Gas Walk-Behind Mower

Model # PR55N21CC Official Poulan lawn mower

Here are the diagrams and repair parts for Official Poulan PR55N21CC lawn mower, as well as links to manuals and error code tables, if available.

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PR55N21CC Walk-Behind Mowers
Lock Nut 83923
#39

Rotary lawn mower diagram

Lock nut

Part #83923

Replaced by #532409149

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Manufacturer substitution
This part replaces 83923. Substitute parts can look different from the original.
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$5.76
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Nut 132004
#73

Rotary lawn mower diagram

Nut

Part #132004

Replaced by #582478602

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Manufacturer substitution
This part replaces 132004. Substitute parts can look different from the original.
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$2.87
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Rope Guide 132001
#4

Rotary lawn mower diagram

Rope guide

Part #132001

Replaced by #586122501

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Manufacturer substitution
This part replaces 132001. Substitute parts can look different from the original.
This item is not returnable
$15.99
11% OFF Phone Price : $17.99
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Torsion Spring 152124
#28

Rotary lawn mower diagram

Torsion spring

Part #152124

Replaced by #532152124

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Manufacturer substitution
This part replaces 152124. Substitute parts can look different from the original.
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$8.64
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Selector 170143
#33

Rotary lawn mower diagram

Selector

Part #170143

Replaced by #532087877

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Manufacturer substitution
This part replaces 170143. Substitute parts can look different from the original.
This item is not returnable
$5.76
15% OFF Phone Price : $6.76
In Stock
Bracket Housing 154132
#9

Rotary lawn mower diagram

Bracket housing

Part #154132

Replaced by #532154132

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Manufacturer substitution
This part replaces 154132. Substitute parts can look different from the original.
In Stock
Frigidaire Lawn Mower Hex Head Thread Rolling Screw, 1/4-20 X 3/4-in 17600406
#18

Rotary lawn mower diagram

Frigidaire lawn mower hex head thread rolling screw, 1/4-20 x 3/4-in

Part #17600406

Replaced by #817600406

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Manufacturer substitution
This part replaces 17600406. Substitute parts can look different from the original.
This item is not returnable
In Stock
Mulcher Door 165754
#10

Rotary lawn mower diagram

Mulcher door

Part #165754

Replaced by #532165754

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Manufacturer substitution
This part replaces 165754. Substitute parts can look different from the original.
This item is not returnable
$13.31
13% OFF Phone Price : $15.31
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Lawn Mower Wheel (replaces 532170262) 170262
#37

Rotary lawn mower diagram

Lawn mower wheel (replaces 532170262)

Part #170262

Replaced by #532150339

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Manufacturer substitution
This part replaces 170262. Substitute parts can look different from the original.
$35.73
14% OFF Phone Price : $41.73
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Bellville Wa 19112222
#30

Rotary lawn mower diagram

Bellville wa

Part #19112222

Replaced by #819112206

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Manufacturer substitution
This part replaces 19112222. Substitute parts can look different from the original.
In Stock

Symptoms for gas walk-behind mowers

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

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

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

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

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

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

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

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.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

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