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Husqvarna
Rear-Engine Riding Mower

Model # CZ3815 Official Husqvarna tractor

Here are the diagrams and repair parts for Official Husqvarna CZ3815 tractor, 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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ALL PARTS
Showing 10 of 220 parts  |
Mandrel Assembly 5391101-58
Mandrel assembly

Part #5391101-58

Replaced by #130794

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Manufacturer substitution
This part replaces 5391101-58. Substitute parts can look different from the original.
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$41.14 | 
13% OFF Phone Price : $47.14
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Screw 5391076-30
Screw

Part #5391076-30

Replaced by #584953901

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Manufacturer substitution
This part replaces 5391076-30. Substitute parts can look different from the original.
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$5.31 | 
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Blade Switch 5391017-68
#1

Console assembly diagram

Blade switch

Part #5391017-68

Replaced by #582107601

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Manufacturer substitution
This part replaces 5391017-68. Substitute parts can look different from the original.
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In Stock
Igniter Switch 5391075-41
#3

Console assembly diagram

Igniter switch

Part #5391075-41

Replaced by #175566

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Manufacturer substitution
This part replaces 5391075-41. Substitute parts can look different from the original.
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$11.18 | 
15% OFF Phone Price : $13.18
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Shield 5391104-61
#25

42" deck assembly diagram

Shield

Part #5391104-61

Replaced by #532130968

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Manufacturer substitution
This part replaces 5391104-61. Substitute parts can look different from the original.
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$34.98 | 
15% OFF Phone Price : $40.98
In Stock
Ez Oil Drain 5391100-93
Ez oil drain

Part #5391100-93

Replaced by #428287

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Manufacturer substitution
This part replaces 5391100-93. Substitute parts can look different from the original.
BEST SELLER
$11.27 | 
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In Stock
Vortex Baffle 5391104-63
#3

42" deck assembly diagram

Vortex baffle

Part #5391104-63

Replaced by #531167001

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Manufacturer substitution
This part replaces 5391104-63. Substitute parts can look different from the original.
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#10-24 X 5/8 5399769-52
#58

Main frame diagram

#10-24 x 5/8

Part #5399769-52

Replaced by #596039001

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Manufacturer substitution
This part replaces 5399769-52. Substitute parts can look different from the original.
BEST SELLER
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$3.98 | 
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Grommet 5391052-45
#49

Main frame diagram

Grommet

Part #5391052-45

Replaced by #532003645

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Manufacturer substitution
This part replaces 5391052-45. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
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Stem, Fuel T 5391104-32
#23

Main frame diagram

Stem, fuel t

Part #5391104-32

Replaced by #139277

?
Manufacturer substitution
This part replaces 5391104-32. Substitute parts can look different from the original.
BEST SELLER
$8.36 | 
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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.

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, …

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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.…

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.

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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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How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

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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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