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Ariens
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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  • In the search box below, enter all or part of the part number or the part’s name.

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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 343 parts  |
Craftsman Lawn Tractor Pto Switch 01545600
Craftsman lawn tractor pto switch

Part #01545600

$40.91
In Stock
Wave Washer 03704900
#26

Steering controls diagram

Wave washer

Part #03704900

This item is not returnable
$4.54
In Stock
Lawn Tractor Engine Woodruff Key 06608700
#15

Brakes diagram

Lawn tractor engine woodruff key

Part #06608700

This item is not returnable
$6.46
In Stock
Craftsman Machine Screw 06116900
#24

Electrical system diagram

Craftsman machine screw

Part #06116900

This item is not returnable
$4.00
In Stock
Tap Screw 07415400
Tap screw

Part #07415400

This item is not returnable
$2.16
In Stock
Pivot Pin 09267300
#1

Brakes diagram

Pivot pin

Part #09267300

$14.49
In Stock
Lawn & Garden Equipment Locking Flange Nut 06530400
#2

Frame diagram

Lawn & garden equipment locking flange nut

Part #06530400

This item is not returnable
$3.22
In Stock
Spacer- En 00252251
#29

Electrical system diagram

Spacer- en

Part #00252251

$8.96
In Stock
Lock Washer 06309500
#11

Lift diagram

Lock washer

Part #06309500

This item is not returnable
$4.91
In Stock
Craftsman @scr-mch 10- 06116700
Craftsman @scr-mch 10-

Part #06116700

This item is not returnable
$2.16
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.

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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Why does my riding mower deck vibrate?

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

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Why is the steering loose on my riding mower?

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

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Why won't my riding mower cut grass?

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

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How do I fix a flat tire on my riding mower?

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

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Why is my riding mower leaking oil or gas?

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

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Why does my riding mower run rough or misfire?

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

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Why does my riding mower creep in neutral?

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

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Why won't my riding mower move?

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

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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.

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How to replace the seat switch on a riding lawn mower

How to replace the seat switch on a riding lawn mower

Follow the steps in this guide to install a new riding mower seat switch in about 15 minutes.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a riding lawn mower spark plug

How to replace a riding lawn mower spark plug

If the engine is hard to start or if the spark plug electrode is burnt or cracked, take 15 minutes to replace it.…

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Repair difficulty
Time required
 15 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.…

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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.

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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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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.…

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Riding mower and tractor common questions

Riding mower and tractor common questions

You might find the answers to your questions about your riding mower or lawn tractor in this list of frequently asked qu…

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