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Ariens
Gas Walk-Behind Mower

Model # 91140300 (101-1999) Official Ariens lawn mower

Here are the diagrams and repair parts for Official Ariens 91140300-101-1999 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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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 199 parts  |
Lawn Mower Lock Washer 06309300
#30

Engine/clutch/idler diagram

Lawn mower lock washer

Part #06309300

This item is not returnable
$5.83
In Stock
Flat Bushing 05500030
#7

Transmission/drive diagram

Flat bushing

Part #05500030

$15.37
In Stock
Bolt 05962900
#23

Deck diagram

Bolt

Part #05962900

This item is not returnable
$3.22
In Stock
Spacer- 1. 05500827
Spacer- 1.

Part #05500827

$27.31
In Stock
Hex Bolt 05957200
#10

Transmission diagram

Hex bolt

Part #05957200

This item is not returnable
$2.16
In Stock
Nut-jam-ny 06530900
#8

Controls diagram

Nut-jam-ny

Part #06530900

This item is not returnable
$2.16
In Stock
Lawn & Garden Equipment Bearing 05435800
Lawn & garden equipment bearing

Part #05435800

This item is not returnable
$20.54
In Stock
Control 06900329
#16

Controls diagram

Control

Part #06900329

$70.16
In Stock
Pulley- Wa 01247500
#27

Transmission diagram

Pulley- wa

Part #01247500

$108.30
In Stock
Spacer- Ha 05500040
#5

Controls diagram

Spacer- ha

Part #05500040

$8.00
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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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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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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