Lawn-Boy
Gas Walk-Behind Mower

Model # 10335-9900001 AND UP Official Lawn-Boy silver series mower

Here are the diagrams and repair parts for Official Lawn-Boy 10335-9900001-AND-UP silver 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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Showing 10 of 260 parts  |

Trailing-shi 92-8647
#38

Housing and wheel assembly diagram

Trailing-shi

Part #92-8647

In Stock
Ring-klip 65-2720
#3

Wheel assembly diagram

Ring-klip

Part #65-2720

This item is not returnable
In Stock
Shaft-int 614696
#16

Gearcase assembly diagram

Shaft-int

Part #614696

In Stock
Baffle Plate 92-7731
#16

Housing and wheel assembly diagram

Baffle plate

Part #92-7731

In Stock
Pin-groove 3285-19
#3

Gearcase assembly diagram

Pin-groove

Part #3285-19

This item is not returnable
In Stock
Washer 40-1940
#18

Housing and wheel assembly diagram

Washer

Part #40-1940

This item is not returnable
In Stock
Upper Handle 95-1713-05
#13

Handle assembly diagram

Upper handle

Part #95-1713-05

In Stock
Grommet 605120
#5

Housing and wheel assembly diagram

Grommet

Part #605120

This item is not returnable
In Stock
Cable 98-1560
#18

Handle assembly diagram

Cable

Part #98-1560

In Stock
Bushing 70-9760
#8:3

Wheel assembly diagram

Bushing

Part #70-9760

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

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

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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