuals and error code tables, if available.

Snapper P21400 lawn mower - series 0 & 1
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Browse Parts for P21400 Walk-Behind Mowers

  • Nut for Snapper P21400 - Part 703251

    Snapper Hcln, 1/4c G

    Part #7090372

    Replaced by #703251

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    Manufacturer substitution
    This part replaces 7090372. Substitute parts can look different from the original.
    In Stock
    $9.54
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  • Washer for Snapper P21400 - Part 703963

    Cutting deck/blade/interlock diagram

    Snapper Cone Washer

    Part #7012063

    Replaced by #703963

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    Manufacturer substitution
    This part replaces 7012063. Substitute parts can look different from the original.
    In Stock
    $13.23
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  • Spring,tine, for Snapper P21400 - Part 7018496YP

    Accessory-thatcherizer diagram

    Snapper Spring

    Part #7018496

    Replaced by #7018496YP

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    Manufacturer substitution
    This part replaces 7018496. Substitute parts can look different from the original.
    In Stock
    $54.59
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  • Pin for Snapper P21400 - Part 703312

    Drive system self-propelled diagram

    Snapper Cotter Pin

    Part #7091597

    Replaced by #703312

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    Manufacturer substitution
    This part replaces 7091597. Substitute parts can look different from the original.
    In Stock
    $7.60
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  • Half,hldr for Snapper P21400 - Part 7031809YP

    Drive system self-propelled diagram

    Snapper Half Holder

    Part #7031809

    Replaced by #7031809YP

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    Manufacturer substitution
    This part replaces 7031809. Substitute parts can look different from the original.
    In Stock
    $30.79
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  • Nut,hex for Snapper P21400 - Part 703459

    Transmission (differential) diagram

    Snapper Hln, 5/16f G

    Part #7092062

    Replaced by #703459

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    Manufacturer substitution
    This part replaces 7092062. Substitute parts can look different from the original.
    In Stock
    $29.68
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  • Lockwasher for Snapper P21400 - Part 7090509YP

    Drive system self-propelled diagram

    Snapper Itlw, 1/2 Bz

    Part #7090509

    Replaced by #7090509YP

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    Manufacturer substitution
    This part replaces 7090509. Substitute parts can look different from the original.
    In Stock
    $30.95
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  • Plug for Snapper P21400 - Part 703931

    Snapper Plug

    Part #7016544

    Replaced by #703931

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    Manufacturer substitution
    This part replaces 7016544. Substitute parts can look different from the original.
    In Stock
    $30.44
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  • Deck,mwr,21 for Snapper P21400 - Part 7600034DYP

    Cutting deck/blade/interlock diagram

    Snapper 21 M-air Se

    Part #7058540

    Replaced by #7600034DYP

    Info Icon
    Manufacturer substitution
    This part replaces 7058540. Substitute parts can look different from the original.
    In Stock
    $457.90
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  • Bolt for Snapper P21400 - Part 703447

    Snapper Rhssnb, 5/16

    Part #7090799

    Replaced by #703447

    Info Icon
    Manufacturer substitution
    This part replaces 7090799. Substitute parts can look different from the original.
    In Stock
    $30.79
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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 run rough?

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

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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 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 cut unevenly?

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

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…

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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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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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