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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.

Troybilt TB4000 trimmer
By Schematic
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This is the number corresponding to the part on the diagram / schematic

Browse Parts forTB4000 Line Trimmers

  • Muffler Mounting Screw for Troybilt TB4000 - Part 182105

    Muffler Mounting Screw

    Part #182105

    The manufacturer no longer makes this part, and there's no substitute part

  • Spring for Troybilt TB4000 - Part 181038

    Engine parts diagram

    Spring

    Part #181038

    The manufacturer no longer makes this part, and there's no substitute part

  • Switch for Troybilt TB4000 - Part 180252

    Boom and trimmer diagram

    Switch

    Part #180252

    The manufacturer no longer makes this part, and there's no substitute part

  • Cylinder Head With Valve Seal (includes  10-14) for Troybilt TB4000 - Part 182306

    Engine parts diagram

    Cylinder Head With Valve Seal (includes 10-14)

    Part #182306

    The manufacturer no longer makes this part, and there's no substitute part

  • Valve Stem Seal for Troybilt TB4000 - Part 182307

    #NI03

    All parts diagram

    Valve Stem Seal

    Part #182307

    The manufacturer no longer makes this part, and there's no substitute part

  • Washer for Troybilt TB4000 - Part 147490

    Boom and trimmer diagram

    Washer

    Part #147490

    The manufacturer no longer makes this part, and there's no substitute part

  • Retainer for Troybilt TB4000 - Part 612026

    Boom and trimmer diagram

    Retainer

    Part #612026

    The manufacturer no longer makes this part, and there's no substitute part

  • Grip for Troybilt TB4000 - Part 180866

    Boom and trimmer diagram

    Grip

    Part #180866

    The manufacturer no longer makes this part, and there's no substitute part

  • Stud for Troybilt TB4000 - Part 181011

    Engine parts diagram

    Stud

    Part #181011

    The manufacturer no longer makes this part, and there's no substitute part

  • Blade Assembly for Troybilt TB4000 - Part 682061

    Boom and trimmer diagram

    Blade Assembly

    Part #682061

    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

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

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

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.

Line trimmer: Preventing fuel vapor lock in hot summer conditions

Line trimmer: Preventing fuel vapor lock in hot summer conditions

Vapor lock can stop your trimmer cold in summer heat. Learn how to prevent it and keep your lawn looking sharp...

Straight shaft vs curved shaft trimmers: What’s the difference?

Straight shaft vs curved shaft trimmers: What’s the difference?

Trying to decide between a straight shaft and curved shaft trimmer? This guide compares both designs to help you underst...

Can you cut grass with a weed whacker?

Can you cut grass with a weed whacker?

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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