Briggs & Stratton
Lawn & Garden Engine

Model # 251700 TO 251799 (0177 - 0177) Official Briggs & Stratton gas engine

Here are the diagrams and repair parts for Official Briggs & Stratton 251700-TO-251799-0177-0177 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 225 parts  |

Engine Starter Assembly 391177

#309

All parts diagram

Engine starter assembly

Part #391177

Replaced by #795121

?
Manufacturer substitution
This part replaces 391177. Substitute parts can look different from the original.
BEST SELLER
$165.53
7% OFF Phone Price : $177.53
In Stock
Alternator Stator 391520

#474

All parts diagram

Alternator stator

Part #391520

Replaced by #592831

?
Manufacturer substitution
This part replaces 391520. Substitute parts can look different from the original.
$98.74
11% OFF Phone Price : $110.74
In Stock
Gear 391764

#219

All parts diagram

Gear

Part #391764

Replaced by #691968

?
Manufacturer substitution
This part replaces 391764. Substitute parts can look different from the original.
$44.07
12% OFF Phone Price : $50.07
In Stock
Oil Filter Plug 66768

#21

All parts diagram

Oil filter plug

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
Oil Seal 68838

#524

All parts diagram

Oil seal

Part #68838

Replaced by #281370S

?
Manufacturer substitution
This part replaces 68838. Substitute parts can look different from the original.
This item is not returnable
$11.80
14% OFF Phone Price : $13.80
In Stock
Clamp 93053

#601

All parts diagram

Clamp

Part #93053

Replaced by #791850

?
Manufacturer substitution
This part replaces 93053. Substitute parts can look different from the original.
This item is not returnable
$4.74
17% OFF Phone Price : $5.74
In Stock
Lawn & Garden Equipment Engine Recoil Starter Pulley 295871

#56

All parts diagram

Lawn & garden equipment engine recoil starter pulley

Part #295871

This item is not returnable
$26.99
18% OFF Phone Price : $32.99
In Stock
Gas Valve Cover 27803

#9

All parts diagram

Gas valve cover

Part #27803

Replaced by #27803S

?
Manufacturer substitution
This part replaces 27803. Substitute parts can look different from the original.
This item is not returnable
$5.80
15% OFF Phone Price : $6.80
In Stock
Oil Seal 291675

#20

All parts diagram

Oil seal

Part #291675

Replaced by #291675S

?
Manufacturer substitution
This part replaces 291675. Substitute parts can look different from the original.
This item is not returnable
$10.09
17% OFF Phone Price : $12.09
In Stock
Clutch Assembly 391135

#513

All parts diagram

Clutch assembly

Part #391135

Replaced by #692024

?
Manufacturer substitution
This part replaces 391135. Substitute parts can look different from the original.
This item is not returnable
$27.29
18% OFF Phone Price : $33.29
In Stock

Repair guides for electric wall ovens

How to replace a wall oven broil element

How to replace a wall oven broil element

Follow these step-by-step instructions to replace the broiler element in an electric oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a temperature sensor on an electric wall oven

How to replace a temperature sensor on an electric wall oven

These step-by-step instructions guide you through replacing a temperature sensing probe on an electric wall oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a wall oven hidden bake element

How to replace a wall oven hidden bake element

These step-by-step instructions guide you through replacing the hidden bake element.…

Repair difficulty
Time required
 30 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.…