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Lawn-Boy
Gas Walk-Behind Mower

Model # 680541 Official Lawn-Boy walk-behind lawn mower

Here are the diagrams and repair parts for Official Lawn-Boy 680541 walk-behind lawn mower, 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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Model diagram and schematic

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Showing 10 of 244 parts  |
Nut 608311
Nut

Part #608311

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

Belt, 21-in 683682
#22

Housing and shroud group diagram

Belt, 21-in

Part #683682

Replaced by #612543-03

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Manufacturer substitution
This part replaces 683682. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

$38.29 | 
20% OFF MSRP : $48.00
In Stock
Lock Washer 146258
#15

Handle group diagram

Lock washer

Part #146258

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

Handle 614241
#17

Handle group diagram

Handle

Part #614241

Replaced by #614241

?
Manufacturer substitution
This part replaces 614241. Substitute parts can look different from the original.
$192.80
In Stock
Retainer 611213
#48

Engine group diagram

Retainer

Part #611213

Replaced by #611213

?
Manufacturer substitution
This part replaces 611213. Substitute parts can look different from the original.
This item is not returnable
$3.63
In Stock
Retaining Ring 303712
#27

Engine group diagram

Retaining ring

Part #303712

Replaced by #303712

?
Manufacturer substitution
This part replaces 303712. Substitute parts can look different from the original.
This item is not returnable
$5.26
In Stock
Knob Spring 682231
#26

Housing and shroud group diagram

Knob spring

Part #682231

Replaced by #682231

?
Manufacturer substitution
This part replaces 682231. Substitute parts can look different from the original.
$36.64
In Stock
Screw 607809
#10

Housing and shroud group diagram

Screw

Part #607809

Replaced by #614677

?
Manufacturer substitution
This part replaces 607809. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Thrust Washer 608030
#30

Drive group diagram

Thrust washer

Part #608030

Replaced by #608030

?
Manufacturer substitution
This part replaces 608030. Substitute parts can look different from the original.
This item is not returnable
$3.74
In Stock
Pulley 609976
#2

Drive group diagram

Pulley

Part #609976

Replaced by #609976

?
Manufacturer substitution
This part replaces 609976. Substitute parts can look different from the original.
$123.28
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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