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Poulan
Gas Walk-Behind Mower

Model # PR55N21CH Official Poulan rotary lawn mower

Here are the diagrams and repair parts for Official Poulan PR55N21CH rotary lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 65 parts  |
Lock Nut 83923
#61

Rotary 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.
BEST SELLER
This item is not returnable
$5.31
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Hex Flange Lock Nut 145212
#39

Rotary mower diagram

Hex flange lock nut

Part #145212

Replaced by #532409149

?
Manufacturer substitution
This part replaces 145212. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31
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16% OFF Phone Price : $6.31
In Stock
Discharge Guard 165760
#31

Rotary mower 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
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14% OFF Phone Price : $13.98
In Stock
Lawn & Garden Equipment Hinge Screw 88652
#41

Rotary mower diagram

Lawn & garden equipment hinge screw

Part #88652

Replaced by #532088652

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Manufacturer substitution
This part replaces 88652. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31
| 
16% OFF Phone Price : $6.31
In Stock
Rod.hinge.co 147286
#51

Rotary mower diagram

Rod.hinge.co

Part #147286

Replaced by #532147286

?
Manufacturer substitution
This part replaces 147286. Substitute parts can look different from the original.
This item is not returnable
$9.31
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10% OFF Phone Price : $10.31
In Stock
Lawn Mower Wheel 193909X421
#37

Rotary mower diagram

Lawn mower wheel

Part #193909X421

Replaced by #532400542

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Manufacturer substitution
This part replaces 193909X421. Substitute parts can look different from the original.
This item is not returnable
$30.64
| 
16% OFF Phone Price : $36.64
In Stock
Lawn Mower 21-in Deck 3-in-1 Blade (replaces 532189028, 5321890-28) 189028
#56

Rotary mower diagram

Lawn mower 21-in deck 3-in-1 blade (replaces 532189028, 5321890-28)

Part #189028

Replaced by #532189028

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Manufacturer substitution
This part replaces 189028. Substitute parts can look different from the original.

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$24.60
In Stock
Bolt 74780512
#8

Rotary mower diagram

Bolt

Part #74780512

Replaced by #596030501

?
Manufacturer substitution
This part replaces 74780512. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Lawn & Garden Equipment Washer (replaces 532851074, 5328510-74) 851074
#55

Rotary mower diagram

Lawn & garden equipment washer (replaces 532851074, 5328510-74)

Part #851074

Replaced by #532851074

?
Manufacturer substitution
This part replaces 851074. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Blade Adapter 193707
#57

Rotary mower diagram

Blade adapter

Part #193707

Replaced by #532418373

?
Manufacturer substitution
This part replaces 193707. Substitute parts can look different from the original.
$17.11
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 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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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
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