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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.
Owner’s manualBy Schematic
By Part
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Browse Parts forSPA521-SERIES 3 Walk-Behind Mowers
- #11
Fuel tank diagram
HosePart #7076272
Replaced by #791766
?Manufacturer substitutionThis part replaces 7076272. Substitute parts can look different from the original.$8.97 |10% OFF Phone Price : $9.97In Stock - #9
Fuel tank diagram
HosePart #7032956
Replaced by #791766
?Manufacturer substitutionThis part replaces 7032956. Substitute parts can look different from the original.$8.97 |10% OFF Phone Price : $9.97In Stock - Clamp
Part #7012222
Replaced by #791850
?Manufacturer substitutionThis part replaces 7012222. Substitute parts can look different from the original.This item is not returnable$4.74 |17% OFF Phone Price : $5.74In Stock - #8
Cutter housing diagram
Belleville washerPart #7016440
Replaced by #7016440SM
?Manufacturer substitutionThis part replaces 7016440. Substitute parts can look different from the original.This item is not returnable$13.49 |13% OFF Phone Price : $15.49In Stock - Hwst, 1/4c x
Part #7091819
Replaced by #703054
?Manufacturer substitutionThis part replaces 7091819. Substitute parts can look different from the original.This item is not returnable$7.49 |12% OFF Phone Price : $8.49In Stock - Hex head cap screw
Part #7091305
Replaced by #703589
?Manufacturer substitutionThis part replaces 7091305. Substitute parts can look different from the original.$7.69 |12% OFF Phone Price : $8.69In Stock - Lawn mower bushing
Part #7029258
Replaced by #7029258YP
?Manufacturer substitutionThis part replaces 7029258. Substitute parts can look different from the original.$15.37In Stock - #20
Rear deck diagram
Slw, .445x.7Part #7091301
Replaced by #704007
?Manufacturer substitutionThis part replaces 7091301. Substitute parts can look different from the original.$8.03In Stock - #20
48"/52"/61" mower deck (deck) diagram
BoltPart #7029265
Replaced by #7029265SM
?Manufacturer substitutionThis part replaces 7029265. Substitute parts can look different from the original.This item is not returnable$20.09In Stock - Hn, 3/8c, ny
Part #7091299
Replaced by #703117
?Manufacturer substitutionThis part replaces 7091299. Substitute parts can look different from the original.This item is not returnable$6.23In Stock
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
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: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
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
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 drive cable
The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…
Repair difficulty
Time required
60 minutes or less
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.…
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.
Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…
Learn about the top 10 must-have electric lawn & garden tools for 2023…
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
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