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Weed Eater
Gas Walk-Behind Mower

Model # 386090 Official Weed Eater rotary lawn mower

Here are the diagrams and repair parts for Official Weed Eater 386090 rotary lawn mower, as well as links to manuals and error code tables, if available.

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  • 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”.

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

Model diagram and schematic

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ALL PARTS
Showing 10 of 49 parts  |
Lock Nut 83923
#37

Engine/wheels/housing/handle diagram

Lock nut

Part #83923

Replaced by #532409149

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Manufacturer substitution
This part replaces 83923. Substitute parts can look different from the original.
BEST SELLER
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$5.31 | 
16% OFF Phone Price : $6.31
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Washer 61537
#28

Engine/wheels/housing/handle diagram

Washer

Part #61537

Replaced by #596134901

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Manufacturer substitution
This part replaces 61537. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$3.98 | 
20% OFF Phone Price : $4.98
In Stock
Lock Nut 751592
#43

Engine/wheels/housing/handle diagram

Lock nut

Part #751592

Replaced by #596322601

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Manufacturer substitution
This part replaces 751592. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.11
In Stock
Lawn Mower Blade Adapter 850977
#25

Engine/wheels/housing/handle diagram

Lawn mower blade adapter

Part #850977

Replaced by #581547901

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Manufacturer substitution
This part replaces 850977. Substitute parts can look different from the original.
BEST SELLER
$18.44 | 
10% OFF Phone Price : $20.44
In Stock
Height Spacer 146630
#29

Engine/wheels/housing/handle diagram

Height spacer

Part #146630

Replaced by #532401629

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Manufacturer substitution
This part replaces 146630. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Upstop Bracket 850733X004
#8

Engine/wheels/housing/handle diagram

Upstop bracket

Part #850733X004

Replaced by #532850733

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Manufacturer substitution
This part replaces 850733X004. Substitute parts can look different from the original.
This item is not returnable
$8.54
In Stock
Lawn & Garden Equipment Lock Nut 73800400
#17

Engine/wheels/housing/handle diagram

Lawn & garden equipment lock nut

Part #73800400

Replaced by #582478602

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Manufacturer substitution
This part replaces 73800400. Substitute parts can look different from the original.
This item is not returnable
$2.64 | 
27% OFF Phone Price : $3.64
In Stock
Handle Bolt 191574
#7

Engine/wheels/housing/handle diagram

Handle bolt

Part #191574

Replaced by #532191574

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Manufacturer substitution
This part replaces 191574. Substitute parts can look different from the original.
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Hndl.knob.bl 189713X428
#14

Engine/wheels/housing/handle diagram

Hndl.knob.bl

Part #189713X428

Replaced by #532185577

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Manufacturer substitution
This part replaces 189713X428. Substitute parts can look different from the original.
$10.64 | 
16% OFF Phone Price : $12.64
In Stock
Spring 700331X004
#31

Engine/wheels/housing/handle diagram

Spring

Part #700331X004

Replaced by #532401621

?
Manufacturer substitution
This part replaces 700331X004. Substitute parts can look different from the original.
$8.54
In Stock

Symptoms for gas walk-behind mowers

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

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Why won't my lawn mower move?

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

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Why does my lawn mower run rough?

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

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Why does my lawn mower stall?

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

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Why does my lawn mower vibrate a lot?

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

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Why won't my lawn mower start?

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

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Why does my lawn mower cut unevenly?

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

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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.

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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…

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Read more
Repair difficulty
Time required
 30 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.

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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…

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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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