Snapper
Gas Walk-Behind Mower

Model #7800174 Snapper lawn mower

Here are the repair parts and diagrams for your Snapper 7800174 lawn mower. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

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

Control Panel

#18B

Handles/controls Diagram

Control panel

Part #7073826

$19.20

In Stock

Weld

#3

Grass bag components Diagram

Weld

Part #7042489

$18.96

In Stock

Lawn Tractor Ground Drive Belt

#20

Drive system self-propelled Diagram

Lawn tractor ground drive belt

Part #7046784YP
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  7046784
This part replaces 7046784

Get free shipping with Automatic Reorder

$18.87

In Stock

Ninja Plug K

#0A

Recycling kits accessory Diagram

Ninja plug k

Part #7061201YP
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  7061201
This part replaces 7061201

$80.96

In Stock

Lawn & Garden Equipment Cotter Pin

#37

Drive system self-propelled Diagram

Lawn & garden equipment cotter pin

Part #703312
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  7090555
This part replaces 7090555
This item is not returnable

$2.56

In Stock

Lawn & Garden Equipment Washer

#30

Drive system self-propelled Diagram

Lawn & garden equipment washer

Part #703930
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  7090390
This part replaces 7090390
This item is not returnable

$2.44

In Stock

Clip

#29

Handles/controls Diagram

Clip

Part #7023813SM
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  7023813
This part replaces 7023813
This item is not returnable

$2.23

In Stock

Cap Screw

#35

Handles/controls Diagram

Cap screw

Part #703163
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  7090505
This part replaces 7090505
This item is not returnable

$2.23

In Stock

Grip

#11

Wheels brackets/latches Diagram

Grip

Part #7103793YP
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  7100633
This part replaces 7100633
This item is not returnable

$2.47

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
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
April 1, 2013
By Lyle Weischwill
How to replace a lawn mower safety switch

The safety switch stops the engine when you release the lever on the handle. This repair guide explains how to replace it if it's not working correctly.

Repair difficulty
Time required
 30 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.