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Poulan
Gas Walk-Behind Mower

Model # PR55N21CHE Official Poulan rotary lawn mower

Here are the diagrams and repair parts for Official Poulan PR55N21CHE rotary lawn mower, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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

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Model diagram and schematic

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ALL PARTS
Showing 10 of 69 parts  |
Lock Nut 83923
#39

Engine/housing/wheels/handle 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.
BEST SELLER
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$5.31 | 
16% OFF Phone Price : $6.31
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Handle Bolt 131959
#6

Engine/housing/wheels/handle diagram

Handle bolt

Part #131959

Replaced by #532191574

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Manufacturer substitution
This part replaces 131959. Substitute parts can look different from the original.
BEST SELLER
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lock Nut 73800500
#24

Engine/housing/wheels/handle diagram

Lock nut

Part #73800500

Replaced by #596040501

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Manufacturer substitution
This part replaces 73800500. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.11
In Stock
Nut Lck 5/16 73990500
#35

Engine/housing/wheels/handle diagram

Nut lck 5/16

Part #73990500

Replaced by #596040501

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Manufacturer substitution
This part replaces 73990500. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.11
In Stock
Discharge Guard 165760
#31

Engine/housing/wheels/handle diagram

Discharge guard

Part #165760

Replaced by #589482402

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Manufacturer substitution
This part replaces 165760. Substitute parts can look different from the original.
BEST SELLER
$11.98 | 
14% OFF Phone Price : $13.98
In Stock
Gbag.250c2.b 184781
#67

Engine/housing/wheels/handle diagram

Gbag.250c2.b

Part #184781

Replaced by #532410666

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Manufacturer substitution
This part replaces 184781. Substitute parts can look different from the original.
BEST SELLER
$68.54 | 
8% OFF Phone Price : $74.54
In Stock
Mulcher Door 165754
#10

Engine/housing/wheels/handle 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
In Stock
Rod.hinge.co 147286
#16

Engine/housing/wheels/handle diagram

Rod.hinge.co

Part #147286

Replaced by #532147286

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Manufacturer substitution
This part replaces 147286. Substitute parts can look different from the original.
This item is not returnable
$9.31 | 
10% OFF Phone Price : $10.31
In Stock
Wheel And Tire 157178
#78

Engine/housing/wheels/handle diagram

Wheel and tire

Part #157178

Replaced by #532150339

?
Manufacturer substitution
This part replaces 157178. Substitute parts can look different from the original.
$32.98 | 
15% OFF Phone Price : $38.98
In Stock
Upstop Bracket 850733X004
#13

Engine/housing/wheels/handle diagram

Upstop bracket

Part #850733X004

Replaced by #532850733

?
Manufacturer substitution
This part replaces 850733X004. Substitute parts can look different from the original.
This item is not returnable
$8.54
In Stock

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 run rough?

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

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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 vibrate a lot?

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

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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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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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Repair guides for gas walk-behind mowers

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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…

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Repair difficulty
Time required
 15 minutes or less
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Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

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How to replace a lawn mower flywheel key on a flathead engine

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Repair difficulty
Time required
 45 minutes or less

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