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Snapper
Gas Walk-Behind Mower

Model # 7800166 Official Snapper lawn mower

Here are the diagrams and repair parts for Official Snapper 7800166 lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 33 parts  |
Bracket, Lower Handle (2) 7300103
#20

Handles/controls diagram

Bracket, lower handle (2)

Part #7300103

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

Harness 7015488
#23

Rear wheels (self-propelled) diagram

Harness

Part #7015488

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

Decal, Warning/danger Walk-behind Mowers 7100984
#8

Decals diagram

Decal, warning/danger walk-behind mowers

Part #7100984

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

Deck Assy, 2 7078216
#1

Guards/covers diagram

Deck assy, 2

Part #7078216

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

Engine UNAV1
#1B

Engine/blade diagram

Engine

Part #UNAV1

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

Housing 7078214
Housing

Part #7078214

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

Bag Adapter 7047081
#17

Bagging diagram

Bag adapter

Part #7047081

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

Screw, #10-24 X 1/2 Hex Head Cap (2) 7043977
#22

Rear wheels (self-propelled) diagram

Screw, #10-24 x 1/2 hex head cap (2)

Part #7043977

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

Speed Cable 7100264
#16

Handles/controls diagram

Speed cable

Part #7100264

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

Assembly, Control Head, Variable Speed (incl. Items 8-12, 15 And 16) 710069
#8A

Handles/controls diagram

Assembly, control head, variable speed (incl. items 8-12, 15 and 16)

Part #710069

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.

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Why does my lawn mower vibrate a lot?

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

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Why does my lawn mower cut unevenly?

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

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Why does my lawn mower run rough?

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

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Why won't my lawn mower move?

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

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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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.

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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.…

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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.…

Read more
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.…

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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.

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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.…

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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.…

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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.…

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