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 # 31R977-0010-B1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 31R977-0010-B1 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 169 parts  |
Lawn & Garden Equipment Engine Starter Drive Assembly 693699

#510

All parts diagram

Lawn & garden equipment engine starter drive assembly

Part #693699

Replaced by #593934

?
Manufacturer substitution
This part replaces 693699. Substitute parts can look different from the original.
BEST SELLER
$141.49 | 
8% OFF Phone Price : $153.49
In Stock
Lawn & Garden Equipment Engine Starter Motor 693551

#309

All parts diagram

Lawn & garden equipment engine starter motor

Part #693551

Replaced by #593934

?
Manufacturer substitution
This part replaces 693551. Substitute parts can look different from the original.
BEST SELLER
$141.49 | 
8% OFF Phone Price : $153.49
In Stock
Lawn & Garden Equipment Engine Rocker Arm Cover Gasket (replaces 272475, 692285) 272475S

#1022

All parts diagram

Lawn & garden equipment engine rocker arm cover gasket (replaces 272475, 692285)

Part #272475S

BEST SELLER
$7.56 | 
12% OFF Phone Price : $8.56
In Stock
Lawn & Garden Equipment Engine Spark Plug (replaces Bs-691043) 691043

#337

All parts diagram

Lawn & garden equipment engine spark plug (replaces bs-691043)

Part #691043

BEST SELLER

Get free shipping with Automatic Reorder

$7.27 | 
12% OFF Phone Price : $8.27
In Stock
Lawn & Garden Equipment Engine Ignition Coil 799650

#333

All parts diagram

Lawn & garden equipment engine ignition coil

Part #799650

Replaced by #595304

?
Manufacturer substitution
This part replaces 799650. Substitute parts can look different from the original.
BEST SELLER
$53.25 | 
10% OFF Phone Price : $59.25
In Stock
Lawn & Garden Equipment Engine Carburetor 591734

#125

All parts diagram

Lawn & garden equipment engine carburetor

Part #591734

Replaced by #594605

?
Manufacturer substitution
This part replaces 591734. Substitute parts can look different from the original.
BEST SELLER
$134.66 | 
8% OFF Phone Price : $146.66
In Stock
Lawn & Garden Equipment Engine Intake Valve Push Rod (replaces 494432) 692003

#1026

All parts diagram

Lawn & garden equipment engine intake valve push rod (replaces 494432)

Part #692003

BEST SELLER
$9.84 | 
9% OFF Phone Price : $10.84
In Stock
Lawn & Garden Equipment Engine Carburetor Rebuild Kit (replaces 698787, 790032, Bs-699521, Bs-796184) 796184

#121

All parts diagram

Lawn & garden equipment engine carburetor rebuild kit (replaces 698787, 790032, bs-699521, bs-796184)

Part #796184

BEST SELLER
$61.84 | 
9% OFF Phone Price : $67.84
In Stock
Lawn & Garden Equipment Engine Exhaust Valve Push Rod (replaces 495136) 692011

#1026A

All parts diagram

Lawn & garden equipment engine exhaust valve push rod (replaces 495136)

Part #692011

BEST SELLER
This item is not returnable
$13.23 | 
13% OFF Phone Price : $15.23
In Stock
Lawn & Garden Equipment Engine Alternator (replaces 696459) 592831

#474

All parts diagram

Lawn & garden equipment engine alternator (replaces 696459)

Part #592831

BEST SELLER
$101.70 | 
11% OFF Phone Price : $113.70
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Repair guides for front-engine lawn tractors

How to replace a ground drive belt on a riding lawn mower

How to replace a ground drive belt on a riding lawn mower

Replace the ground drive belt if it's broken or too worn to spin the transaxle pulley.…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a blade clutch cable on a riding lawn mower

How to replace a blade clutch cable on a riding lawn mower

If the blades don't spin on your riding mower when you shift the lever, the blade clutch cable could be broken. Here’s h…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower blade drive belt

How to replace a riding lawn mower blade drive belt

Replace the blade drive belt if it's broken or won't spin the cutting blades because of wear.…

Read more
Repair difficulty
Time required
 45 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