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Troybilt TB90BC 2-cycle gas trimmer/brushcutter

Troybilt TB90BC 2-cycle gas trimmer/brushcutter Parts

Here are the diagrams and repair parts for Troybilt TB90BC 2-cycle gas trimmer/brushcutter, as well as links to manuals and error code tables, if available.

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Browse Parts for TB90BC Line Trimmers

  • Carburetor for Troybilt TB90BC - Part 753-04338

    Engine parts diagram

    Carburetor

    In Stock
    $69.62
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  • Troybilt Line Trimmer Cutting Blade for Troybilt TB90BC - Part 791-145873B

    Handle/throttle housing/shield diagram

    Blade

    Part #791-145873

    Replaced by #791-145873B

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    Manufacturer substitution
    This part replaces 791-145873. Substitute parts can look different from the original.
    In Stock
    $68.20
    8% OFF Phone Price : $74.20Info Icon
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  • Crankcase for Troybilt TB90BC - Part 753-04369

    Engine parts diagram

    Crankcase

    Part #753-04369

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

  • Screw for Troybilt TB90BC - Part 791-180351

    Engine parts diagram

    Screw

    Part #791-180351

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

  • Mounting Hardware for Troybilt TB90BC - Part 791-182195

    Handle/throttle housing/shield diagram

    Mounting Hardware

    Part #791-182195

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

  • Gear for Troybilt TB90BC - Part 791-182198

    Handle/throttle housing/shield diagram

    Gear

    Part #791-182198

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

  • Knob for Troybilt TB90BC - Part 791-180814

    Handle/throttle housing/shield diagram

    Knob

    Part #791-180814

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

  • Lawn & Garden Equipment Engine Carburetor Mounting Bracket for Troybilt TB90BC - Part 753-1196

    Engine parts diagram

    Lawn & Garden Equipment Engine Carburetor Mounting Bracket

    Part #753-1196

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

  • Gasket for Troybilt TB90BC - Part 753-04159

    Engine parts diagram

    Gasket

    Part #753-04159

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

  • Repair Kit for Troybilt TB90BC - Part 791-180091

    #NI02

    All parts diagram

    Repair Kit

    Part #791-180091

    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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