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Ariens
Gas Walk-Behind Mower

Model # 91140300 (2000-999999) Official Ariens lawn mower

Here are the diagrams and repair parts for Official Ariens 91140300-2000-999999 lawn mower, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 197 parts  |
@blt-hex .38 05959400
#15

Frame/front caster diagram

@blt-hex .38

Part #05959400

This item is not returnable
$3.22
In Stock
Bolt 05962900
#23

Deck diagram

Bolt

Part #05962900

This item is not returnable
$3.22
In Stock
Craftsman Lawn Mower J Clamp 06909400
#17

Handlebars diagram

Craftsman lawn mower j clamp

Part #06909400

$7.63
In Stock
Arm- Waw D 01248251
#17

Deck diagram

Arm- waw d

Part #01248251

$43.27
In Stock
Gasket- Tr 01256400
#5

Transmission diagram

Gasket- tr

Part #01256400

$27.31
In Stock
Lock Nut 06543500
Lock nut

Part #06543500

This item is not returnable
$2.16
In Stock
Bushing 00275100
#5

Transmission/drive diagram

Bushing

Part #00275100

$25.69
In Stock
Tire Assembly 07100730
#2

Wheels diagram

Tire assembly

Part #07100730

$174.10
In Stock
Lock Nut 06543600
Lock nut

Part #06543600

This item is not returnable
$2.16
In Stock
Craftsman Nut-lk Flg G 06534800
#24

Deck diagram

Craftsman nut-lk flg g

Part #06534800

This item is not returnable
$2.16
In Stock

Symptoms for gas 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 does my lawn mower cut unevenly?

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

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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 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 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 spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

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Repair difficulty
Time required
 15 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 difficulty
Time required
 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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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

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