Ariens
Rear-Engine Riding Mower

Model # 99180000 (101-999999) Official Ariens riding lawn mower

Here are the diagrams and repair parts for Official Ariens 99180000-101-999999 riding lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 295 parts  |

Decal-arie 03818300
#2

Decals-style diagram

Decal-arie

Part #03818300

In Stock
Hose Hyd 00191206
#8

Hydraulics diagram

Hose hyd

Part #00191206

In Stock
Ring- Rue 00967354
#2

Frame/seat/seat support diagram

Ring- rue

Part #00967354

In Stock
Plate- Ste 00191083
#14

Steering controls/clutch diagram

Plate- ste

Part #00191083

In Stock
Bearing 00150079
#6

Steering controls/clutch diagram

Bearing

Part #00150079

In Stock
Plate 03786659
#14

Frame/seat/seat support diagram

Plate

Part #03786659

In Stock
Decal- Hoc 00191208
#11

Decals-safety diagram

Decal- hoc

Part #00191208

In Stock
Pulley 00180780
#43

Mower deck/belt/idlers diagram

Pulley

Part #00180780

In Stock
Washer 00103906
#1

Mower deck/belt/idlers diagram

Washer

Part #00103906

In Stock
Wheel Hub 00191110
#1

Casters/wheels/brake diagram

Wheel hub

Part #00191110

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

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

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

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

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

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

Main causes: faulty battery, bad alternator…

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.…