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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.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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 199 parts  |
Nut-jam .31- 06536700
#12

Electrical diagram

Nut-jam .31-

Part #06536700

This item is not returnable
$2.16
In Stock
Bolt 05962900
#23

Deck diagram

Bolt

Part #05962900

This item is not returnable
$3.22
In Stock
Hex Bolt 05957200
#10

Transmission diagram

Hex bolt

Part #05957200

This item is not returnable
$2.16
In Stock
Push Nut 02215300
#14

Controls diagram

Push nut

Part #02215300

This item is not returnable
$3.89
In Stock
Washer 06436800
#15

Handlebars diagram

Washer

Part #06436800

$8.26
In Stock
Craftsman Bolt 06216100
#10

Engine/clutch/idler diagram

Craftsman bolt

Part #06216100

This item is not returnable
$2.16
In Stock
Ariens Chassis- W 01246659
#1

Frame/front caster diagram

Ariens chassis- w

Part #01246659

$413.92
In Stock
Lawn & Garden Equipment Lock Washer 06307300
#14

Deck diagram

Lawn & garden equipment lock washer

Part #06307300

This item is not returnable
$4.00
In Stock
Kit- Waw P 51113200
#1

Brake diagram

Kit- waw p

Part #51113200

$179.38
In Stock
Sump Gear 01255251
#4

Transmission diagram

Sump gear

Part #01255251

$73.00
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 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 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 cut unevenly?

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

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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 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 vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up...

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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....

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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

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

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked 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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