Lawn-Boy
Gas Walk-Behind Mower

Model #10324-8900001 & UP Official Lawn-Boy walk-behind lawn mower

Here are the diagrams and repair parts for Lawn-Boy 10324-8900001-UP walk-behind lawn mower, as well as links to manuals and error code tables, if available.

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

Showing 10 of 213 parts

Lawn Mower Recoil Starter Rope Guide (replaces 46-8080, 93-7383, 95-4457, 98-2684)#16

Handle assembly Diagram

Rope guide

Part #93-7383
Replaced by #86-9671
?
Manufacturer substitution
This part replaces 93-7383. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
$7.09 | 
12% OFF 
Phone Price: $8.09
Lawn Mower Handle Knob#3

Handle assembly Diagram

Lawn mower handle knob

Part #98-7134
This item is not returnable
In Stock
$2.22
Lawn Mower Wheel Assembly#28

Housing assembly Diagram

Wheel tire

Part #684776
Replaced by #684776
?
Manufacturer substitution
This part replaces 684776. Substitute parts can look different from the original.
This item is not returnable
In Stock
$41.79 | 
11% OFF 
Phone Price: $46.79
Lawn Mower Transmission Guide#6

Housing assembly Diagram

Lawn mower transmission guide

Part #95-1732
This item is not returnable
In Stock
$2.16
Screw#60

Engine assembly Diagram

Screw

Part #98-1394
This item is not returnable
In Stock
$5.05
Gasket#41

Engine assembly Diagram

Gasket

Part #95-7613
This item is not returnable
In Stock
$3.51
Primer Hose#9

Engine assembly Diagram

Primer hose

Part #95-1861
In Stock
$13.40
Gas Tank#4

Engine and blade assembly Diagram

Gas tank

Part #95-1897
In Stock
$62.11
Rivet#27

Engine assembly Diagram

Rivet

Part #3290-459
Replaced by #3290-459
?
Manufacturer substitution
This part replaces 3290-459. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.16
Lawn & Garden Equipment Engine Carburetor Primer Bulb#9

Engine and blade assembly Diagram

Primer

Part #66-7460
Replaced by #66-7460
?
Manufacturer substitution
This part replaces 66-7460. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.47

Symptoms for gas walk-behind mowers

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

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: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

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.

March 1, 2016
By Lyle Weischwill
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 cracked.

Repair difficulty
Time required
 15 minutes or less
March 1, 2016
By Lyle Weischwill
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

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to replace this tiny but essential part.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all walk-behind mowers

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

February 11, 2023

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By Lyle Weischwill

Learn about the top 10 must-have electric lawn & garden tools for 2023

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

By Lyle Weischwill

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.

August 11, 2022

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

By Lyle Weischwill

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