MTD
Gas Line Trimmer

Model #41CDZ20C799 MTD trimmer

Here are the diagrams and repair parts for MTD 41CDZ20C799 trimmer, as well as links to manuals and error code tables, if available.


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    Showing 10 of 49 parts

    Line Trimmer Cutting Head Assembly

    #14

    Throttle housing/shaft/shield Diagram

    $13.08 | 
    7% OFF MSRP:$14.00

    In Stock

    Line Trimmer Fuel Tank Assembly

    #20

    Short block/fuel tank/muffler Diagram

    $10.00 | 
    9% OFF MSRP:$11.00

    In Stock

    Lawn & Garden Equipment Engine Carburetor Mount Gasket

    #17

    Short block/fuel tank/muffler Diagram

    Lawn & garden equipment engine carburetor mount gasket

    Part #753-06253
    This item is not returnable
    $2.80

    In Stock

    Line Trimmer Air Filter

    #19

    Short block/fuel tank/muffler Diagram

    Line trimmer air filter

    Part #753-06417
    This item is not returnable
    $2.58

    In Stock

    Line Trimmer Cutting Line

    #NI01

    All parts Diagram

    Line trimmer cutting line

    Part #753-06767
    This item is not returnable
    $7.14 | 
    15% OFF MSRP:$8.40

    In Stock

    Line Trimmer Spark Plug

    #5

    Short block/fuel tank/muffler Diagram

    Line trimmer spark plug

    Part #753-06847
    This item is not returnable
    $2.87 | 
    33% OFF MSRP:$4.30

    In Stock

    Line Trimmer Cutting Head Cover

    #16

    Throttle housing/shaft/shield Diagram

    Line trimmer cutting head cover

    Part #753-06765
    This item is not returnable
    $4.40 | 
    20% OFF MSRP:$5.50

    In Stock

    Lawn & Garden Equipment Clutch Assembly

    #23

    Short block/fuel tank/muffler Diagram

    $18.26 | 
    9% OFF MSRP:$20.00

    In Stock

    Lawn & Garden Equipment O-Ring

    #15

    Short block/fuel tank/muffler Diagram

    Lawn & garden equipment o-ring

    Part #753-06185
    This item is not returnable
    $2.80

    In Stock

    Line Trimmer Throttle Trigger

    #3

    Throttle housing/shaft/shield Diagram

    $9.87

    In Stock

    Symptoms for gas line trimmers

    Choose a symptom to see related grass line trimmer repairs.

    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
    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 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
    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 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

    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.

    June 1, 2016

    Tips for a hard-to-start grass line trimmer

    By Sears PartsDirect staff

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

    June 1, 2015

    How to replace a line trimmer fuel line video

    By Sears PartsDirect staff

    Follow the steps in this video to replace a leaking fuel line in a line trimmer.

    March 1, 2015

    Easy DIY grass line trimmer repairs

    By Sears PartsDirect staff

    Learn about some very easy do-it-yourself repairs for a grass line trimmer.