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Husqvarna
Gas Walk-Behind Mower

Model # 5521CHVB Official Husqvarna lawn mower

Here are the diagrams and repair parts for Official Husqvarna 5521CHVB lawn mower, as well as links to manuals and error code tables, if available.

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

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 109 parts  |
Hex Flange Nut 532132010
#31

Wheels/tires/bag/belt/drive cover diagram

Hex flange nut

Part #532132010

Replaced by #532409149

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Manufacturer substitution
This part replaces 532132010. Substitute parts can look different from the original.
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Hex Nut 532083923
#26

Engine/housing/handle/wheels diagram

Hex nut

Part #532083923

Replaced by #532409149

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Manufacturer substitution
This part replaces 532083923. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
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Hex Flange Nut 532145212
#9

Wheels/tires/bag/belt/drive cover diagram

Hex flange nut

Part #532145212

Replaced by #532409149

?
Manufacturer substitution
This part replaces 532145212. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
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Lawn Mower Handle Knob (replaces 180453, 189713x418, 442571x428) 532185577
#6

Engine/housing/handle/wheels diagram

Lawn mower handle knob (replaces 180453, 189713x418, 442571x428)

Part #532185577

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Dust Cover 532189403
#14

Wheels/tires/bag/belt/drive cover diagram

Dust cover

Part #532189403

Replaced by #581840401

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Manufacturer substitution
This part replaces 532189403. Substitute parts can look different from the original.
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$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lawn Tractor Hex Lock Nut 873800500
#33

Engine/housing/handle/wheels diagram

Lawn tractor hex lock nut

Part #873800500

Replaced by #596040501

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Manufacturer substitution
This part replaces 873800500. Substitute parts can look different from the original.
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This item is not returnable
$5.11
In Stock
Lawn Mower Drive Pinion Torsion Spring (replaces 188291) 532188291
#19

Wheels/tires/bag/belt/drive cover diagram

Lawn mower drive pinion torsion spring (replaces 188291)

Part #532188291

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Lawn Mower Transmission Spring (replaces 182226) 532182226
#40

Wheels/tires/bag/belt/drive cover diagram

Lawn mower transmission spring (replaces 182226)

Part #532182226

Replaced by #532406558

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Manufacturer substitution
This part replaces 532182226. Substitute parts can look different from the original.
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Control Assembly 5321891-82
#1

Wheels/tires/bag/belt/drive cover diagram

Control assembly

Part #5321891-82

Replaced by #532189182

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Manufacturer substitution
This part replaces 5321891-82. Substitute parts can look different from the original.
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Craftsman Lawn Mower Washer (replaces 67725) 532067725
#16

Wheels/tires/bag/belt/drive cover diagram

Craftsman lawn mower washer (replaces 67725)

Part #532067725

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Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Read more

Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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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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Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

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