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Homelite UT20780 trimmer/brushcutter Parts
Here are the diagrams and repair parts for Homelite UT20780 trimmer/brushcutter, as well as links to manuals and error code tables, if available.
By Schematic
SELECT DIAGRAM
Browse Parts for UT20780 Line Trimmers
Square Head Screw
Part #UP04892Replaced by #PS02435
Manufacturer substitutionThis part replaces UP04892. Substitute parts can look different from the original.This item is not returnableIn Stock$2.57
Qty
Screw
Part #UP03406Replaced by #82538
Manufacturer substitutionThis part replaces UP03406. Substitute parts can look different from the original.In Stock$25.57QtyShaft/spool/string/grass deflector diagram
Hex Head B
Part #UP04154Replaced by #82278
Manufacturer substitutionThis part replaces UP04154. Substitute parts can look different from the original.This item is not returnableIn Stock$2.16QtyLead
Part #UP03174Replaced by #PA00387
Manufacturer substitutionThis part replaces UP03174. Substitute parts can look different from the original.This item is not returnableIn Stock$4.34QtyShaft/spool/string/grass deflector diagram
Guardblade
Part #UP05070
The manufacturer no longer makes this part, and there's no substitute part
Shaft/spool/string/grass deflector diagram
Cartridge Line
Part #D09365
The manufacturer no longer makes this part, and there's no substitute part
Truss Hd S
Part #UP04247
The manufacturer no longer makes this part, and there's no substitute part
Engine internal diagram
Gasket
Part #UP04335
The manufacturer no longer makes this part, and there's no substitute part
Muffler/air cleaner diagram
Filter Kit
Part #UP00022
The manufacturer no longer makes this part, and there's no substitute part
Spark Plug
Part #UP03883
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your line trimmers
Choose a symptom to see related grass line trimmer repairs.
Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…
Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…
Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…
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.
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 yours…
Repair time and Difficulty
15 minutes or less
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 …
Repair time and Difficulty
15 minutes or less
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…
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your line trimmers
Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.
Vapor lock can stop your trimmer cold in summer heat. Learn how to prevent it and keep your lawn looking sharp…
Trying to decide between a straight shaft and curved shaft trimmer? This guide compares both designs to help you underst…
Wondering if your weed whacker can pick up the slack for your broken lawn mower? You're not alone. In this guide, we bre…
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