MTD
Gas Line Trimmer

Model #41ADZ41C799 MTD trimmer

Here are the repair parts and diagrams for your MTD 41ADZ41C799 trimmer. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

Save to my profileOwner’s manual

Showing 10 of 62 parts

Lawn & Garden Equipment Engine Air Filter

#26

Short block/fuel tank Diagram

Lawn & garden equipment engine air filter

Part #753-05254
This item is not returnable
$4.56
29% OFFMSRP:$6.40

In Stock

Lawn & Garden Equipment Engine Start/Stop Switch

#4

Shaft/shield/handle Diagram

Lawn & garden equipment engine start/stop switch

Part #791-182405
This item is not returnable
$7.00
36% OFFMSRP:$11.00

In Stock

Line Trimmer Fuel Tank Assembly

#28

Short block/fuel tank Diagram

$14.50
9% OFFMSRP:$16.00

In Stock

Line Trimmer Cutting Head Assembly

#19

Shaft/shield/handle Diagram

$16.67
12% OFFMSRP:$19.00

In Stock

Line Trimmer Flexible Drive Shaft

#13

Shaft/shield/handle Diagram

$30.76

In Stock

Line Trimmer Spool Cap

#20

Shaft/shield/handle Diagram

Line trimmer spool cap

Part #753-06849
This item is not returnable
$3.40
23% OFFMSRP:$4.40

In Stock

Line Trimmer Throttle Control Assembly

#5

Shaft/shield/handle Diagram

$13.34
17% OFFMSRP:$16.00

In Stock

Line Trimmer Throttle Housing Assembly

#1

Shaft/shield/handle Diagram

$8.35

In Stock

Line Trimmer Throttle Trigger Spring

#3

Shaft/shield/handle Diagram

Line trimmer throttle trigger spring

Part #791-182690
This item is not returnable
$5.08
21% OFFMSRP:$6.40

In Stock

Line Trimmer Coupler Split Boom

#9

Shaft/shield/handle Diagram

Line trimmer coupler split boom

Part #753-06793
This item is not returnable
$5.04
7% OFFMSRP:$5.40

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
 30 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
 30 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
 30 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.