Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Toro
Rear-Engine Riding Mower

Model # 74373 (290000001 AND UP) Official Toro riding lawn mower

Here are the diagrams and repair parts for Official Toro 74373-290000001-AND-UP riding lawn mower, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual
  View engine

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 458 parts  |
Fuse 109103
#14:1

Electrical assembly diagram

Fuse

Part #109103

$12.37
In Stock
Lawn Tractor Transaxle Breather Tube 114-1635
Lawn tractor transaxle breather tube

Part #114-1635

$77.40
In Stock
Lawn Tractor Sleeve Bearing 112-9857
Lawn tractor sleeve bearing

Part #112-9857

$36.56
In Stock
Lawn Tractor Transaxle Brake Shaft 114-1633
Lawn tractor transaxle brake shaft

Part #114-1633

$62.09
In Stock
Cover Nut 115-5057
Cover nut

Part #115-5057

$27.51
In Stock
Decal Scal 112-9840
#10

50" deck assembly diagram

Decal scal

Part #112-9840

$13.03
In Stock
Lawn Tractor Transaxle Pulley 104-1754
Lawn tractor transaxle pulley

Part #104-1754

$100.94
In Stock
Lawn Tractor Ignition Switch 110-6764
#2

Electrical assembly diagram

Lawn tractor ignition switch

Part #110-6764

$31.69
In Stock
Washer 109-3724
#28

Frame assembly diagram

Washer

Part #109-3724

This item is not returnable
$5.97
In Stock
Lawn Tractor Starter Solenoid 117-1197
#8

Electrical assembly diagram

Lawn tractor starter solenoid

Part #117-1197

$68.80
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

  • Key 63-8360
    Key
    $8.46

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

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

View all

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

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

Read more

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…

Read more

Why won't my riding mower move?

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

Read more

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…

Read more

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, …

Read more

Why does my riding mower creep in neutral?

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

Read more

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…

Read more

Why does my riding mower deck vibrate?

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

Read more

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

Main causes: faulty battery, bad alternator…

Read more

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.

View all
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.…

Read more
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…

Read more
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…

Read more
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.

View all
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.…

Read more
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.…

Read more
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.…

Read more

Parts & More

Front-Engine Lawn Tractor
Shop Model #PR20H42STD Poulan tractor