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 # 445577-1187-B1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 445577-1187-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 217 parts  |
Briggs & Stratton Lawn And Garden Equipment Engine Oil Filter (replaces 697547, 795890, Bs-696854) 696854
#1027

Engine sump/lubrication diagram

Briggs & stratton lawn and garden equipment engine oil filter (replaces 697547, 795890, bs-696854)

Part #696854

BEST SELLER
$18.47 | 
10% OFF Phone Price : $20.47
In Stock
Lawn & Garden Equipment Engine Fuel Line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499) 791766
#187A

Alternator/starter/fuel supply diagram

Lawn & garden equipment engine fuel line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499)

Part #791766

BEST SELLER
$9.30 | 
10% OFF Phone Price : $10.30
In Stock
Lawn & Garden Equipment Engine Foam Air Pre-filter (replaces 273638, 691016, Bs-273638s) 273638S
#967

Air cleaner/blower housing diagram

Lawn & garden equipment engine foam air pre-filter (replaces 273638, 691016, bs-273638s)

Part #273638S

BEST SELLER
$7.60 | 
12% OFF Phone Price : $8.60
In Stock
Lawn & Garden Equipment Engine Oil Seal (replaces 791892, Bs-795387) 795387
Lawn & garden equipment engine oil seal (replaces 791892, bs-795387)

Part #795387

BEST SELLER
$9.02 | 
10% OFF Phone Price : $10.02
In Stock
Lawn & Garden Equipment Engine Flywheel Key (replaces 222698, 690974, Bs-222698s) 222698S
#24

Cylinder/crankshaft/camshaft diagram

Lawn & garden equipment engine flywheel key (replaces 222698, 690974, bs-222698s)

Part #222698S

BEST SELLER
This item is not returnable
$3.29 | 
23% OFF Phone Price : $4.29
In Stock
Lawn & Garden Equipment Engine Starter Pinion Gear (replaces 693058, 693059, 75264) 695708
#783

Alternator/starter/fuel supply diagram

Lawn & garden equipment engine starter pinion gear (replaces 693058, 693059, 75264)

Part #695708

BEST SELLER
$8.20 | 
11% OFF Phone Price : $9.20
In Stock
Lawn & Garden Equipment Engine Intake Valve Push Rod (replaces 498746) 690982
#1026A

Cylinder head/gasket set diagram

Lawn & garden equipment engine intake valve push rod (replaces 498746)

Part #690982

BEST SELLER
$9.91 | 
9% OFF Phone Price : $10.91
In Stock
Lawn & Garden Equipment Engine Fuel Pump Vacuum Hose (replaces 691040) 694000
#918A

Cylinder head/gasket set diagram

Lawn & garden equipment engine fuel pump vacuum hose (replaces 691040)

Part #694000

BEST SELLER
This item is not returnable
$6.89 | 
13% OFF Phone Price : $7.89
In Stock
Lawn & Garden Equipment Engine Carburetor (replaces 499809, 699709, Bs-791230) 791230
#125

Carburetor diagram

Lawn & garden equipment engine carburetor (replaces 499809, 699709, bs-791230)

Part #791230

$176.96 | 
6% OFF Phone Price : $188.96
In Stock
Lawn & Garden Equipment Engine Fuel Pump Vacuum Hose (replaces Bs-793147) 793147
#918

Cylinder head/gasket set diagram

Lawn & garden equipment engine fuel pump vacuum hose (replaces bs-793147)

Part #793147

This item is not returnable
$14.79 | 
12% OFF Phone Price : $16.79
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Symptoms for top-mount refrigerators

Why is there water in the bottom of the fridge under vegetable drawers?

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Read more

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace the compressor run capacitor in a top-freezer refrigerator

How to replace the compressor run capacitor in a top-freezer refrigerator

The run capacitor sends electric current to the compressor motor to help the motor run efficiently. Replace the run capa…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace the defrost thermistor in a top-freezer refrigerator

How to replace the defrost thermistor in a top-freezer refrigerator

The defrost thermistor attaches to the evaporator coil and measures the evaporator coil temperature during defrost.…

Read more
Repair difficulty
Time required
 15 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