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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  |
Sump Gear 01255251
#4

Transmission diagram

Sump gear

Part #01255251

$73.00
In Stock
Rod- Trail 03263700
#3

Frame/front caster diagram

Rod- trail

Part #03263700

$31.05
In Stock
Bolt 06220200
#20

Handlebars diagram

Bolt

Part #06220200

This item is not returnable
$2.16
In Stock
Spacer- Ha 07500005
#9

Handlebars diagram

Spacer- ha

Part #07500005

This item is not returnable
$2.46
In Stock
Nut 06534900
Nut

Part #06534900

This item is not returnable
$3.22
In Stock
Flat Bushing 05500030
#7

Transmission/drive diagram

Flat bushing

Part #05500030

$15.37
In Stock
Spacer- Id 01259000
#7

Transmission diagram

Spacer- id

Part #01259000

$8.00
In Stock
Pulley- Wa 01247500
#27

Transmission diagram

Pulley- wa

Part #01247500

$108.30
In Stock
Lawn & Garden Equipment Bearing 05435800
Lawn & garden equipment bearing

Part #05435800

This item is not returnable
$20.54
In Stock
Ariens Switch Key 03277000
#14

Electrical diagram

Ariens switch key

Part #03277000

$51.67
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 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 cut unevenly?

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

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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 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 stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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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 rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Read more
Repair difficulty
Time required
 15 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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Top questions about Sears and Sears PartsDirect

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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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