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Poulan PO4QN20SB rotary lawn mower Parts
Here are the diagrams and repair parts for Poulan PO4QN20SB rotary lawn mower, as well as links to manuals and error code tables, if available.
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Browse Parts for PO4QN20SB Walk-Behind Mowers
Engine/housing/handle/wheels diagram
Lock Nut
Part #83923Replaced by #532409149
Manufacturer substitutionThis part replaces 83923. Substitute parts can look different from the original.This item is not returnableIn Stock$3.0825% OFF Phone Price : $4.08
Qty
Engine/housing/handle/wheels diagram
Handle Knob
Part #136376Replaced by #532185577
Manufacturer substitutionThis part replaces 136376. Substitute parts can look different from the original.In Stock$13.8413% OFF Phone Price : $15.84QtyEngine/housing/handle/wheels diagram
Handle Bolt
Part #131959Replaced by #532191574
Manufacturer substitutionThis part replaces 131959. Substitute parts can look different from the original.In Stock$9.5010% OFF Phone Price : $10.50QtyEngine/housing/handle/wheels diagram
Husqvarna Lawn & Garden Equipment Washer
Part #851074Replaced by #532851074
Manufacturer substitutionThis part replaces 851074. Substitute parts can look different from the original.In Stock$8.6310% OFF Phone Price : $9.63QtyEngine/housing/handle/wheels diagram
Lawn & Garden Equipment Screw
Part #851084Replaced by #532851084
Manufacturer substitutionThis part replaces 851084. Substitute parts can look different from the original.In Stock$33.4915% OFF Phone Price : $39.49QtyEngine/housing/handle/wheels diagram
Nut
Part #132004Replaced by #582478602
Manufacturer substitutionThis part replaces 132004. Substitute parts can look different from the original.This item is not returnableIn Stock$3.3623% OFF Phone Price : $4.36QtyEngine/housing/handle/wheels diagram
Husqvarna Lawn Mower 20-in Deck Blade
Part #145106Replaced by #532145106
Manufacturer substitutionThis part replaces 145106. Substitute parts can look different from the original.In Stock$19.7043% OFF Was : $34.59QtyEngine/housing/handle/wheels diagram
Rope Guide
Part #179585Replaced by #586122501
Manufacturer substitutionThis part replaces 179585. Substitute parts can look different from the original.This item is not returnableIn Stock$18.1210% OFF Phone Price : $20.12QtyEngine/housing/handle/wheels diagram
Screw, 5/16-in
Part #149741Replaced by #532171877
Manufacturer substitutionThis part replaces 149741. Substitute parts can look different from the original.In Stock$10.4916% OFF Phone Price : $12.49QtyEngine/housing/handle/wheels diagram
Lawn & Garden Equipment Bolt
Part #150406Replaced by #532150406
Manufacturer substitutionThis part replaces 150406. Substitute parts can look different from the original.This item is not returnableIn Stock$9.26Qty
Most common symptoms to help you fix your walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
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 front deck tray
Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…
Repair time and Difficulty
60 minutes or less
How to replace a lawn mower transmission
Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…
Repair time and Difficulty
60 minutes or less
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…
Repair time and Difficulty
45 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.
Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…
See a comparison of cordless lawn mowers and gas mowers so you can decide which is best for you.…
Learn about a new feature added to the Search Bar on Sears PartsDirect…
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