Snapper
Gas Walk-Behind Mower

Model #7800178 Snapper lawn mower

Here are the diagrams and repair parts for Snapper 7800178 lawn mower, as well as links to manuals and error code tables, if available.


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Showing 10 of 658 parts

Wheel Arm

#8

Wheel brackets/latches (push) Diagram

Wheel arm

Part #7033775
This item is not returnable
$6.18

In Stock

Weld

#3

Grass bag components Diagram

Weld

Part #7042489
$18.96

In Stock

Control Panel

#18B

Handles/controls Diagram

Control panel

Part #7073826
$19.20

In Stock

Bracket Kit

#43A

Drive system self-propelled Diagram

Bracket kit

Part #7600171YP
?
Manufacturer substitution
This part replaces 7059462. Substitute parts can look different from the original.
This part replaces 7059462
$47.20

In Stock

Clip

#29

Handles/controls Diagram

Clip

Part #7023813SM
?
Manufacturer substitution
This part replaces 7023813. Substitute parts can look different from the original.
This part replaces 7023813
This item is not returnable
$2.23 | 
36% OFF MSRP:$3.50

In Stock

Lawn & Garden Equipment Bearing

#14

Drive system self-propelled Diagram

Lawn & garden equipment bearing

Part #7028014YP
?
Manufacturer substitution
This part replaces 7028014. Substitute parts can look different from the original.
This part replaces 7028014
$13.29 | 
22% OFF MSRP:$17.00

In Stock

Lawn & Garden Equipment Cotter Pin

#37

Drive system self-propelled Diagram

Lawn & garden equipment cotter pin

Part #703312
?
Manufacturer substitution
This part replaces 7090555. Substitute parts can look different from the original.
This part replaces 7090555
This item is not returnable
$2.56 | 
33% OFF MSRP:$3.80

In Stock

Lawn Mower Drive Disc

#48

Drive system self-propelled Diagram

Lawn mower drive disc

Part #7073528YP
?
Manufacturer substitution
This part replaces 7061275. Substitute parts can look different from the original.
This part replaces 7061275
$31.22 | 
27% OFF MSRP:$43.00

In Stock

Lawn Mower Transmission Assembly

#0

Transmission (differential) Diagram

Lawn mower transmission assembly

Part #7053943YP
?
Manufacturer substitution
This part replaces 7053943. Substitute parts can look different from the original.
This part replaces 7053943
$161.09 | 
33% OFF MSRP:$240.00

In Stock

Lawn & Garden Equipment Washer

#31

Drive system self-propelled Diagram

Lawn & garden equipment washer

Part #703590
?
Manufacturer substitution
This part replaces 7090122. Substitute parts can look different from the original.
This part replaces 7090122
This item is not returnable
$5.36

In 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: 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.