Snapper
Gas Walk-Behind Mower

Model #SP520-SERIES 0 Snapper gas walk-behind lawn mower

Here are the diagrams and repair parts for Snapper SP520-SERIES-0 gas walk-behind lawn mower, as well as links to manuals and error code tables, if available.


There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Save to my profile

Showing 10 of 357 parts

Lawn & Garden Equipment Engine Fuel Filter

#10

Fuel tank Diagram

Lawn & garden equipment engine fuel filter

Part #394358S
?
Manufacturer substitution
This part replaces 1-4359. Substitute parts can look different from the original.
This part replaces 1-4359
This item is not returnable
$4.60

In Stock

Clamp .490 X

#7

Fuel tank Diagram

Clamp .490 x

Part #7029900SM
?
Manufacturer substitution
This part replaces 1-2222. Substitute parts can look different from the original.
This part replaces 1-2222
This item is not returnable
$2.76

In Stock

SWITCH, TRANSMISSION NC (KOHLER 18HP) (2)

#8B

Pump and shelf Diagram

Switch, transmission nc (kohler 18hp) (2)

Part #1-6155

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

ASEMBLY, CASTER RED (2)

#19

48" & 52" mower deck (fixed height) Diagram

Asembly, caster red (2)

Part #5-4020

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

ASSEMBLY, IDLER (48" & 61" DECKS)

#21

48" & 52" mower deck (fixed height) Diagram

Assembly, idler (48" & 61" decks)

Part #5-4023

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

GRIP, NEUTRAL LATCH

#1

Tracking control Diagram

Grip, neutral latch

Part #1-1879

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

Sleeve Axle

#6

Caster/wheel/tire Diagram

Sleeve axle

Part #2-2151

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

WING NUT, 5/16-18 (2)

#44

48"/52"/61" mower deck(adj. height) Diagram

Wing nut, 5/16-18 (2)

Part #2-4085

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

PULLEY, 5-1/2" (2)

#25

Pump and shelf Diagram

Pulley, 5-1/2" (2)

Part #2-7131

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

SCREW, 5/16-18 X 2" HEX HEAD CAP, GRADE 5

#3

Pump and shelf Diagram

Screw, 5/16-18 x 2" hex head cap, grade 5

Part #2-7174

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

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: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
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: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

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.

March 1, 2016
By Lyle Weischwill
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 cable if it's broken or frozen up inside the sheath.

Repair difficulty
Time required
 60 minutes or less
March 1, 2016
By Lyle Weischwill
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
April 1, 2013
By Lyle Weischwill
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.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

October 1, 2019

Types of walk-behind mower blades video

By Sears PartsDirect staff

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