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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

  • Snapper Decal for Snapper R21400 - Part 7024446

    Snapper Decal

    Part #7024446

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

  • Snapper Bushing for Snapper R21400 - Part 7012135

    Cutting deck/blade/interlock diagram

    Snapper Bushing

    Part #7012135

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

  • Snapper Engine for Snapper R21400 - Part UNAV1

    Throttle controls/engine specs diagram

    Snapper Engine

    Part #UNAV1

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

  • Snapper Rhsnb, 1/4c for Snapper R21400 - Part 7090798

    Accessory-thatcherizer diagram

    Snapper Rhsnb, 1/4c

    Part #7090798

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

  • Snapper Anti-after Fire for Snapper R21400 - Part UNAV12

    Throttle controls/engine specs diagram

    Snapper Anti-after Fire

    Part #UNAV12

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

  • Snapper Housing for Snapper R21400 - Part 7051908

    Transmission (differential) diagram

    Snapper Housing

    Part #7051908

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

  • Snapper Throttle Ctl for Snapper R21400 - Part 7024136

    Throttle controls/engine specs diagram

    Snapper Throttle Ctl

    Part #7024136

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

  • Snapper Bracket, Front Wheel (odp21400 Model) for Snapper R21400 - Part 704166

    Front wheel bracket diagram

    Snapper Bracket, Front Wheel (odp21400 Model)

    Part #704166

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

  • Snapper Deck Bracket for Snapper R21400 - Part 7033670

    Drive system self-propelled diagram

    Snapper Deck Bracket

    Part #7033670

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

  • Snapper Hhcs, 1/4f X for Snapper R21400 - Part 7091022

    Snapper Hhcs, 1/4f X

    Part #7091022

    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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