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Weed Eater
Rear-Engine Riding Mower

Model # 91728600 Official Weed Eater riding lawn mower

Here are the diagrams and repair parts for Official Weed Eater 91728600 riding 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.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 212 parts  |
Lawn Tractor Bolt 173984
#27

Mower deck diagram

Lawn tractor bolt

Part #173984

Replaced by #584953901

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Manufacturer substitution
This part replaces 173984. Substitute parts can look different from the original.
BEST SELLER
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$5.31 | 
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Lawn Tractor Ignition Switch 193350
#3

Electrical diagram

Lawn tractor ignition switch

Part #193350

Replaced by #532193350

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Manufacturer substitution
This part replaces 193350. Substitute parts can look different from the original.
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$24.60 | 
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Lawn Tractor Deflector Shield Hinge Rod 131491
#12

Mower deck diagram

Lawn tractor deflector shield hinge rod

Part #131491

Replaced by #595297001

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Manufacturer substitution
This part replaces 131491. Substitute parts can look different from the original.
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$7.05 | 
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In Stock
Lawn Tractor Bearing 3366R
#7

Steering diagram

Lawn tractor bearing

Part #3366R

Replaced by #532003366

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Manufacturer substitution
This part replaces 3366R. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
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In Stock
Lawn Tractor Belt Keeper 432520
#3

Mower deck diagram

Lawn tractor belt keeper

Part #432520

Replaced by #589676103

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Manufacturer substitution
This part replaces 432520. Substitute parts can look different from the original.
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$9.31 | 
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Grip Lever 196492X428
#35

Drive diagram

Grip lever

Part #196492X428

Replaced by #532411555

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Manufacturer substitution
This part replaces 196492X428. Substitute parts can look different from the original.
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$10.64 | 
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Thrust Bearing 1370H
#11

Drive diagram

Thrust bearing

Part #1370H

Replaced by #532001370

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Manufacturer substitution
This part replaces 1370H. Substitute parts can look different from the original.
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Screw, 5/16-18 X 3/4-in 17000512
Screw, 5/16-18 x 3/4-in

Part #17000512

Replaced by #532428867

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Manufacturer substitution
This part replaces 17000512. Substitute parts can look different from the original.
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Lawn & Garden Equipment Lock Nut 73800400
#37

Drive 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.
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$2.64 | 
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Lawn Tractor Screw 416358
#24

Chassis diagram

Lawn tractor screw

Part #416358

Replaced by #596321701

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Manufacturer substitution
This part replaces 416358. Substitute parts can look different from the original.
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This item is not returnable
$5.11
In Stock

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

View all

How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

Read more

Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

Read more

How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why is my riding mower leaking oil or gas?

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

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Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

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Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

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Most common repair guides to help fix your riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

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How to replace the starter motor on a riding lawn mower

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replac…

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Repair difficulty
Time required
 30 minutes or less
How to rebuild a riding lawn mower carburetor

How to rebuild a riding lawn mower carburetor

Get your sputtering carburetor running smoothly in 60 minutes.…

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Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

Read more
Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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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.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…

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