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Snapper
Rear-Engine Riding Mower

Model # WM280921B Official Snapper rear-engine riding lawn mower

Here are the diagrams and repair parts for Official Snapper WM280921B rear-engine riding lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 462 parts  |
Filter 1-4359
#5

Fuel tank & operation seat diagram

Filter

Part #1-4359

Replaced by #394358S

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Manufacturer substitution
This part replaces 1-4359. Substitute parts can look different from the original.
BEST SELLER
$6.67 | 
13% OFF Phone Price : $7.67
In Stock
Clamp 1-2222
#6

Fuel tank & operation seat diagram

Clamp

Part #1-2222

Replaced by #791850

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Manufacturer substitution
This part replaces 1-2222. Substitute parts can look different from the original.
This item is not returnable
$4.74 | 
17% OFF Phone Price : $5.74
In Stock
Switch Cover 2-8989
#40

Main case diagram

Switch cover

Part #2-8989

The manufacturer no longer makes this part, and there's no substitute part

Spring 4-6782
#36

Belts, brakes, interlock diagram

Spring

Part #4-6782

The manufacturer no longer makes this part, and there's no substitute part

Assembly, Rear Tire & Rim (includes Items 2a, 3a,4) (25" Models) 5-2269
#1A

Wheels - rear diagram

Assembly, rear tire & rim (includes items 2a, 3a,4) (25" models)

Part #5-2269

The manufacturer no longer makes this part, and there's no substitute part

Washer 9/32" Flat 9-0055
Washer 9/32" flat

Part #9-0055

The manufacturer no longer makes this part, and there's no substitute part

Felt Seal 1-1032
#9

Wheels - front diagram

Felt seal

Part #1-1032

The manufacturer no longer makes this part, and there's no substitute part

Key (pair) 1-1138
Key (pair)

Part #1-1138

The manufacturer no longer makes this part, and there's no substitute part

Belt Guide 3-1855
#15

Rails, lift arms, cam lift diagram

Belt guide

Part #3-1855

The manufacturer no longer makes this part, and there's no substitute part

Washer, 1/2 Flat 9-0250
#8

Blade stop pedals diagram

Washer, 1/2 flat

Part #9-0250

The manufacturer no longer makes this part, and there's no substitute part

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

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…

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

Main causes: faulty battery, bad alternator…

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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 won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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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 does my riding mower creep in neutral?

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

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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 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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Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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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 a mandrel assembly on a riding lawn mower

How to replace a mandrel assembly on a riding lawn mower

Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…

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Repair difficulty
Time required
 30 minutes or less
How to replace the flywheel key on a riding lawn mower

How to replace the flywheel key on a riding lawn mower

If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…

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Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower ignition coil

How to replace a riding lawn mower ignition coil

If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…

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Repair difficulty
Time required
 30 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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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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How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

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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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