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Snapper
Gas Walk-Behind Mower

Model # SPA521-SERIES 1-2 Official Snapper gas walk-behind lawn mower

Here are the diagrams and repair parts for Official Snapper SPA521-SERIES-1-2 gas walk-behind 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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Showing 10 of 408 parts  |
Fln 5/16-18 7091601
Fln 5/16-18

Part #7091601

Replaced by #703409

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Manufacturer substitution
This part replaces 7091601. Substitute parts can look different from the original.
$9.27 | 
10% OFF Phone Price : $10.27
In Stock
Nut, Hex Lock, 5/16c Esna Yz 7091298
Nut, hex lock, 5/16c esna yz

Part #7091298

Replaced by #703902

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Manufacturer substitution
This part replaces 7091298. Substitute parts can look different from the original.
This item is not returnable
$5.56 | 
15% OFF Phone Price : $6.56
In Stock
Belleville Washer 7016440
#8

Cutter housing diagram

Belleville washer

Part #7016440

Replaced by #7016440SM

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Manufacturer substitution
This part replaces 7016440. Substitute parts can look different from the original.
This item is not returnable
$13.49 | 
13% OFF Phone Price : $15.49
In Stock
Hcln 3/8 7091585
Hcln 3/8

Part #7091585

Replaced by #703347

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Manufacturer substitution
This part replaces 7091585. Substitute parts can look different from the original.
This item is not returnable
$8.69
In Stock
Hex Head Cap Screw 7091305
Hex head cap screw

Part #7091305

Replaced by #703589

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Manufacturer substitution
This part replaces 7091305. Substitute parts can look different from the original.
$7.69 | 
12% OFF Phone Price : $8.69
In Stock
Slw, .32x.58 7091315
Slw, .32x.58

Part #7091315

Replaced by #703116

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Manufacturer substitution
This part replaces 7091315. Substitute parts can look different from the original.
This item is not returnable
$5.79 | 
15% OFF Phone Price : $6.79
In Stock
Slw, .445x.7 7091301
#2

Rear deck diagram

Slw, .445x.7

Part #7091301

Replaced by #704007

?
Manufacturer substitution
This part replaces 7091301. Substitute parts can look different from the original.
$8.03
In Stock
Fw, .406x.98 7029040
#9

Tracking control diagram

Fw, .406x.98

Part #7029040

Replaced by #7029040YP

?
Manufacturer substitution
This part replaces 7029040. Substitute parts can look different from the original.
This item is not returnable
$5.40
In Stock
Decal 7027733
#9

Decals-instr./caution/wrng/dngr diagram

Decal

Part #7027733

Replaced by #7027733YP

?
Manufacturer substitution
This part replaces 7027733. Substitute parts can look different from the original.
$11.66
In Stock
Brkt, Hoc 7035279
#28

36" mower deck (adjustable height) diagram

Brkt, hoc

Part #7035279

Replaced by #7035279YP

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Manufacturer substitution
This part replaces 7035279. Substitute parts can look different from the original.
$32.24
In Stock

Symptoms for gas walk-behind mowers

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

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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 does my lawn mower cut unevenly?

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

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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 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 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 stall?

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

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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 rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

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Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

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

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

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Repair difficulty
Time required
 15 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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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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Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

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