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Bolens
Gas Line Trimmer

Model # 41BD100G163 Official Bolens trimmer

Here are the diagrams and repair parts for Official Bolens 41BD100G163 trimmer, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 70 parts  |
Line Trimmer Spool Case And Eyelet 753-04284
#13

Boom and trimmer diagram

Line trimmer spool case and eyelet

Part #753-04284

$32.04 | 
16% OFF Phone Price : $38.04
In Stock
Bump Head Assembly 791-610317
#14

Boom and trimmer diagram

Bump head assembly

Part #791-610317

Replaced by #791-610317B

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Manufacturer substitution
This part replaces 791-610317. Substitute parts can look different from the original.
$16.62 | 
11% OFF Phone Price : $18.62
In Stock
Fuel Line 791-181168
#19

Engine diagram

Fuel line

Part #791-181168

Replaced by #791-181086

?
Manufacturer substitution
This part replaces 791-181168. Substitute parts can look different from the original.
$10.88 | 
16% OFF Phone Price : $12.88
In Stock
Line Trimmer Guard Mounting Screw 753-04282
#10

Boom and trimmer 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
#11

Boom and trimmer diagram

Line trimmer guard assembly

Part #753-04283

Get free shipping with Automatic Reorder

$52.10 | 
10% OFF Phone Price : $58.10
In Stock
Starter Handle 791-181079
#28

Engine diagram

Starter handle

Part #791-181079

Replaced by #631-04164B

?
Manufacturer substitution
This part replaces 791-181079. Substitute parts can look different from the original.
This item is not returnable
$6.19 | 
14% OFF Phone Price : $7.19
In Stock
Cartridge 791-153577

#NI06

All parts diagram

Cartridge

Part #791-153577

Replaced by #791-153577B

?
Manufacturer substitution
This part replaces 791-153577. Substitute parts can look different from the original.
This item is not returnable
$33.80 | 
15% OFF Phone Price : $39.80
In Stock
Yard Machines Lawn & Garden Equipment Carburetor Rebuild Kit 791-180090

#NI02

All parts diagram

Yard machines lawn & garden equipment carburetor rebuild kit

Part #791-180090

$81.22
In Stock
Tiller Clutch Cover Screw 791-181345
#47

Engine diagram

Tiller clutch cover screw

Part #791-181345

This item is not returnable
$5.28 | 
16% OFF Phone Price : $6.28
In Stock
Line Trimmer Throttle Cable 791-182068
#5

Boom and trimmer diagram

Line trimmer throttle cable

Part #791-182068

This item is not returnable
$23.36
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…

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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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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