Briggs & Stratton
Lawn & Garden Engine

Model # 121012-0122-B8 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 121012-0122-B8 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 255 parts  |

Lawn & Garden Equipment Engine Air Filter (replaces 392672, 393365, 49245, 690610, Bs-697029) 697029
#445A

Air cleaner/exhaust system diagram

Lawn & garden equipment engine air filter (replaces 392672, 393365, 49245, 690610, bs-697029)

Part #697029

BEST SELLER
$19.44
9% OFF Phone Price : $21.44
In Stock
Lawn & Garden Equipment Engine Recoil Starter Pulley (replaces 263074, 281504, Bs-498144) 498144
Lawn & garden equipment engine recoil starter pulley (replaces 263074, 281504, bs-498144)

Part #498144

BEST SELLER
$24.47
20% OFF Phone Price : $30.47
In Stock
Lawn & Garden Equipment Engine Carburetor Rebuild Kit (replaces 696998, 792007, Bs-696998, Bs-792006) 792006
#121

Carburetor/fuel supply diagram

Lawn & garden equipment engine carburetor rebuild kit (replaces 696998, 792007, bs-696998, bs-792006)

Part #792006

$37.09
14% OFF Phone Price : $43.09
In Stock
Lawn & Garden Equipment Engine Recoil Starter Pawl (replaces 281505, 692260, Bs-281505s) 281505S
#459

Blower housing/starter/flywheel diagram

Lawn & garden equipment engine recoil starter pawl (replaces 281505, 692260, bs-281505s)

Part #281505S

This item is not returnable
$5.80
15% OFF Phone Price : $6.80
In Stock
Lawn & Garden Equipment Engine Carburetor Float (replaces Bs-398187) 398187
#133

Carburetor/fuel supply diagram

Lawn & garden equipment engine carburetor float (replaces bs-398187)

Part #398187

This item is not returnable
$11.96
14% OFF Phone Price : $13.96
In Stock
Lawn & Garden Equipment Engine Recoil Starter Pawl Friction Plate (replaces 281503, Bs-692299) 692299
#456

Blower housing/starter/flywheel diagram

Lawn & garden equipment engine recoil starter pawl friction plate (replaces 281503, bs-692299)

Part #692299

This item is not returnable
$7.89
11% OFF Phone Price : $8.89
In Stock
Lawn & Garden Equipment Engine Washer 271716
#276

Carburetor/fuel supply diagram

Lawn & garden equipment engine washer

Part #271716

This item is not returnable
$6.19
14% OFF Phone Price : $7.19
In Stock
Lawn & Garden Equipment Engine Fuel Shut-off Valve (replaces 692586, 698181) 698180
#958

Carburetor/fuel supply diagram

Lawn & garden equipment engine fuel shut-off valve (replaces 692586, 698181)

Part #698180

This item is not returnable
$19.94
9% OFF Phone Price : $21.94
In Stock
Lawn & Garden Equipment Engine Fuel Line 791867
#187A

Carburetor/fuel supply diagram

Lawn & garden equipment engine fuel line

Part #791867

This item is not returnable
$26.89
18% OFF Phone Price : $32.89
In Stock
Lawn & Garden Equipment Engine Oil Fill Cap (replaces 281658, 49-667, 66768, 692261, Bs-281658s) 281658S
#21

Cylinder/crankcase/crankshaft diagram

Lawn & garden equipment engine oil fill cap (replaces 281658, 49-667, 66768, 692261, bs-281658s)

Part #281658S

This item is not returnable
$5.79
15% OFF Phone Price : $6.79
In Stock

Symptoms for electric ranges

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

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

Repair guides for electric ranges

How to replace a range hidden bake element

How to replace a range hidden bake element

These step-by-step instructions guide you through replacing the oven hidden bake element in an electric range.…

Repair difficulty
Time required
 30 minutes or less
How to replace a range glass cooktop

How to replace a range glass cooktop

These step-by-step instructions explain how to replace a damaged ceramic glass cooktop on an electric range. …

Repair difficulty
Time required
 45 minutes or less
How to replace a range relay control board

How to replace a range relay control board

Follow these instructions to replace the relay control board if it isn't responding to signals from the microprocessor d…

Repair difficulty
Time required
 45 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.…