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Poulan
Gas Walk-Behind Mower

Model # PO475N21RA Official Poulan rotary lawn mower

Here are the diagrams and repair parts for Official Poulan PO475N21RA 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 51 parts  |
Lock Nut 83923
#39

Handle/engine/housing/wheels 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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Handle Bolt 131959
#6

Handle/engine/housing/wheels 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.
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Gbag.2212513 188965
#67

Handle/engine/housing/wheels diagram

Gbag.2212513

Part #188965

Replaced by #532410666

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Manufacturer substitution
This part replaces 188965. Substitute parts can look different from the original.
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Lawn Mower Blade Adapter 850977
#57

Handle/engine/housing/wheels diagram

Lawn mower blade adapter

Part #850977

Replaced by #581547901

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Manufacturer substitution
This part replaces 850977. Substitute parts can look different from the original.
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Nut 132004
#71

Handle/engine/housing/wheels 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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Lawn & Garden Equipment Hinge Screw 88652
#41

Handle/engine/housing/wheels 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.
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American Yard Products Lawn Mower Anti-fold Bracket 186079
#4

Handle/engine/housing/wheels diagram

American yard products lawn mower anti-fold bracket

Part #186079

Replaced by #586122501

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Manufacturer substitution
This part replaces 186079. Substitute parts can look different from the original.
This item is not returnable
$15.59 | 
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Walk-behind Lawn Mower Selector Knob 87877
#33

Handle/engine/housing/wheels diagram

Walk-behind lawn mower selector knob

Part #87877

Replaced by #532087877

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Manufacturer substitution
This part replaces 87877. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
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Lawn Mower 21-in Deck 3-in-1 Blade (replaces 532189028, 5321890-28) 189028
#56

Handle/engine/housing/wheels 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
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Lawn Mower Selector Spring 169421X004
#32

Handle/engine/housing/wheels diagram

Lawn mower selector spring

Part #169421X004

Replaced by #584371801

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Manufacturer substitution
This part replaces 169421X004. Substitute parts can look different from the original.
This item is not returnable
$6.83
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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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

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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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