Rear-Engine Riding Mower

Model # 991073 Official Ariens lawn mower

Here are the diagrams and repair parts for Official Ariens 991073 lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for
991073 Riding Mowers & Tractors
Key 06602700
#6

Engine & clutch diagram

Key

Part #06602700

In Stock
Wmt- Mech 09299451
#9

Mechanical lift diagram

Wmt- mech

Part #09299451

In Stock
Weldment, Front Fork (2) 00490253
#1

Wheels diagram

Weldment, front fork (2)

Part #00490253

In Stock
Wheel Tire 07100214
#11

Wheels diagram

Wheel tire

Part #07100214

In Stock
Craftsman Flanged Bushing 01522000
#12

Brakes & linkage diagram

Craftsman flanged bushing

Part #01522000

In Stock
Wmt- Park 03251100
#10

Brakes & linkage diagram

Wmt- park

Part #03251100

In Stock
Washer-blv 06445700
Washer-blv

Part #06445700

In Stock
Wmt- Lh Re 00481600
#22

Mechanical lift diagram

Wmt- lh re

Part #00481600

In Stock
Craftsman Bolt 06216100
Craftsman bolt

Part #06216100

This item is not returnable
In Stock
Lh Dump Va 03282951
#3

Transmission diagram

Lh dump va

Part #03282951

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

Main causes: faulty battery, bad alternator…

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

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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

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

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

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

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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 a mandrel assembly on a riding lawn mower

How to replace a mandrel assembly on a riding lawn mower

Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…

Repair difficulty
Time required
 30 minutes or less
How to replace the flywheel key on a riding lawn mower

How to replace the flywheel key on a riding lawn mower

If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…

Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower ignition coil

How to replace a riding lawn mower ignition coil

If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…

Repair difficulty
Time required
 30 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.…

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