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Troybilt TB4000 trimmer Parts
Here are the diagrams and repair parts for Troybilt TB4000 trimmer, as well as links to manuals and error code tables, if available.
Owner’s manual
By Schematic
SELECT DIAGRAM
Browse Parts for TB4000 Line Trimmers
#NI05
All parts diagram
Kit
Part #182156
The manufacturer no longer makes this part, and there's no substitute part
Boom and trimmer diagram
Flexible Drive Shaft
Part #182833
The manufacturer no longer makes this part, and there's no substitute part
#NI01
All parts diagram
Crankcase Assembly (includes 24,25 And 64-76)
Part #182595
The manufacturer no longer makes this part, and there's no substitute part
Engine parts diagram
Guide Rod
Part #182102
The manufacturer no longer makes this part, and there's no substitute part
Boom and trimmer diagram
Nut
Part #181815
The manufacturer no longer makes this part, and there's no substitute part
Engine parts diagram
Gasket
Part #181001
The manufacturer no longer makes this part, and there's no substitute part
Boom and trimmer diagram
Upper Hand
Part #181812
The manufacturer no longer makes this part, and there's no substitute part
Boom and trimmer diagram
Closure Tube
Part #612021
The manufacturer no longer makes this part, and there's no substitute part
Engine parts diagram
Spring
Part #181746
The manufacturer no longer makes this part, and there's no substitute part
Engine parts diagram
Cam Bracket Assembly (includes 26-29)
Part #182125
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, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…
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…
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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