Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
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 # 407777-0121-E3 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 407777-0121-E3 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 191 parts  |
Lawn & Garden Equipment Engine Inline Fuel Filter 691035

#240

All parts diagram

Lawn & garden equipment engine inline fuel filter

Part #691035

Replaced by #84001895

?
Manufacturer substitution
This part replaces 691035. Substitute parts can look different from the original.
BEST SELLER
$9.88 | 
9% OFF Phone Price : $10.88
In Stock
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
$14.84 | 
12% OFF Phone Price : $16.84
In Stock
Oil Filter 499486

#445

All parts diagram

Oil filter

Part #499486

Replaced by #499486S

?
Manufacturer substitution
This part replaces 499486. Substitute parts can look different from the original.
BEST SELLER
$20.48 | 
23% OFF Phone Price : $26.48
In Stock
Fuel Line (red) 691050

#187

All parts diagram

Fuel line (red)

Part #691050

Replaced by #791766

?
Manufacturer substitution
This part replaces 691050. Substitute parts can look different from the original.
BEST SELLER
$9.30 | 
10% OFF Phone Price : $10.30
In Stock
Pre-filter 273638

#967

All parts diagram

Pre-filter

Part #273638

Replaced by #273638S

?
Manufacturer substitution
This part replaces 273638. Substitute parts can look different from the original.
BEST SELLER
$7.60 | 
12% OFF Phone Price : $8.60
In Stock
Oil Seal 690947

#20

All parts diagram

Oil seal

Part #690947

Replaced by #795387

?
Manufacturer substitution
This part replaces 690947. Substitute parts can look different from the original.
BEST SELLER
$9.02 | 
10% OFF Phone Price : $10.02
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 Motor 691262

#309

All parts diagram

Starter motor

Part #691262

Replaced by #795121

?
Manufacturer substitution
This part replaces 691262. Substitute parts can look different from the original.
BEST SELLER
$165.53 | 
7% OFF Phone Price : $177.53
In Stock
Lawn & Garden Equipment Engine Intake Valve Push Rod (replaces 498746) 690982

#1026A

All parts diagram

Lawn & garden equipment engine intake valve push rod (replaces 498746)

Part #690982

BEST SELLER
$9.91 | 
9% OFF Phone Price : $10.91
In Stock
Lawn & Garden Equipment Engine Exhaust Valve Push Rod (replaces 498745) 690981

#1026

All parts diagram

Lawn & garden equipment engine exhaust valve push rod (replaces 498745)

Part #690981

Replaced by #597785

?
Manufacturer substitution
This part replaces 690981. Substitute parts can look different from the original.
BEST SELLER
$14.89
In Stock

Repair guides for chest freezers

How to replace a freezer compressor start relay

How to replace a freezer compressor start relay

The compressor start relay starts the compressor. If the compressor won’t start, follow these steps to replace a defect…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer temperature control thermostat

How to replace a freezer temperature control thermostat

The cold control thermostat regulates the freezer temperature. A defective cold control thermostat can prevent the compr…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer lid gasket

How to replace a freezer lid gasket

The lid gasket prevents air and moisture from entering the freezer when the lid is closed. Follow these steps to replace…

Read more
Repair difficulty
Time required
 30 minutes or less

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

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