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

Owner’s manual

Model diagram and schematic

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Showing 10 of 109 parts  |
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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Hex Nut 532132004
#92

Engine/housing/handle/wheels diagram

Hex nut

Part #532132004

Replaced by #582478602

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Manufacturer substitution
This part replaces 532132004. Substitute parts can look different from the original.
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Lawn Mower Screw (replaces 88652) 532088652
#21

Engine/housing/handle/wheels diagram

Lawn mower screw (replaces 88652)

Part #532088652

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Lawn Mower Discharge Chute Hinge Rod (replaces 175650) 532175650
#86

Engine/housing/handle/wheels diagram

Lawn mower discharge chute hinge rod (replaces 175650)

Part #532175650

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Rope Guide 532179585
#19

Engine/housing/handle/wheels diagram

Rope guide

Part #532179585

Replaced by #586122501

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Manufacturer substitution
This part replaces 532179585. Substitute parts can look different from the original.
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$15.59 | 
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E-ring 812000058
#12

Wheels/tires/bag/belt/drive cover diagram

E-ring

Part #812000058

This item is not returnable
$5.11
In Stock
Blade.21.push/rwgd/fwg 532189028
#47

Engine/housing/handle/wheels diagram

Blade.21.push/rwgd/fwg

Part #532189028

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$24.60
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Screw.ta 817060410
#13

Engine/housing/handle/wheels diagram

Screw.ta

Part #817060410

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$6.83
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Pawl.drive.21.ez-walk 532175098
#17

Wheels/tires/bag/belt/drive cover diagram

Pawl.drive.21.ez-walk

Part #532175098

$8.54
In Stock
Washer 532088348
#29

Engine/housing/handle/wheels diagram

Washer

Part #532088348

Replaced by #532088348

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Manufacturer substitution
This part replaces 532088348. Substitute parts can look different from the original.
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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…

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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.…

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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.…

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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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