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MTD
Gas Line Trimmer

Model # 41BDY20C901 Official MTD trimmer

Here are the diagrams and repair parts for Official MTD 41BDY20C901 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 59 parts  |
Line Trimmer Spool Case And Eyelet 753-04284
#18

Handle/shield/spool diagram

Line trimmer spool case and eyelet

Part #753-04284

$32.04 | 
16% OFF Phone Price : $38.04
In Stock
Line Trimmer Spool Spring (replaces 791-610317, 791-bq01642) 791-610317B
#20

Handle/shield/spool diagram

Line trimmer spool spring (replaces 791-610317, 791-bq01642)

Part #791-610317B

$16.62 | 
11% OFF Phone Price : $18.62
In Stock
Yard-man Lawn & Garden Equipment Screw (replaces Gw-9733) 791-181862
#22

Short block/fuel tank/muffler diagram

Yard-man lawn & garden equipment screw (replaces gw-9733)

Part #791-181862

This item is not returnable
$5.81 | 
15% OFF Phone Price : $6.81
In Stock
Yard Machines Lawn & Garden Equipment Engine Air Filter 791-180350B
#2

Short block/fuel tank/muffler 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
Line Trimmer Shaft Coupler 791-181616B
#9

Handle/shield/spool diagram

Line trimmer shaft coupler

Part #791-181616B

Replaced by #753-1190

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Manufacturer substitution
This part replaces 791-181616B. Substitute parts can look different from the original.
This item is not returnable
$31.62 | 
16% OFF Phone Price : $37.62
In Stock
Line Trimmer Guard Mounting Screw 753-04282
#15

Handle/shield/spool diagram

Line trimmer guard mounting screw

Part #753-04282

This item is not returnable
$29.20 | 
17% OFF Phone Price : $35.20
In Stock
Line Trimmer Guard Assembly 753-04283
#16

Handle/shield/spool diagram

Line trimmer guard assembly

Part #753-04283

Get free shipping with Automatic Reorder

$52.10 | 
10% OFF Phone Price : $58.10
In Stock
Line Trimmer Drive Shaft Housing (replaces 753-04346, 753-04347, 753-04351) 753-04344
#6

Handle/shield/spool 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
Yard-man Lawn & Garden Equipment Engine Air Filter Cover 753-04511
#1

Short block/fuel tank/muffler diagram

Yard-man lawn & garden equipment engine air filter cover

Part #753-04511

$39.59 | 
13% OFF Phone Price : $45.59
In Stock
Ryobi Lawn & Garden Equipment Engine Fuel Tank Cap (replaces 753-1187) 791-182612
#16

Short block/fuel tank/muffler diagram

Ryobi lawn & garden equipment engine fuel tank cap (replaces 753-1187)

Part #791-182612

This item is not returnable
$27.11 | 
18% OFF Phone Price : $33.11
In Stock

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

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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 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 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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Solving 3 common problems with line trimmer cutting lines

Solving 3 common problems with line trimmer cutting lines

Follow these tips to prevent the cutting line on your grass line trimmer from breaking or feeding out too much or too li…

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How to replace a line trimmer fuel line video

How to replace a line trimmer fuel line video

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

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How to tune up a grass line trimmer video

How to tune up a grass line trimmer video

Tune of your grass line trimmer, following the steps in this video.…

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