Snapper
Gas Walk-Behind Mower

Model # 7800005 Official Snapper 21" steel deck easy line

Here are the diagrams and repair parts for Official Snapper 7800005 21" steel deck easy line, 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.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 163 parts  |

Hln, 1/4c Bz 7076978
Hln, 1/4c bz

Part #7076978

Replaced by #703232

?
Manufacturer substitution
This part replaces 7076978. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.24
14% OFF Phone Price : $7.24
In Stock
Nut 7091070
Nut

Part #7091070

Replaced by #703409

?
Manufacturer substitution
This part replaces 7091070. Substitute parts can look different from the original.
$9.27
10% OFF Phone Price : $10.27
In Stock
Fln 5/16-18 7091601
Fln 5/16-18

Part #7091601

Replaced by #703409

?
Manufacturer substitution
This part replaces 7091601. Substitute parts can look different from the original.
$9.27
10% OFF Phone Price : $10.27
In Stock
Hfln 3/8 7091619
#8

Rear deck brackets/idler arm diagram

Hfln 3/8

Part #7091619

Replaced by #703333

?
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
Blade 7100242
#10

Engine/blade diagram

Blade

Part #7100242

Replaced by #7100242AYP

?
Manufacturer substitution
This part replaces 7100242. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

$36.69
14% OFF Phone Price : $42.69
In Stock
Hhcs 3/8 7090167
#12

Engine/blade diagram

Hhcs 3/8

Part #7090167

Replaced by #7090167SM

?
Manufacturer substitution
This part replaces 7090167. Substitute parts can look different from the original.
In Stock
Belt Guide 7100022
#4

Engine/blade diagram

Belt guide

Part #7100022

Replaced by #7100022YP

?
Manufacturer substitution
This part replaces 7100022. Substitute parts can look different from the original.
In Stock
Belt 7100058
#7

Transmission diagram

Belt

Part #7100058

Replaced by #7100058YP

?
Manufacturer substitution
This part replaces 7100058. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

In Stock
Rhssnb, 3/8- 7900009
#17

Rear deck brackets/idler arm diagram

Rhssnb, 3/8-

Part #7900009

Replaced by #7900009SM

?
Manufacturer substitution
This part replaces 7900009. Substitute parts can look different from the original.
This item is not returnable
In Stock
Cone Washer 7012063
#11

Engine/blade diagram

Cone washer

Part #7012063

Replaced by #703963

?
Manufacturer substitution
This part replaces 7012063. Substitute parts can look different from the original.
In Stock

Symptoms for gas walk-behind mowers

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

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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…

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 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.…

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.…

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.…

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.

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.…

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.…

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.…