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Cub Cadet 12B-999I100 gas lawn mower

Cub Cadet 12B-999I100 gas lawn mower Parts

Here are the diagrams and repair parts for Cub Cadet 12B-999I100 gas lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for 12B-999I100 Walk-Behind Mowers

  • Foam Grip - for Cub Cadet 12B-999I100 - Part 720-0294A

    Handle/bag/cover diagram

    Grip

    Part #720-0294

    Replaced by #720-0294A

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    Manufacturer substitution
    This part replaces 720-0294. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $13.46
    Minus Item
    Qty
    Plus Item
  • Lawn Mower Deck Baffle for Cub Cadet 12B-999I100 - Part 731-08190A

    Deck/chute diagram

    Lawn Mower Deck Baffle

    Part #731-1828

    Replaced by #731-08190A

    Info Icon
    Manufacturer substitution
    This part replaces 731-1828. Substitute parts can look different from the original.
    In Stock
    $53.60
    10% OFF Phone Price : $59.60Info Icon
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    Qty
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  • Kmart Lawn Tractor Grease Fitting for Cub Cadet 12B-999I100 - Part 937-3000

    Deck/chute diagram

    Grease Fitting

    Part #737-3000

    Replaced by #937-3000

    Info Icon
    Manufacturer substitution
    This part replaces 737-3000. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.54
    12% OFF Phone Price : $8.54Info Icon
    Minus Item
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  • Lawn Mower Mulching Door for Cub Cadet 12B-999I100 - Part 931-1833A

    Deck/chute diagram

    Mulch Cover

    Part #731-1833

    Replaced by #931-1833A

    Info Icon
    Manufacturer substitution
    This part replaces 731-1833. Substitute parts can look different from the original.
    In Stock
    $40.87
    36% OFF Was : $63.50Info Icon
    Minus Item
    Qty
    Plus Item
  • Lawn Mower Handle, Upper for Cub Cadet 12B-999I100 - Part 749-0439E-0637

    Handle/bag/cover diagram

    Handle

    Part #749-0439C

    Replaced by #749-0439E-0637

    Info Icon
    Manufacturer substitution
    This part replaces 749-0439C. Substitute parts can look different from the original.
    In Stock
    $65.56
    8% OFF Phone Price : $71.56Info Icon
    Minus Item
    Qty
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  • Troybilt Truss Mach for Cub Cadet 12B-999I100 - Part 710-1220

    Deck/chute diagram

    Troybilt Truss Mach

    Part #710-1220
    This item is not returnable
    In Stock
    $8.31
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  • Mtd Push Cap for Cub Cadet 12B-999I100 - Part 726-0106

    Handle/bag/cover diagram

    Mtd Push Cap

    Part #726-0106
    In Stock
    $30.01
    Minus Item
    Qty
    Plus Item
  • Mtd Lawn & Garden Equipment Plastic Plug for Cub Cadet 12B-999I100 - Part 721-0325

    Transmission assembly diagram

    Mtd Lawn & Garden Equipment Plastic Plug

    Part #721-0325
    This item is not returnable
    In Stock
    $8.00
    11% OFF Phone Price : $9.00Info Icon
    Minus Item
    Qty
    Plus Item
  • Lawn Mower Pawl Plate for Cub Cadet 12B-999I100 - Part 16855

    Deck/chute diagram

    Lawn Mower Pawl Plate

    Part #16855
    This item is not returnable
    In Stock
    $9.45
    10% OFF Phone Price : $10.45Info Icon
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    Qty
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  • Torsion Spring for Cub Cadet 12B-999I100 - Part 732-0832

    Deck/chute diagram

    Torsion Spring

    Part #732-0832
    This item is not returnable
    In Stock
    $27.29
    Minus Item
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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…

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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

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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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