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Snapper R21400 lawn mower - series 0 & 1

Snapper R21400 lawn mower - series 0 & 1 Parts

Here are the diagrams and repair parts for Snapper R21400 lawn mower - series 0 & 1, as well as links to manuals and error code tables, if available.

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Browse Parts for R21400 Walk-Behind Mowers

  • Capscrew for Snapper R21400 - Part 703866

    Cutting deck/blade/interlock diagram

    Snapper Hhcs, 3/8f X

    Part #7090483

    Replaced by #703866

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    Manufacturer substitution
    This part replaces 7090483. Substitute parts can look different from the original.
    In Stock
    $8.26
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  • Nut,hex, for Snapper R21400 - Part 704279

    Drive system self-propelled diagram

    Snapper Hfln, 5/16f

    Part #7090480

    Replaced by #704279

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    Manufacturer substitution
    This part replaces 7090480. Substitute parts can look different from the original.
    In Stock
    $29.68
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  • Bushing for Snapper R21400 - Part 7014343YP

    Snapper Bushing

    Part #7014343

    Replaced by #7014343YP

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    Manufacturer substitution
    This part replaces 7014343. Substitute parts can look different from the original.
    In Stock
    $7.60
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  • Grip for Snapper R21400 - Part 7014307YP

    Snapper Grip

    Part #7014307

    Replaced by #7014307YP

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    Manufacturer substitution
    This part replaces 7014307. Substitute parts can look different from the original.
    In Stock
    $30.79
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  • Nut for Snapper R21400 - Part 703947

    Snapper T-nut, 5/16c

    Part #7090895

    Replaced by #703947

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    Manufacturer substitution
    This part replaces 7090895. Substitute parts can look different from the original.
    In Stock
    $30.21
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  • Spring,ext for Snapper R21400 - Part 7029025YP

    Snapper Spring

    Part #7029025

    Replaced by #7029025YP

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    Manufacturer substitution
    This part replaces 7029025. Substitute parts can look different from the original.
    In Stock
    $33.48
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  • Bolt for Snapper R21400 - Part 5025145X6SM

    Drive system self-propelled diagram

    Snapper Rhsnb, 5/16c

    Part #7090316

    Replaced by #5025145X6SM

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    Manufacturer substitution
    This part replaces 7090316. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.11
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  • Shim for Snapper R21400 - Part 7010121YP

    Drive system self-propelled diagram

    Snapper Washer

    Part #7010121

    Replaced by #7010121YP

    Info Icon
    Manufacturer substitution
    This part replaces 7010121. Substitute parts can look different from the original.
    In Stock
    $30.79
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  • Rod Asmy Co for Snapper R21400 - Part 7029217YP

    Snapper Rod Assy, Co

    Part #7029217

    Replaced by #7029217YP

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    Manufacturer substitution
    This part replaces 7029217. Substitute parts can look different from the original.
    In Stock
    $210.75
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  • Nut for Snapper R21400 - Part 7091511SM

    Snapper Hn, 5/16c Gr

    Part #7091511

    Replaced by #7091511SM

    Info Icon
    Manufacturer substitution
    This part replaces 7091511. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $6.63
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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…

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.…

Read more

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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