Briggs & Stratton
Lawn & Garden Engine

Model # 42A777-1298-01 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 42A777-1298-01 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 202 parts  |

Oil Filter 492932

#1027

All parts 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

All parts diagram

Filter

Part #394358

Replaced by #394358S

?
Manufacturer substitution
This part replaces 394358. Substitute parts can look different from the original.
BEST SELLER
$6.67
13% OFF Phone Price : $7.67
In Stock
Cartridge 394019

#445

All parts diagram

Cartridge

Part #394019

Replaced by #394019S

?
Manufacturer substitution
This part replaces 394019. Substitute parts can look different from the original.
BEST SELLER
$27.42
18% OFF Phone Price : $33.42
In Stock
Element 272490

#535

All parts 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

All parts 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

#783

All parts diagram

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
11% OFF Phone Price : $9.20
In Stock
Lawn & Garden Equipment Engine Starter Motor (replaces 394674, 394808) 497596

#309

All parts diagram

Lawn & garden equipment engine starter motor (replaces 394674, 394808)

Part #497596

BEST SELLER
$110.89
10% OFF Phone Price : $122.89
In Stock
Carburetor 491539

#121

All parts diagram

Carburetor

Part #491539

Replaced by #694056

?
Manufacturer substitution
This part replaces 491539. Substitute parts can look different from the original.
BEST SELLER
$36.07
14% OFF Phone Price : $42.07
In Stock
Elbow Spacer Plug 66538

#635

All parts diagram

Elbow spacer plug

Part #66538

Replaced by #66538S

?
Manufacturer substitution
This part replaces 66538. Substitute parts can look different from the original.
This item is not returnable
$5.11
16% OFF Phone Price : $6.11
In Stock
Retainer 263080

#615B

All parts diagram

Retainer

Part #263080

Replaced by #691265

?
Manufacturer substitution
This part replaces 263080. Substitute parts can look different from the original.
This item is not returnable
$8.99
10% OFF Phone Price : $9.99
In Stock

Symptoms for electric ranges

Main causes: impact from dropping an item on the glass surface, ceramic glass surface flaw, surface element temperature ...

Main causes: faulty surface element, burner control switch failure, temperature limiter not working properly, loose wiri...

Repair guides for electric ranges

How to replace a range radiant surface element

How to replace a range radiant surface element

If the element on your glass cooktop isn't heating up even though it gets power, replace it yourself, in about 45 minute...

Repair difficulty
Time required
45 minutes or less
How to replace an electric range oven control board

How to replace an electric range oven control board

If the electronic oven control board isn't powering the bake and broil functions, you can replace it in less than half a...

Repair difficulty
Time required
15 minutes or less
How to replace a range coil surface element

How to replace a range coil surface element

Easily replace a coil surface element in 15 minutes or less by following these step-by-step instructions....

Repair difficulty
Time required
15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

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....