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Snapper
Rear-Engine Riding Mower

Model # ZT18440KH Official Snapper hydro drive fastcut ztr riding mower

Here are the diagrams and repair parts for Official Snapper ZT18440KH hydro drive fastcut ztr riding mower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 371 parts  |
Bearing 1705897
#9

44"/50" deck-housing/arbors/blades diagram

Bearing

Part #1705897

Replaced by #1705897SM

?
Manufacturer substitution
This part replaces 1705897. Substitute parts can look different from the original.
$10.62 | 
16% OFF Phone Price : $12.62
In Stock
Switch 5022180
Switch

Part #5022180

Replaced by #1722887SM

?
Manufacturer substitution
This part replaces 5022180. Substitute parts can look different from the original.
$37.79 | 
14% OFF Phone Price : $43.79
In Stock
Nut, Hex Lock, 5/16c Esna Yz 7091298
Nut, hex lock, 5/16c esna yz

Part #7091298

Replaced by #703902

?
Manufacturer substitution
This part replaces 7091298. Substitute parts can look different from the original.
This item is not returnable
$5.56 | 
15% OFF Phone Price : $6.56
In Stock
Fitting 1704314
#12

44"/50" deck-housing/arbors/blades diagram

Fitting

Part #1704314

Replaced by #703907

?
Manufacturer substitution
This part replaces 1704314. Substitute parts can look different from the original.
$9.17
In Stock
Blade 1704100A
#19

44"/50" deck-housing/arbors/blades diagram

Blade

Part #1704100A

Replaced by #1716696ASM

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Manufacturer substitution
This part replaces 1704100A. Substitute parts can look different from the original.

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$33.18 | 
15% OFF Phone Price : $39.18
In Stock
Key 7073406
Key

Part #7073406

Replaced by #1717163SM

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Manufacturer substitution
This part replaces 7073406. Substitute parts can look different from the original.
This item is not returnable
$13.31 | 
13% OFF Phone Price : $15.31
In Stock
Lawn & Garden Equipment Bolt 5025013X16
Lawn & garden equipment bolt

Part #5025013X16

Replaced by #703589

?
Manufacturer substitution
This part replaces 5025013X16. Substitute parts can look different from the original.
$7.69 | 
12% OFF Phone Price : $8.69
In Stock
Bolt 5025010X6
Bolt

Part #5025010X6

Replaced by #5025010X6SM

?
Manufacturer substitution
This part replaces 5025010X6. Substitute parts can look different from the original.
This item is not returnable
$6.71
In Stock
Pulley 1713161
#3

44"/50" deck-housing/arbors/blades diagram

Pulley

Part #1713161

Replaced by #1713161SM

?
Manufacturer substitution
This part replaces 1713161. Substitute parts can look different from the original.
$28.82
In Stock
Idler Pulley 1724387
#4

44"/50" deck-belt/idler diagram

Idler pulley

Part #1724387

Replaced by #1724387SM

?
Manufacturer substitution
This part replaces 1724387. Substitute parts can look different from the original.
$49.81 | 
11% OFF Phone Price : $55.81
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.

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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 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…

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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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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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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, …

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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 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…

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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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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 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.…

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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…

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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…

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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.

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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.…

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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.…

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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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