Briggs & Stratton
Lawn & Garden Engine

Model # 42A700 TO 42A799 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 42A700-TO-42A799 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 293 parts  |

Oil Filter 492932
#1027

Sump assembly diagram

Oil filter

Part #492932

Replaced by #492932S

?
Manufacturer substitution
This part replaces 492932. Substitute parts can look different from the original.
BEST SELLER
$15.30
12% OFF Phone Price : $17.30
In Stock
Filter 394358
#240

Air cleaner assembly and manifold diagram

Filter

Part #394358

Replaced by #394358S

?
Manufacturer substitution
This part replaces 394358. Substitute parts can look different from the original.
BEST SELLER
$6.91
13% OFF Phone Price : $7.91
In Stock
Gasket 272293
Gasket

Part #272293

Replaced by #692236

?
Manufacturer substitution
This part replaces 272293. Substitute parts can look different from the original.
BEST SELLER
$6.56
13% OFF Phone Price : $7.56
In Stock
Element 272490
#535

Air cleaner assembly and manifold diagram

Element

Part #272490

Replaced by #272490S

?
Manufacturer substitution
This part replaces 272490. Substitute parts can look different from the original.
BEST SELLER
$6.98
13% OFF Phone Price : $7.98
In Stock
Key 222698
#24

Crankshaft diagram

Key

Part #222698

Replaced by #222698S

?
Manufacturer substitution
This part replaces 222698. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$3.29
23% OFF Phone Price : $4.29
In Stock
Starter Gear 280104
Starter gear

Part #280104

Replaced by #695708

?
Manufacturer substitution
This part replaces 280104. Substitute parts can look different from the original.
BEST SELLER
$8.20
27% OFF Was : $11.29
In Stock
Stator 393474
#474

Flywheel and alternator assembly diagram

Stator

Part #393474

Replaced by #592831

?
Manufacturer substitution
This part replaces 393474. Substitute parts can look different from the original.
BEST SELLER
$101.70
9% OFF Phone Price : $111.70
In Stock
Oil Seal 391086
Oil seal

Part #391086

Replaced by #391086S

?
Manufacturer substitution
This part replaces 391086. Substitute parts can look different from the original.
This item is not returnable
$9.69
9% OFF Phone Price : $10.69
In Stock
Lawn & Garden Equipment Engine Oil Filter (replaces 491056s, 805255, 807894, Bs-491056, Lg491056) 491056
#1027A

Sump assembly diagram

Lawn & garden equipment engine oil filter (replaces 491056s, 805255, 807894, bs-491056, lg491056)

Part #491056

$16.57
11% OFF Phone Price : $18.57
In Stock
Clutch 398003
Clutch

Part #398003

Replaced by #692024

?
Manufacturer substitution
This part replaces 398003. Substitute parts can look different from the original.
This item is not returnable
$27.29
15% OFF Phone Price : $32.29
In Stock

Symptoms for gas walk-behind mowers

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

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

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

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

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…

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

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 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…

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. …

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…

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.

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.…