Briggs & Stratton
Lawn & Garden Engine

Model # 92502-3178-01 Official Briggs & Stratton 4-cycle engine

Here are the diagrams and repair parts for Official Briggs & Stratton 92502-3178-01 4-cycle engine, 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 125 parts  |

Terminal Cable 221798

#851

All parts diagram

Terminal cable

Part #221798

Replaced by #493880S

?
Manufacturer substitution
This part replaces 221798. Substitute parts can look different from the original.
This item is not returnable
$4.75
17% OFF Phone Price : $5.75
In Stock
Armature 397316

#333

All parts diagram

Armature

Part #397316

Replaced by #591420

?
Manufacturer substitution
This part replaces 397316. Substitute parts can look different from the original.
$67.99
8% OFF Phone Price : $73.99
In Stock
Lawn & Garden Equipment Engine Insert Grip 396892

#59

All parts diagram

Lawn & garden equipment engine insert grip

Part #396892

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Stop Wire 398808

#356

All parts diagram

Lawn & garden equipment engine stop wire

Part #398808

This item is not returnable
$19.69
9% OFF Phone Price : $21.69
In Stock
Screw 94102

#188

All parts diagram

Screw

Part #94102

Replaced by #691640

?
Manufacturer substitution
This part replaces 94102. Substitute parts can look different from the original.
This item is not returnable
In Stock
Cylinder Head Screw 93111

#13

All parts diagram

Cylinder head screw

Part #93111

Replaced by #691640

?
Manufacturer substitution
This part replaces 93111. Substitute parts can look different from the original.
This item is not returnable
In Stock
Ratchet Str 298436

#70

All parts diagram

Ratchet str

Part #298436

Replaced by #691945

?
Manufacturer substitution
This part replaces 298436. Substitute parts can look different from the original.
In Stock
Pulley 280439

#56

All parts diagram

Pulley

Part #280439

Replaced by #280439S

?
Manufacturer substitution
This part replaces 280439. Substitute parts can look different from the original.
$17.49
10% OFF Phone Price : $19.49
In Stock
Wrench Spacer Plate 89838

#383

All parts diagram

Wrench spacer plate

Part #89838

Replaced by #89838S

?
Manufacturer substitution
This part replaces 89838. Substitute parts can look different from the original.
This item is not returnable
$10.59
16% OFF Phone Price : $12.59
In Stock
Lawn-boy Lawn & Garden Equipment Engine Intake Valve 296677

#34

All parts diagram

Lawn-boy lawn & garden equipment engine intake valve

Part #296677

In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

Main causes: faulty sensors, wiring failure, bad control console…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

Repair difficulty
Time required
 30 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 treadmill.

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.…