Craftsman
Gas Line Trimmer

Model #154740940 Official Craftsman gas line trimmer

Here are the diagrams and repair parts for Craftsman 154740940 gas line 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

    Showing 10 of 44 parts

    Line Trimmer Cutting Head#NI06

    Body parts Diagram

    Line trimmer cutting head

    Part #199023000066
    BEST SELLER
    In Stock
    $12.89 | 
    16% OFF 
    Phone Price: $15.29
    Line Trimmer Air Filter#NI32

    Engine parts Diagram

    Line trimmer air filter

    Part #202999001663
    BEST SELLER
    This item is not returnable
    In Stock
    $2.49 | 
    29% OFF 
    Phone Price: $3.49
    Line Trimmer Drive Shaft, Lower#NI12

    Body parts Diagram

    Line trimmer drive shaft, lower

    Part #199999001284
    BEST SELLER
    In Stock
    $24.79 | 
    17% OFF 
    Phone Price: $29.79
    Line Trimmer Recoil Starter Assembly#NI40

    Engine parts Diagram

    Line trimmer recoil starter assembly

    Part #199999001279
    Replaced by #199999001426
    ?
    Manufacturer substitution
    This part replaces 199999001279. Substitute parts can look different from the original.
    BEST SELLER
    This item is not returnable
    In Stock
    $6.56
    Line Trimmer Gearbox#NI13

    Body parts Diagram

    Line trimmer gearbox

    Part #199999001283
    BEST SELLER
    In Stock
    $28.49 | 
    15% OFF 
    Phone Price: $33.49
    Line Trimmer On/Off Switch#NI25

    Body parts Diagram

    Line trimmer on/off switch

    Part #207180200010
    Replaced by #207180200023
    ?
    Manufacturer substitution
    This part replaces 207180200010. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
    BREATH PIPE#NI33

    Engine parts Diagram

    Breath pipe

    Part #202094000222
    This item is not returnable
    In Stock
    $2.16
    STARTER HNDL#NI42

    Engine parts Diagram

    Starter hndl

    Part #202999001668
    This item is not returnable
    In Stock
    $2.16
    Line Trimmer Handle Knob#NI17

    Body parts Diagram

    Line trimmer handle knob

    Part #202028000069
    This item is not returnable
    In Stock
    $2.16
    CONTROL SLDR#NI35

    Engine parts Diagram

    Control sldr

    Part #861590300411
    This item is not returnable
    In Stock
    $2.16

    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.