Lawn-Boy
Gas Walk-Behind Mower

Model # 680544 Official Lawn-Boy lawn mower

Here are the diagrams and repair parts for Official Lawn-Boy 680544 lawn mower, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 252 parts  |

Shield 614315
#40

Housing and shroud group diagram

Shield

Part #614315

Replaced by #614315

?
Manufacturer substitution
This part replaces 614315. Substitute parts can look different from the original.
In Stock
Screw 612428
Screw

Part #612428

Replaced by #612428

?
Manufacturer substitution
This part replaces 612428. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw 610345
#1

Drive group diagram

Screw

Part #610345

Replaced by #610345

?
Manufacturer substitution
This part replaces 610345. Substitute parts can look different from the original.
In Stock
Decal 610640
#13

Housing and shroud group diagram

Decal

Part #610640

Replaced by #43-8480

?
Manufacturer substitution
This part replaces 610640. Substitute parts can look different from the original.
In Stock
Muffler Cover 682876
#18

Housing and shroud group diagram

Muffler cover

Part #682876

Replaced by #682876

?
Manufacturer substitution
This part replaces 682876. Substitute parts can look different from the original.
In Stock
Cap Screw 611393
#15

Engine group diagram

Cap screw

Part #611393

Replaced by #611393

?
Manufacturer substitution
This part replaces 611393. Substitute parts can look different from the original.
In Stock
Toe Bar 608175
#34

Housing and shroud group diagram

Toe bar

Part #608175

Replaced by #608175

?
Manufacturer substitution
This part replaces 608175. Substitute parts can look different from the original.
In Stock
Bracket 611192
#45

Engine group diagram

Bracket

Part #611192

Replaced by #611192

?
Manufacturer substitution
This part replaces 611192. Substitute parts can look different from the original.
In Stock
Half Pulley 611837
#12

Drive group diagram

Half pulley

Part #611837

Replaced by #611837

?
Manufacturer substitution
This part replaces 611837. Substitute parts can look different from the original.
In Stock
Washer 603620
#32

Housing and shroud group diagram

Washer

Part #603620

Replaced by #603620

?
Manufacturer substitution
This part replaces 603620. Substitute parts can look different from the original.
In Stock

Symptoms for gas walk-behind mowers

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

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

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

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

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

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

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

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.

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…

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. …

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…

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.

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.…

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.…

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.…