Troybilt
Gas Line Trimmer

Model #TB2000 Official Troybilt trimmer

Here are the diagrams and repair parts for Troybilt TB2000 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.

Owner’s manual

    Showing 10 of 99 parts

    Lawn & Garden Equipment Carburetor Gasket#6

    Engine parts Diagram

    Carburetor gasket

    Part #181709
    Replaced by #791-181709
    ?
    Manufacturer substitution
    This part replaces 181709. Substitute parts can look different from the original.
    BEST SELLER
    This item is not returnable
    In Stock
    $7.39 | 
    12% OFF 
    Phone Price: $8.39
    Lawn & Garden Equipment O-Ring#50

    Engine parts Diagram

    O-ring

    Part #181751
    Replaced by #791-181751
    ?
    Manufacturer substitution
    This part replaces 181751. Substitute parts can look different from the original.
    BEST SELLER
    This item is not returnable
    In Stock
    $6.69 | 
    13% OFF 
    Phone Price: $7.69
    Line Trimmer Primer Bulb

    #NI02

    All parts Diagram

    Bulb

    Part #181701
    Replaced by #791-181701
    ?
    Manufacturer substitution
    This part replaces 181701. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $16.69 | 
    11% OFF 
    Phone Price: $18.69
    Line Trimmer Throttle Trigger#3

    Boom and trimmer Diagram

    Trigger

    Part #181556
    Replaced by #791-181807
    ?
    Manufacturer substitution
    This part replaces 181556. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $14.89 | 
    12% OFF 
    Phone Price: $16.89
    Line Trimmer Drive Shaft Housing Clamp#14

    Boom and trimmer Diagram

    Clamp assembly

    Part #153597
    Replaced by #791-153597
    ?
    Manufacturer substitution
    This part replaces 153597. Substitute parts can look different from the original.
    In Stock
    $17.37
    Lawn & Garden Equipment Screw#17

    Boom and trimmer Diagram

    Screw

    Part #145569
    Replaced by #791-145569
    ?
    Manufacturer substitution
    This part replaces 145569. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.00
    Line Trimmer String Cut-Off Blade#19

    Boom and trimmer Diagram

    Blade assembly

    Part #682061
    Replaced by #791-682061
    ?
    Manufacturer substitution
    This part replaces 682061. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $16.03
    Line Trimmer Recoil Starter Spring#37

    Engine parts Diagram

    Spring

    Part #181739
    Replaced by #791-181739
    ?
    Manufacturer substitution
    This part replaces 181739. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $22.69 | 
    18% OFF 
    Phone Price: $27.69
    Line Trimmer Throttle Trigger Spring#4

    Boom and trimmer Diagram

    Spring

    Part #610314
    Replaced by #791-610314
    ?
    Manufacturer substitution
    This part replaces 610314. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.20
    Line Trimmer Retainer Ring#21

    Boom and trimmer Diagram

    Retainer

    Part #181458
    Replaced by #791-181458
    ?
    Manufacturer substitution
    This part replaces 181458. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $4.37

    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.

    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.

    June 1, 2016

    Tips for a hard-to-start grass line trimmer

    By Lyle Weischwill

    These tips may help you get your hard-to-start gas line trimmer running.

    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.