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Toro
Rear-Engine Riding Mower

Model # 74370 (280000001-290999999) Official Toro riding lawn mower

Here are the diagrams and repair parts for Official Toro 74370-280000001-290999999 riding lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 428 parts  |
Screw 37-8771
Screw

Part #37-8771

$9.40
In Stock
Cap Screw 3274-10
#3

Engine & clutch assembly diagram

Cap screw

Part #3274-10

This item is not returnable
$2.16
In Stock
Cap Screw 323-8
Cap screw

Part #323-8

This item is not returnable
$2.97
In Stock
Rivet 3290-282
#6

50" deck assembly diagram

Rivet

Part #3290-282

This item is not returnable
$2.16
In Stock
Cap Screw 323-10
#26

50" deck spindle/belt drive diagram

Cap screw

Part #323-10

This item is not returnable
$2.23
In Stock
Washer 5-4460
Washer

Part #5-4460

$13.03
In Stock
Key 63-8360
#3

Electrical assembly diagram

Key

Part #63-8360

$8.46
In Stock
Clamp 2412-98
#18

Engine & clutch assembly diagram

Clamp

Part #2412-98

This item is not returnable
$2.74
In Stock
Lawn Tractor Nut 3219-6
#11

50" deck spindle/belt drive diagram

Lawn tractor nut

Part #3219-6

This item is not returnable
$3.86
In Stock
Lawn & Garden Equipment Cap Screw 321-5
#20

Seat assembly diagram

Lawn & garden equipment cap screw

Part #321-5

This item is not returnable
$2.16
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.

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Why is my riding mower not cutting evenly?

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

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Why won't my riding mower start?

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

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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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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 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 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 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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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.…

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Top questions about Sears and Sears PartsDirect

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Riding lawn mower engine clicks but doesn't turn over video

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