Lawn-Boy
Gas Walk-Behind Mower

Model # 10331-8900001 AND UP Official Lawn-Boy silver pro series mower

Here are the diagrams and repair parts for Official Lawn-Boy 10331-8900001-AND-UP silver pro series mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 204 parts  |

Rope Guide 93-7383
#16

Handle assembly diagram

Rope guide

Part #93-7383

Replaced by #86-9671

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Manufacturer substitution
This part replaces 93-7383. Substitute parts can look different from the original.
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This item is not returnable
$7.09
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In Stock
Stop Nut 3296-29
#3

Housing assembly diagram

Stop nut

Part #3296-29

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

Pivot Stop 92-5412
#8

Handle assembly diagram

Pivot stop

Part #92-5412

Replaced by #107-0757

?
Manufacturer substitution
This part replaces 92-5412. Substitute parts can look different from the original.
This item is not returnable
In Stock
Belt, 21-in 612543
#18

Engine and blade assembly diagram

Belt, 21-in

Part #612543

Replaced by #612543-03

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Manufacturer substitution
This part replaces 612543. Substitute parts can look different from the original.

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$38.29
20% OFF MSRP : $48.00
In Stock
Lawn Mower Screw 614697
#2

Handle assembly diagram

Lawn mower screw

Part #614697

This item is not returnable
In Stock
Compression Spring 65-4720
#17

Rear axle assembly diagram

Compression spring

Part #65-4720

This item is not returnable
In Stock
Brake Mounting Plate 84-7820
#26

Engine assembly diagram

Brake mounting plate

Part #84-7820

In Stock
Washer 40-1940
#18

Housing assembly diagram

Washer

Part #40-1940

This item is not returnable
In Stock
Strip 99-1521
#25

Engine and blade assembly diagram

Strip

Part #99-1521

In Stock
Nut-jam, Locking 610358
#13

Rear axle assembly diagram

Nut-jam, locking

Part #610358

This item is not returnable
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.

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

Tapping into a new feature in 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

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