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MTD
Gas Line Trimmer

Model # 41ACETBC799 Official MTD trimmer

Here are the diagrams and repair parts for Official MTD 41ACETBC799 trimmer, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 38 parts  |
Washer 791-182413
#21

Drive shaft housing/handle diagram

Washer

Part #791-182413

Replaced by #736-0169

?
Manufacturer substitution
This part replaces 791-182413. Substitute parts can look different from the original.
This item is not returnable
$4.89
In Stock
Line Trimmer Cutting Head 753-05165
#20

Drive shaft housing/handle diagram

Line trimmer cutting head

Part #753-05165

Replaced by #753-08193

?
Manufacturer substitution
This part replaces 753-05165. Substitute parts can look different from the original.
$19.40
In Stock
Line Trimmer Impeller 753-05276
#18

Drive shaft housing/handle diagram

Line trimmer impeller

Part #753-05276

$44.58
In Stock
Drive Shaft 753-05258
#10

Drive shaft housing/handle diagram

Drive shaft

Part #753-05258

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

Trigger 791-182318
#7

Motor/housing diagram

Trigger

Part #791-182318

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

Bolt Assembly 791-181617
#7

Drive shaft housing/handle diagram

Bolt assembly

Part #791-181617

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

Clamp Assembly 753-1190
#4

Drive shaft housing/handle diagram

Clamp assembly

Part #753-1190

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

Cool Fan 791-180155
#11

Motor/housing diagram

Cool fan

Part #791-180155

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

Adjustment Knob 791-181981
#5

Drive shaft housing/handle diagram

Adjustment knob

Part #791-181981

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

Screw 791-145569
#2

Motor/housing diagram

Screw

Part #791-145569

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

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

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Why won't my gas line trimmer start?

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

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Why does my gas line trimmer run rough?

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

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Why does my gas line trimmer leak gas?

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

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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.

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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…

Read more
Repair difficulty
Time required
 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 …

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Repair difficulty
Time required
 15 minutes or less
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…

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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.

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Top 10 electric lawn and garden tools for 2023

Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Grass line trimmer maintenance checklist

Grass line trimmer maintenance checklist

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this help…

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