Craftsman
Lawn & Garden Engine

Model # 751781 Official Craftsman engine

Here are the diagrams and repair parts for Official Craftsman 751781 engine, 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 15 parts  |

Connector 75187

#*90641

All parts diagram

Connector

Part #75187

Replaced by #6190

?
Manufacturer substitution
This part replaces 75187. Substitute parts can look different from the original.
$24.09
20% OFF Phone Price : $30.09
In Stock
Coupler 75188

#*90642

All parts diagram

Coupler

Part #75188

Replaced by #312981GS

?
Manufacturer substitution
This part replaces 75188. Substitute parts can look different from the original.
$43.27
12% OFF Phone Price : $49.27
In Stock
Connector 75197

#*90648

All parts diagram

Connector

Part #75197

Replaced by #312981GS

?
Manufacturer substitution
This part replaces 75197. Substitute parts can look different from the original.
$43.27
12% OFF Phone Price : $49.27
In Stock
Nozzle 75186

#*90640

All parts diagram

Nozzle

Part #75186

Replaced by #95530GS

?
Manufacturer substitution
This part replaces 75186. Substitute parts can look different from the original.
In Stock
Coupler 75191

#*90645

All parts diagram

Coupler

Part #75191

Replaced by #95457GS

?
Manufacturer substitution
This part replaces 75191. Substitute parts can look different from the original.
$12.09
14% OFF Phone Price : $14.09
In Stock
50-ft Hose 75193

#*90646

All parts diagram

50-ft hose

Part #75193

Replaced by #7175193GS

?
Manufacturer substitution
This part replaces 75193. Substitute parts can look different from the original.
In Stock
Brush Kit 75199

#*90650

All parts diagram

Brush kit

Part #75199

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

Connector 75198

#*90649

All parts diagram

Connector

Part #75198

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

Angle Wand 75196

#*90647

All parts diagram

Angle wand

Part #75196

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

Degreaser 75103

#*90654

All parts diagram

Degreaser

Part #75103

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: 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 lawn & garden engines

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

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.…

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…