Briggs & Stratton
Lawn & Garden Engine

Model # 12F802-1574-21 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 12F802-1574-21 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 139 parts  |

Fuel Cap 397974

#957

All parts diagram

Fuel cap

Part #397974

Replaced by #796577

?
Manufacturer substitution
This part replaces 397974. Substitute parts can look different from the original.
BEST SELLER
$20.69
22% OFF Phone Price : $26.69
In Stock
Air Cleaner Gasket 272653

#163

All parts diagram

Air cleaner gasket

Part #272653

Replaced by #795629

?
Manufacturer substitution
This part replaces 272653. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.51
18% OFF Phone Price : $5.51
In Stock
Lawn & Garden Equipment Engine Recoil Starter Pulley (replaces 263074, 281504, Bs-498144) 498144

#56

All parts diagram

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 Recoil Starter (replaces Bs-497680) 497680

#608

All parts diagram

Lawn & garden equipment engine recoil starter (replaces bs-497680)

Part #497680

BEST SELLER
$96.35
11% OFF Phone Price : $108.35
In Stock
Grip-str Rpe 281434

#60

All parts diagram

Grip-str rpe

Part #281434

Replaced by #281434S

?
Manufacturer substitution
This part replaces 281434. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.34
14% OFF Phone Price : $7.34
In Stock
Pawl 281505

#459

All parts diagram

Pawl

Part #281505

Replaced by #281505S

?
Manufacturer substitution
This part replaces 281505. Substitute parts can look different from the original.
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

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
Retainer 281503

#456

All parts diagram

Retainer

Part #281503

Replaced by #692299

?
Manufacturer substitution
This part replaces 281503. Substitute parts can look different from the original.
This item is not returnable
$7.89
11% OFF Phone Price : $8.89
In Stock
Muffler 496106

#300

All parts diagram

Muffler

Part #496106

Replaced by #692038

?
Manufacturer substitution
This part replaces 496106. Substitute parts can look different from the original.
$44.59
12% OFF Phone Price : $50.59
In Stock
Screw 94744

#305

All parts diagram

Screw

Part #94744

Replaced by #691108

?
Manufacturer substitution
This part replaces 94744. Substitute parts can look different from the original.
This item is not returnable
$5.09
16% OFF Phone Price : $6.09
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

Main causes: punctured tire, damaged rim…

Main causes: dirty carburetor, stale fuel…

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Repair guides for gas snowblowers

These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

How to replace a snowblower fuel filter

How to replace a snowblower fuel filter

Replace the fuel filter on your snowblower if it's clogged or damaged.…

Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower shave plate

How to replace a snowblower shave plate

Follow the 7 easy steps in this repair guide/video to replace a worn out shave plate on your snowblower.…

Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower chute control gearbox assembly

How to replace a snowblower chute control gearbox assembly

Replace the chute control gearbox on your snowblower if it's stripped or damaged.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your snowblower.

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.…