Snapper
Gas Walk-Behind Mower

Model # SPA521-SERIES 3 Official Snapper mower

Here are the diagrams and repair parts for Official Snapper SPA521-SERIES-3 mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 310 parts  |

Filter 7014359
#8

Fuel tank diagram

Filter

Part #7014359

Replaced by #394358S

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Manufacturer substitution
This part replaces 7014359. Substitute parts can look different from the original.
BEST SELLER
$6.70
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In Stock
Hose 7076272
#11

Fuel tank diagram

Hose

Part #7076272

Replaced by #791766

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Manufacturer substitution
This part replaces 7076272. Substitute parts can look different from the original.
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$9.31
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Hose 7032956
#9

Fuel tank diagram

Hose

Part #7032956

Replaced by #791766

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Manufacturer substitution
This part replaces 7032956. Substitute parts can look different from the original.
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$9.31
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Clamp 7012222
Clamp

Part #7012222

Replaced by #791850

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Manufacturer substitution
This part replaces 7012222. Substitute parts can look different from the original.
This item is not returnable
$4.74
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Hwst, 1/4c X 7091819
Hwst, 1/4c x

Part #7091819

Replaced by #703054

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Manufacturer substitution
This part replaces 7091819. Substitute parts can look different from the original.
This item is not returnable
$7.49
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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
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In Stock
Slw, .445x.7 7091301
#20

Rear deck diagram

Slw, .445x.7

Part #7091301

Replaced by #704007

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Manufacturer substitution
This part replaces 7091301. Substitute parts can look different from the original.
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
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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
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In Stock
Hfln 3/8 7091619
#24

36" mower deck (adjustable height) diagram

Hfln 3/8

Part #7091619

Replaced by #703333

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Manufacturer substitution
This part replaces 7091619. Substitute parts can look different from the original.
This item is not returnable
$8.09
11% OFF Phone Price : $9.09
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.

Tapping into a new feature in the Search Bar on Sears PartsDirect

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…

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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