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Bolens
Gas Line Trimmer

Model # 41BD250G163 Official Bolens 2-cycle gas trimmer

Here are the diagrams and repair parts for Official Bolens 41BD250G163 2-cycle gas 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 102 parts  |
Blade 791-145873
#32

Throttle housing/driveshaft/blade diagram

Blade

Part #791-145873

Replaced by #791-145873B

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Manufacturer substitution
This part replaces 791-145873. Substitute parts can look different from the original.

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In Stock
Housing 791-147486
#8

Throttle housing/driveshaft/blade diagram

Housing

Part #791-147486

The manufacturer no longer makes this part, and there's no substitute part

Repair Kit 791-180091

#NI03

All parts diagram

Repair kit

Part #791-180091

The manufacturer no longer makes this part, and there's no substitute part

Screw 791-181811
#11

Throttle housing/driveshaft/blade diagram

Screw

Part #791-181811

The manufacturer no longer makes this part, and there's no substitute part

Gasket 791-610675
#9

Fuel tank/crankcase/flywheel diagram

Gasket

Part #791-610675

The manufacturer no longer makes this part, and there's no substitute part

Carburetor 753-04333
#8

Fuel tank/crankcase/flywheel diagram

Carburetor

Part #753-04333

The manufacturer no longer makes this part, and there's no substitute part

Gear Assembly 791-182194
#37

Throttle housing/driveshaft/blade diagram

Gear assembly

Part #791-182194

The manufacturer no longer makes this part, and there's no substitute part

Spool 791-683301
#27

Throttle housing/driveshaft/blade diagram

Spool

Part #791-683301

The manufacturer no longer makes this part, and there's no substitute part

Nut, Lh 791-181699
#34

Throttle housing/driveshaft/blade diagram

Nut, lh

Part #791-181699

The manufacturer no longer makes this part, and there's no substitute part

Housing 791-182192
#36

Throttle housing/driveshaft/blade diagram

Housing

Part #791-182192

The manufacturer no longer makes this part, and there's no substitute part

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

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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