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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
Inner Reel 791-147495
#30

Throttle housing/driveshaft/blade diagram

Inner reel

Part #791-147495

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

Shaft 791-612483
#26

Throttle housing/driveshaft/blade diagram

Shaft

Part #791-612483

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

Pulley 753-04232
#25

Fuel tank/crankcase/flywheel diagram

Pulley

Part #753-04232

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

Clamp 791-181813
#13

Throttle housing/driveshaft/blade diagram

Clamp

Part #791-181813

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

Spring 791-181599

#NI06

All parts diagram

Spring

Part #791-181599

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

Reed Assembly 791-684451
#13

Fuel tank/crankcase/flywheel diagram

Reed assembly

Part #791-684451

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

Housing 791-00040
#1

Throttle housing/driveshaft/blade diagram

Housing

Part #791-00040

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

Cover Assembly 791-182797
#36

Fuel tank/crankcase/flywheel diagram

Cover assembly

Part #791-182797

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

Line Trimmer Engine Gasket Set 753-04134

#NI01

All parts diagram

Line trimmer engine gasket set

Part #753-04134

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 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…

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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 …

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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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