Briggs & Stratton
Lawn & Garden Engine

Model # 303777-0015-02 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 303777-0015-02 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 188 parts  |

Flat Pump Assembly 491922
#17

Carburetor diagram

Flat pump assembly

Part #491922

Replaced by #597338

?
Manufacturer substitution
This part replaces 491922. Substitute parts can look different from the original.
BEST SELLER
$30.26
17% OFF Phone Price : $36.26
In Stock
Magneto Armature 490586
#16

Carburetor diagram

Magneto armature

Part #490586

Replaced by #591459

?
Manufacturer substitution
This part replaces 490586. Substitute parts can look different from the original.
BEST SELLER
$50.43
11% OFF Phone Price : $56.43
In Stock
Starter Gear 280104
#11

Starter assembly 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
Motor 399169
#1

Starter assembly diagram

Motor

Part #399169

Replaced by #795121

?
Manufacturer substitution
This part replaces 399169. Substitute parts can look different from the original.
BEST SELLER
$165.53
7% OFF Phone Price : $177.53
In Stock
Lawn & Garden Equipment Engine Oil Filter (replaces 491056s, 805255, 807894, Bs-491056, Lg491056) 491056
#33

Cylinder 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
Regulator 394890
#43

Carburetor diagram

Regulator

Part #394890

Replaced by #845907

?
Manufacturer substitution
This part replaces 394890. Substitute parts can look different from the original.
$67.66
8% OFF Phone Price : $73.66
In Stock
Terminal Cable 221798
#15

Carburetor 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
Elbow 805529
#15

Cylinder assembly diagram

Elbow

Part #805529

Replaced by #692076

?
Manufacturer substitution
This part replaces 805529. Substitute parts can look different from the original.
This item is not returnable
$10.29
16% OFF Phone Price : $12.29
In Stock
Kit 490467
#12

Starter assembly diagram

Kit

Part #490467

Replaced by #696540

?
Manufacturer substitution
This part replaces 490467. Substitute parts can look different from the original.
$39.79
13% OFF Phone Price : $45.79
In Stock
Drive 490421
#13

Starter assembly diagram

Drive

Part #490421

Replaced by #696540

?
Manufacturer substitution
This part replaces 490421. Substitute parts can look different from the original.
$39.79
13% OFF Phone Price : $45.79
In Stock

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.…