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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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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 54 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 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 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 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 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
Kmart Line Trimmer Throttle Trigger (replaces 791-00042, 791-00058) 753-04119
#3

Handle/shield/spool diagram

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

Part #753-04119

$10.09 | 
17% OFF Phone Price : $12.09
In Stock
Leaf Blower Shoulder Strap 791-682075B

#NI02

All parts diagram

Leaf blower shoulder strap

Part #791-682075B

Get free shipping with Automatic Reorder

$52.33
In Stock
Kmart Line Trimmer Throttle Trigger Spring 791-182690
#4

Handle/shield/spool 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
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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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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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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