EasyApplianceParts is now PartSelect! We've merged our sites to provide a better shopping experience for you.   Full Details
✖

Find Parts

Parts Departments

Top Model Types

Top Brands

Repair Help

Expert Repair Videos

Keep typing for more specific results...

HD4QN20RF Poulan Lawn Mower - Overview

Diagrams for HD4QN20RF

See every part. Know exactly what you need.

Enter a part description. DIY Heroes keep it simple, eg. "belt" or "pump".

Search filter:
Clear Filter
Your search term must have 3 or more characters.
Blade Adapter – Part Number: 581547901
$26.35
In Stock
Blade Adapter
★★★★★
★★★★★
(3)
Part #581547901
This is an OEM replacement part for various models of lawn mowers. This part connects the blade to the shaft, is made of metal, is silver, is not part of a kit or assembly, and is sold individually. It will be found on the shaft of the mower, where the blade attaches. If your blade can no longer be supported and held on the machine, you should inspect the Blade Adapter for signs of wear or damage, replacing it if you find any. You will need a socket set and wrench set to complete this repair. Customers rate this repair as Easy.
Lawn Mower Flangelock Hex Nut – Part Number: 532409149
$6.72
In Stock
Lawn Mower Flangelock Hex Nut
Part #532409149
Made of high-quality metal, this hex flange locknut is designed for use with various lawn mowers and ride-on mower/tractor models and is sold individually. This locknut attaches to the end of the carriage bolt and is an important component to the axle assembly. This locknut has a 3/8-inch inner-diameter and is 16 threads-per-inch. To replace this locknut, you will need a wrench, and if there are multiple locknuts on your equipment, they may all need to be replaced.
Lawn Mower Hardened Washer – Part Number: 532851074
$6.72
In Stock
Lawn Mower Hardened Washer
Part #532851074
This washer is not part of a kit or assembly. It is sold individually. With an O.D. of 1 inch, this OEM replacement part is made of dark grey metal and is used to provide a tight seal between the mower blade and the blade bolt/screw. This part should be replaced if you notice any visible wear, warping, or damage. You will need a wrench or socket set to complete this repair. Customers rate this repair as Easy.
20" Blade – Part Number: 532145106
$28.55
In Stock
20" Blade
Part #532145106
This replacement blade is sourced directly from original equipment manufacturer. It is a high quality item designed for use with walk-behind lawn mowers. This blade can be used for mulching grass, meaning it will circulate the grass longer so it can be cut into smaller pieces. This part is made from strong durable metal and it is sold individually. To replace it you will need a wrench.
Hex Head Screw 3/8-24x1-3/8 Gr. 8 – Part Number: 532851084
$6.72
In Stock
Hex Head Screw 3/8-24x1-3/8 Gr. 8
Part #532851084
This is a genuine manufacturer-sourced replacement screw which is specially designed for use with Craftsman lawn and garden equipment. It is a standard hardware which has multiple applications depending on the model of your unit, please refer to the appropriate diagrams for the correct location and use of this item. This part is made of high-quality metal and it is sold individually, you will need a wrench to secure or remove it.
Control Cable – Part Number: 532162778
$33.68
In Stock
Control Cable
Part #532162778
The engine zone control cable stops the blade when the control handle is released on walk-behind lawn mowers. If the cable is broken it will cause the brake to not release even when the lever is pressed. This is a genuine OEM sourced replacement part that is designed for use with lawn mowers. Please note this durable metal rubber insulated cable is sold individually.
Lock Washer – Part Number: 596238701
$6.72
In Stock
Lock Washer
Part #596238701
This is a genuine OEM replacement part used on a variety of Lawn and Garden Equipment. This part is made out of Metal and it is Sold Individually. This steel washer has several applications based on your unit. Please refer to diagrams for proper application.
Hairpin Cotter – Part Number: 532051793
No Longer Available
Hairpin Cotter
Part #532051793
This is an authentic manufacturer-sourced replacement component which is specially designed for use with Poulan, Husqvarna and Weed Eater walk-behind lawn mowers. It helps to secure a component on a shaft, please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality part is made of durable metal and is sold individually.
Hubcap – Part Number: 532077400
$7.65
Special Order
Hubcap
Part #532077400
This is an authentic replacement part sourced directly from the manufacturer. The hub cap is commonly found in lawn mowers from Husqvarna, Poulan, and Weed Eater. This part is made of high-quality plastic, and is used to cover and protect the central opening of the wheel assembly. This item is provided as an individual replacement part.
Lawn Mower Screw Hinge – Part Number: 532088652
$6.72
In Stock
Lawn Mower Screw Hinge
Part #532088652
A genuine item which is supplied directly from the original equipment manufacturer for use with Poulan, Husqvarna and Weed Eater lawn and garden equipment. It is one of the special screws for the skirt, please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality component is made of durable metal and is sold individually.
Hex Head Thread Rolling Screw 3/8-16x1-1/8 – Part Number: 532150406
$7.39
In Stock
Hex Head Thread Rolling Screw 3/8-16x1-1/8
Part #532150406
This is an authentic replacement part manufactured for use with walk-behind lawnmowers. The hex head screw is used with several different models of lawnmowers and is commonly used to secure a guard to the deck assembly. This hex head screw is available as an individual replacement part, please see model diagram for associative parts.
Handle Knob Kit – Part Number: 532183724
$13.51
In Stock
Handle Knob Kit
Part #532183724
This is an authentic replacement part sourced directly from the manufacturer. The handle knob is commonly found on Craftsman lawn mowers and snowblowers. This part includes a knob made of high-quality plastic, and a metal bolt for attachment. It is generally used to attach the upper handle to the lower. You may require a wrench when replacing this part.
See how others fixed this model. Time, tools, difficulty, and steps that lead to victory! View More

Search repair tips from other customers using simple keywords like "replace", "fit", "remove", "inspect". DIY doesn't mean you have to do it alone!

Search filter:
Clear Filter
Your search term must have 3 or more characters.
Dull blade
2 of 3 people found this instruction helpful.
  • Robin from BIRCH RUN, MI
  • Very Easy
  • 15 - 30 mins
  • Socket set
Disconnected spark plug wire laid lawn mower in side removed blade bolt took off old blade put new blade on tightened it reconnected spark plug wire
Was this helpful?
Thank you for voting!
My lawn mower blade wouldn’t stay in place. The old blade adapter had worn down and broken.
3 of 19 people found this instruction helpful.
  • Joel from ROSEVILLE, MN
  • Very Easy
  • Less than 15 mins
  • Socket set
I took off the old blade adapter and put the new one on. It literally requires removing one bolt. Unfortunately, once I started and ran my mower for a few minutes it blew up and left a charred patch of lawn. The underside of the mower is mangled metal and unusable now. The repair, though, was super easy!
Was this helpful?
Thank you for voting!