Rear-Engine Riding Mower

Model # 99231200 (101-999) Official Ariens riding lawn mower

Here are the diagrams and repair parts for Official Ariens 99231200 (101-999) riding lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for
99231200 (101-999) Riding Mowers & Tractors
Linkage- B 09268400
#25

Brakes diagram

Linkage- b

Part #09268400

In Stock
Decal 69229100
#4

Decals diagram

Decal

Part #69229100

In Stock
Lawn Tractor Hex Nut 06529400
#6

Brakes diagram

Lawn tractor hex nut

Part #06529400

This item is not returnable
In Stock
Craftsman Machine Screw 06116900
#24

Electrical system diagram

Craftsman machine screw

Part #06116900

This item is not returnable
In Stock
Ariens Pin-ctr .1 06712300
#21

Motors/wheels diagram

Ariens pin-ctr .1

Part #06712300

This item is not returnable
In Stock
Ariens Idler Flange 07327500
#20

Transmission diagram

Ariens idler flange

Part #07327500

In Stock
Lawn Tractor Lock Nut 06537200
#30

Steering controls diagram

Lawn tractor lock nut

Part #06537200

This item is not returnable
In Stock
Rod End- 5 09221600
#12

Lift diagram

Rod end- 5

Part #09221600

In Stock
Machine Screw 06100002
#32

Electrical system diagram

Machine screw

Part #06100002

In Stock
Wmt- Idler 09217000
#12

Transmission diagram

Wmt- idler

Part #09217000

In Stock

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

Main causes: faulty battery, bad alternator…

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

Main causes: shift lever needs adjustment, neutral control needs adjustment…

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

Most common repair guides to help fix your riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

How to replace the starter motor on a riding lawn mower

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replac…

Repair difficulty
Time required
 30 minutes or less
How to rebuild a riding lawn mower carburetor

How to rebuild a riding lawn mower carburetor

Get your sputtering carburetor running smoothly in 60 minutes.…

Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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.…

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.…

Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…