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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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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  |
Spring- To 01258100
#31

Deck diagram

Spring- to

Part #01258100

$20.54
In Stock
Harness 03263001
#15

Electrical diagram

Harness

Part #03263001

$109.58
In Stock
Craftsman Bolt 06224100
Craftsman bolt

Part #06224100

This item is not returnable
$2.16
In Stock
Lawn Mower Battery Cover 04912900
#2

Electrical diagram

Lawn mower battery cover

Part #04912900

$13.73
In Stock
Washer 06439100
#16

Transmission diagram

Washer

Part #06439100

This item is not returnable
$2.16
In Stock
Craftsman @blt-hex .31 05957400
#27

Engine/clutch/idler diagram

Craftsman @blt-hex .31

Part #05957400

This item is not returnable
$2.16
In Stock
Sump Gear 01255251
#4

Transmission diagram

Sump gear

Part #01255251

$73.00
In Stock
Sg-tors 08300014
#11

Controls diagram

Sg-tors

Part #08300014

This item is not returnable
$2.31
In Stock
Clip-hoc F 03265100
#11

Frame/front caster diagram

Clip-hoc f

Part #03265100

This item is not returnable
$7.17
In Stock
Lawn & Garden Equipment Bolt 06224400
#14

Handlebars diagram

Lawn & garden equipment bolt

Part #06224400

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 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.…

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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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