Rear-Engine Riding Mower

Model # 991075 Official Ariens lawn mower

Here are the diagrams and repair parts for Official Ariens 991075 lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for
991075 Riding Mowers & Tractors
Cable-posi 03286000
#15

Electrical system diagram

Cable-posi

Part #03286000

In Stock
Sems Bolt 07000018
#2

Fuel tanks & hoses diagram

Sems bolt

Part #07000018

In Stock
Counterwei 01922851
#12

Frame diagram

Counterwei

Part #01922851

In Stock
Spacer- 3/ 03367200
#16

Transmission diagram

Spacer- 3/

Part #03367200

In Stock
Decal 03998400
#14

Decals diagram

Decal

Part #03998400

In Stock
Wmt-pto Be 04053651
#15

Frame diagram

Wmt-pto be

Part #04053651

In Stock
Wmt- Lh Co 03773651
#8

Steering controls diagram

Wmt- lh co

Part #03773651

In Stock
Flat Washer 06437200
Flat washer

Part #06437200

This item is not returnable
In Stock
Weldment Seal 02982751
#4

Seat diagram

Weldment seal

Part #02982751

In Stock
Wave Washer 03704900
#19

Steering controls diagram

Wave washer

Part #03704900

This item is not returnable
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: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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

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

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.…