Poulan
Gas Line Trimmer

Model #PP428S Official Poulan trimmer

Here are the diagrams and repair parts for Poulan PP428S trimmer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Showing 10 of 92 parts

Line Trimmer Spool Cover (replaces 505496401, 505506201, 537419401, 5374194-01, 537419701)#31

Handle/shield/driveshaft Diagram

Cover p25

Part #505506201
Replaced by #545003365
?
Manufacturer substitution
This part replaces 505506201. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
$12.14 | 
14% OFF 
Phone Price: $14.14
Line Trimmer Spool Cover (replaces 505496401, 505506201, 537419401, 5374194-01, 537419701)#30

Handle/shield/driveshaft Diagram

Eyelet p25

Part #505496401
Replaced by #545003365
?
Manufacturer substitution
This part replaces 505496401. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
$12.14 | 
14% OFF 
Phone Price: $14.14
Line Trimmer Bump Feed Knob (replaces 5374196-01)#32

Handle/shield/driveshaft Diagram

Line trimmer bump feed knob (replaces 5374196-01)

Part #537419601
This item is not returnable
In Stock
$6.26
Lawn & Garden Equipment Screw

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Lawn & garden equipment screw

Part #530015814
Replaced by #503210619
?
Manufacturer substitution
This part replaces 530015814. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.52 | 
28% OFF 
Phone Price: $3.52
Lawn & Garden Equipment Screw

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Lawn & garden equipment screw

Part #530015775
This item is not returnable
In Stock
$2.99
Lawn & Garden Equipment Washer#50

Cylinder/crankcase/muffler Diagram

Lawn & garden equipment washer

Part #530094189
This item is not returnable
In Stock
$4.09 | 
20% OFF 
Phone Price: $5.09
Line Trimmer Drive Shaft Coupler#14

Handle/shield/driveshaft Diagram

Line trimmer drive shaft coupler

Part #545213801
This item is not returnable
In Stock
$8.99
Line Trimmer Engine Piston Pin#20

Cylinder/crankcase/muffler Diagram

Line trimmer engine piston pin

Part #530015162
This item is not returnable
In Stock
$3.73
Line Trimmer Debris Shield Bracket#25

Handle/shield/driveshaft Diagram

Line trimmer debris shield bracket

Part #545150701
This item is not returnable
In Stock
$3.15
Line Trimmer Nut

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Wing nut plate

Part #530016152
Replaced by #530091373
?
Manufacturer substitution
This part replaces 530016152. Substitute parts can look different from the original.
This item is not returnable
In Stock
$3.76

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank
Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings
Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carburetor

Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

October 1, 2013
By Lyle Weischwill
How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these instructions to do the job in under 30 minutes.

Repair difficulty
Time required
 15 minutes or less
October 1, 2013
By Lyle Weischwill
How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these instructions to replace the carburetor in under 30 minutes.

Repair difficulty
Time required
 15 minutes or less
October 1, 2013
By Lyle Weischwill
How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yourself, following these instructions.

Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas line trimmers

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

February 11, 2023

Top 10 electric lawn and garden tools for 2023

By Lyle Weischwill

Learn about the top 10 must-have electric lawn & garden tools for 2023

August 30, 2022

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

By Lyle Weischwill

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.

March 1, 2016

Grass line trimmer maintenance checklist

By Lyle Weischwill

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this helpful maintenance checklist.