Gas Walk-Behind Mower

Model # 10323-210000001 + UP Official Lawn-Boy gas lawn mower

Here are the diagrams and repair parts for Official Lawn-Boy 10323-210000001 + UP gas lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for
10323-210000001 + UP Walk-Behind Mowers
Lawn & Garden Equipment Engine Fuel Tank Cap 35355
#13

Engine and blade diagram

Lawn & garden equipment engine fuel tank cap

Part #35355

Replaced by #37845

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Manufacturer substitution
This part replaces 35355. Substitute parts can look different from the original.
$9.59
9% OFF Phone Price : $10.59
In Stock
Lawn Mower Washer 614426
#19

Rear axle diagram

Lawn mower washer

Part #614426

This item is not returnable
In Stock
Lawn Mower 21-in Deck Mulching Blade 612543-03
#2

Engine and blade diagram

Lawn mower 21-in deck mulching blade

Part #612543-03

Get free shipping with Automatic Reorder

$31.17
16% OFF Phone Price : $37.17
In Stock
Lawn Mower Screw 614697
#19

Handle and controls diagram

Lawn mower screw

Part #614697

This item is not returnable
In Stock
Lawn Mower Wheel Assembly 684776
#36

Housing, handle bracke and wheel diagram

Lawn mower wheel assembly

Part #684776

This item is not returnable
$37.96
14% OFF Phone Price : $43.96
In Stock
Toro Cover-wheel 94-1609
#18

Rear axle diagram

Toro cover-wheel

Part #94-1609

This item is not returnable
In Stock
Exhaust Gasket 95-1778
#35

Engine - 98-1393 diagram

Exhaust gasket

Part #95-1778

In Stock
Ring-klip 65-2720
#3

Rear axle diagram

Ring-klip

Part #65-2720

This item is not returnable
In Stock
Cable Screw 314576
#18

Engine and blade diagram

Cable screw

Part #314576

This item is not returnable
In Stock
Cable Bracket 100-5983
#3

Handle and controls diagram

Cable bracket

Part #100-5983

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.…

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Top questions about Sears and Sears PartsDirect

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