Ariens
Gas Walk-Behind Mower

Model # 91127100 (101-999999) Official Ariens lawn mower

Here are the diagrams and repair parts for Official Ariens 91127100-101-999999 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 135 parts  |

Lock Washer 06308000
#9

Mower deck/bagger diagram

Lock washer

Part #06308000

This item is not returnable
In Stock
Hex Bolt 05947400
#14

Handlebar/controls diagram

Hex bolt

Part #05947400

This item is not returnable
In Stock
Ariens Spring- .1 08300016
#25

Transmission/height of cut diagram

Ariens spring- .1

Part #08300016

This item is not returnable
In Stock
Lawn & Garden Equipment Lock Nut 06545400
#19

Handlebar/controls diagram

Lawn & garden equipment lock nut

Part #06545400

This item is not returnable
In Stock
Ariens Hex Bolt 05901424
#3

Wheels diagram

Ariens hex bolt

Part #05901424

In Stock
Ariens Hand Strap 00612751
#22

Handlebar/controls diagram

Ariens hand strap

Part #00612751

In Stock
Craftsman Bolt 06220600
Craftsman bolt

Part #06220600

This item is not returnable
In Stock
Ariens Brkt- Dish 04142759
#4

Mower deck/bagger diagram

Ariens brkt- dish

Part #04142759

In Stock
Ariens Weldment, Commercial 21 Bumper 03983459
#19

Mower deck/bagger diagram

Ariens weldment, commercial 21 bumper

Part #03983459

In Stock
Ariens Wldmt- Tra 03997951
#3

Handlebar/controls diagram

Ariens wldmt- tra

Part #03997951

In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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

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

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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.

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…

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. …

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…

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.

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.…

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.…

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.…