Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Briggs & Stratton
Lawn & Garden Engine

Model # 81900 TO 81997 (0110 - 0153) Official Briggs & Stratton gas engine

Here are the diagrams and repair parts for Official Briggs & Stratton 81900-TO-81997-0110-0153 gas 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 194 parts  |
Plug Oil Fil 66768

#21

All parts diagram

Plug oil fil

Part #66768

Replaced by #281658S

?
Manufacturer substitution
This part replaces 66768. Substitute parts can look different from the original.
This item is not returnable
$5.79 | 
15% OFF Phone Price : $6.79
In Stock
Arm Magneto 298502

#333A

All parts diagram

Arm magneto

Part #298502

Replaced by #591420

?
Manufacturer substitution
This part replaces 298502. Substitute parts can look different from the original.
$67.99 | 
8% OFF Phone Price : $73.99
In Stock
Part 27910

#394

All parts diagram

Part

Part #27910

Replaced by #270026

?
Manufacturer substitution
This part replaces 27910. Substitute parts can look different from the original.
This item is not returnable
$5.66 | 
15% OFF Phone Price : $6.66
In Stock
Gasket 27911

#191

All parts diagram

Gasket

Part #27911

Replaced by #272409S

?
Manufacturer substitution
This part replaces 27911. Substitute parts can look different from the original.
This item is not returnable
$5.94
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.
$25.00
In Stock
Element-fltr 27987

#535

All parts diagram

Element-fltr

Part #27987

Replaced by #27987S

?
Manufacturer substitution
This part replaces 27987. Substitute parts can look different from the original.
This item is not returnable
$12.69 | 
14% OFF Phone Price : $14.69
In Stock
Cover Dpgm 210959

#434

All parts diagram

Cover dpgm

Part #210959

Replaced by #691713

?
Manufacturer substitution
This part replaces 210959. Substitute parts can look different from the original.
$17.03
In Stock
Wire Ground 296185

#356

All parts diagram

Wire ground

Part #296185

Replaced by #398808

?
Manufacturer substitution
This part replaces 296185. Substitute parts can look different from the original.
This item is not returnable
$19.69 | 
9% OFF Phone Price : $21.69
In Stock
Pipe Fuel 297219

#611

All parts diagram

Pipe fuel

Part #297219

Replaced by #297219S

?
Manufacturer substitution
This part replaces 297219. Substitute parts can look different from the original.
$16.31
In Stock
Gas Cyl Hd 27670

#7

All parts diagram

Gas cyl hd

Part #27670

Replaced by #272167

?
Manufacturer substitution
This part replaces 27670. Substitute parts can look different from the original.
This item is not returnable
$12.11
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

View all

Why does my lawn mower run rough?

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

Read more

Why does my lawn mower cut unevenly?

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

Read more

Why does my lawn mower vibrate a lot?

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

Read more

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…

Read more

Why does my lawn mower stall?

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

Read more

Why won't my lawn mower move?

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

Read more

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.

View all
How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Read more
Repair difficulty
Time required
 45 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.

View all
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.…

Read more
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.…

Read more

Parts & More