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MTD
Gas Line Trimmer

Model # 41AD770C799 Official MTD trimmer

Here are the diagrams and repair parts for Official MTD 41AD770C799 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 81 parts  |
Line Trimmer Fuel Line 753-05219
#17

Engine diagram

Line trimmer fuel line

Part #753-05219

This item is not returnable
$17.02 | 
11% OFF Phone Price : $19.02
In Stock
Yard Machines Line Trimmer Fuel Line (replaces 791-180243, 791-181168, 791-182495) 791-181086
#16

Engine diagram

Yard machines line trimmer fuel line (replaces 791-180243, 791-181168, 791-182495)

Part #791-181086

$10.88 | 
16% OFF Phone Price : $12.88
In Stock
Yard Machines Lawn & Garden Equipment Engine Air Filter 791-180350B
#2

Engine diagram

Yard machines lawn & garden equipment engine air filter

Part #791-180350B

This item is not returnable
$13.02 | 
13% OFF Phone Price : $15.02
In Stock
Kmart Line Trimmer Drive Shaft Coupler (replaces 753-08212, 791-160511, 791-181616b) 753-1190
#11

Boom and trimmer diagram

Kmart line trimmer drive shaft coupler (replaces 753-08212, 791-160511, 791-181616b)

Part #753-1190

This item is not returnable
$31.62 | 
16% OFF Phone Price : $37.62
In Stock
Mtd Line Trimmer Throttle Cable (replaces 743-04405, 746-04085, 753-04405, 753-04999) 746-04085A
#5

Boom and trimmer diagram

Mtd line trimmer throttle cable (replaces 743-04405, 746-04085, 753-04405, 753-04999)

Part #746-04085A

$16.40 | 
11% OFF Phone Price : $18.40
In Stock
Line Trimmer Cutting Head (replaces 753-05489) 753-05045
#24

Boom and trimmer diagram

Line trimmer cutting head (replaces 753-05489)

Part #753-05045

$82.26 | 
7% OFF Phone Price : $88.26
In Stock
Line Trimmer Drive Shaft Housing (replaces 753-04346, 753-04347, 753-04351) 753-04344
#6

Boom and trimmer diagram

Line trimmer drive shaft housing (replaces 753-04346, 753-04347, 753-04351)

Part #753-04344

$87.56 | 
6% OFF Phone Price : $93.56
In Stock
Handle 753-05011
#26

Engine diagram

Handle

Part #753-05011

Replaced by #631-04164B

?
Manufacturer substitution
This part replaces 753-05011. Substitute parts can look different from the original.
This item is not returnable
$6.19 | 
14% OFF Phone Price : $7.19
In Stock
Spacer Nut 791-180217
#40

Engine diagram

Spacer nut

Part #791-180217

Replaced by #712-0161

?
Manufacturer substitution
This part replaces 791-180217. Substitute parts can look different from the original.
This item is not returnable
$5.64 | 
15% OFF Phone Price : $6.64
In Stock
Muffler Screw 753-04620
#47

Engine diagram

Muffler screw

Part #753-04620

Replaced by #710-04188A

?
Manufacturer substitution
This part replaces 753-04620. Substitute parts can look different from the original.
This item is not returnable
$6.35 | 
14% OFF Phone Price : $7.35
In Stock

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 …

Read more
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…

Read more
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

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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