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MTD
Gas Line Trimmer

Model # 41AD578C799 Official MTD trimmer

Here are the diagrams and repair parts for Official MTD 41AD578C799 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 79 parts  |
Lawn & Garden Equipment Spark Plug 753-05255
#24

Cylinder/crankcase/fuel tank diagram

Lawn & garden equipment spark plug

Part #753-05255

Replaced by #794-00082

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Manufacturer substitution
This part replaces 753-05255. Substitute parts can look different from the original.
BEST SELLER
$10.05 | 
17% OFF Phone Price : $12.05
In Stock
Kmart Lawn & Garden Equipment Engine Air Filter 753-05254
#32

Cylinder/crankcase/fuel tank diagram

Kmart lawn & garden equipment engine air filter

Part #753-05254

BEST SELLER
$7.74 | 
11% OFF Phone Price : $8.74
In Stock
Kmart Line Trimmer Throttle Trigger (replaces 791-00042, 791-00058) 753-04119
#2

Drive shaft/handle/shield diagram

Kmart line trimmer throttle trigger (replaces 791-00042, 791-00058)

Part #753-04119

$10.09 | 
17% OFF Phone Price : $12.09
In Stock
Kmart Line Trimmer Air Filter 753-05831
#31

Cylinder/crankcase/fuel tank diagram

Kmart line trimmer air filter

Part #753-05831

This item is not returnable

Get free shipping with Automatic Reorder

$31.60 | 
16% OFF Phone Price : $37.60
In Stock
Screw 753-05253
#33

Cylinder/crankcase/fuel tank diagram

Screw

Part #753-05253

Replaced by #710-04517

?
Manufacturer substitution
This part replaces 753-05253. Substitute parts can look different from the original.
This item is not returnable
$8.30 | 
11% OFF Phone Price : $9.30
In Stock
Kmart Line Trimmer Throttle Trigger Spring 791-182690
#3

Drive shaft/handle/shield diagram

Kmart line trimmer throttle trigger spring

Part #791-182690

This item is not returnable
$12.30 | 
14% OFF Phone Price : $14.30
In Stock
Kmart Lawn & Garden Equipment Screw 791-182057
#13

Drive shaft/handle/shield diagram

Kmart lawn & garden equipment screw

Part #791-182057

This item is not returnable
$6.87 | 
13% OFF Phone Price : $7.87
In Stock
Yard Machines Lawn & Garden Equipment Screw 791-182195
#20

Drive shaft/handle/shield diagram

Yard machines lawn & garden equipment screw

Part #791-182195

This item is not returnable
$10.87 | 
16% OFF Phone Price : $12.87
In Stock
Kmart Lawn & Garden Equipment Engine Breather Tube 791-182379
#10

Cylinder/crankcase/fuel tank diagram

Kmart lawn & garden equipment engine breather tube

Part #791-182379

This item is not returnable
$7.17 | 
12% OFF Phone Price : $8.17
In Stock
Lawn & Garden Equipment Fuel Tank Cap 753-1229
#35

Cylinder/crankcase/fuel tank diagram

Lawn & garden equipment fuel tank cap

Part #753-1229

This item is not returnable
$30.58 | 
16% OFF Phone Price : $36.58
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…

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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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