Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
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 # 121S02-0120-F1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 121S02-0120-F1 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 127 parts  |
Lawn & Garden Equipment Engine Spark Plug 692051

#337

All parts diagram

Lawn & garden equipment engine spark plug

Part #692051

BEST SELLER
$8.59 | 
10% OFF Phone Price : $9.59
In Stock
Lawn & Garden Equipment Engine Recoil Starter Handle (replaces 281434, 691930, 795426, Bs-281434s) 281434S

#60

All parts diagram

Lawn & garden equipment engine recoil starter handle (replaces 281434, 691930, 795426, bs-281434s)

Part #281434S

BEST SELLER
This item is not returnable
$6.34 | 
14% OFF Phone Price : $7.34
In Stock
Lawn & Garden Equipment Engine Carburetor Float (replaces Bs-398187) 398187

#133

All parts 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 Washer 271716

#276

All parts 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 Air Filter Collar Gasket (replaces 273364, Bs-691894) 691894

#163

All parts diagram

Lawn & garden equipment engine air filter collar gasket (replaces 273364, bs-691894)

Part #691894

This item is not returnable
$6.89 | 
13% OFF Phone Price : $7.89
In Stock
Lawn & Garden Equipment Engine Spark Plug Wire Terminal (replaces 493880, 691234, Bs-493880s) 493880S

#851

All parts diagram

Lawn & garden equipment engine spark plug wire terminal (replaces 493880, 691234, bs-493880s)

Part #493880S

This item is not returnable
$4.75 | 
17% OFF Phone Price : $5.75
In Stock
Lawn & Garden Equipment Engine Air Filter 796254

#535

All parts diagram

Lawn & garden equipment engine air filter

Part #796254

This item is not returnable
$11.29 | 
15% OFF Phone Price : $13.29
In Stock
Lawn & Garden Equipment Engine Fuel Line Clamp 791850

#601

All parts diagram

Lawn & garden equipment engine fuel line clamp

Part #791850

This item is not returnable
$4.74 | 
17% OFF Phone Price : $5.74
In Stock
Lawn & Garden Equipment Engine Crankshaft Oil Seal (replaces 399781, 691989, Bs-399781s) 399781S

#20

All parts diagram

Lawn & garden equipment engine crankshaft oil seal (replaces 399781, 691989, bs-399781s)

Part #399781S

This item is not returnable
$11.11 | 
15% OFF Phone Price : $13.11
In Stock
Lawn & Garden Equipment Engine Oil Drain Plug (replaces 94720, 94880, Bs-691680) 691680

#15

All parts diagram

Lawn & garden equipment engine oil drain plug (replaces 94720, 94880, bs-691680)

Part #691680

$9.59 | 
9% OFF Phone Price : $10.59
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

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