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Poulan
Gas Walk-Behind Mower

Model # PR7Y21CHA Official Poulan rotary lawn mower

Here are the diagrams and repair parts for Official Poulan PR7Y21CHA 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 103 parts  |
Lock Nut 83923
#26

Handle/engine/housing 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 | 
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Pipe Fitting 132010
#31

Grassbag/wheels/gear case diagram

Pipe fitting

Part #132010

Replaced by #532409149

?
Manufacturer substitution
This part replaces 132010. 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
#9

Grassbag/wheels/gear case 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 | 
16% OFF Phone Price : $6.31
In Stock
Dust Cover 180504
#14

Grassbag/wheels/gear case diagram

Dust cover

Part #180504

Replaced by #581840401

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Manufacturer substitution
This part replaces 180504. Substitute parts can look different from the original.
BEST SELLER
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lawn & Garden Equipment Lock Nut 73800400
Lawn & garden equipment lock nut

Part #73800400

Replaced by #582478602

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Manufacturer substitution
This part replaces 73800400. Substitute parts can look different from the original.
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$2.64 | 
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In Stock
Nut 132004
Nut

Part #132004

Replaced by #582478602

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Manufacturer substitution
This part replaces 132004. Substitute parts can look different from the original.
BEST SELLER
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$2.64 | 
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Washer 67725
#16

Grassbag/wheels/gear case diagram

Washer

Part #67725

Replaced by #532067725

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Manufacturer substitution
This part replaces 67725. Substitute parts can look different from the original.
BEST SELLER
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lawn & Garden Equipment Hinge Screw 88652
#21

Handle/engine/housing 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.21 175650
#86

Handle/engine/housing diagram

Rod.hinge.21

Part #175650

Replaced by #532175650

?
Manufacturer substitution
This part replaces 175650. Substitute parts can look different from the original.
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Lawn Mower Wheel Assembly 180766
#11

Grassbag/wheels/gear case diagram

Lawn mower wheel assembly

Part #180766

Replaced by #532180775

?
Manufacturer substitution
This part replaces 180766. Substitute parts can look different from the original.
$39.98
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

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 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…

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

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

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

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

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Repair difficulty
Time required
 45 minutes or less

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

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

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