Briggs & Stratton
Lawn & Garden Engine

Model # 12H800 TO 12H899 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 12H800-TO-12H899 engine, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 256 parts  |

Lawn & Garden Equipment Engine Air Filter 491588
#967

Air cleaner assembly and cover diagram

Lawn & garden equipment engine air filter

Part #491588

Replaced by #491588S

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Manufacturer substitution
This part replaces 491588. Substitute parts can look different from the original.
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$9.24
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Carburetor Primer 496115
#976

Air cleaner assembly and cover diagram

Carburetor primer

Part #496115

Replaced by #694395

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Manufacturer substitution
This part replaces 496115. Substitute parts can look different from the original.
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This item is not returnable
$5.24
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Lawn & Garden Equipment Engine Carburetor Rebuild Kit (replaces 493762, 498261) 498260
#121

Gasket set/valve overhaul gasket set/carburetor kit diagram

Lawn & garden equipment engine carburetor rebuild kit (replaces 493762, 498261)

Part #498260

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Carburetor 490937
#977A

Gasket set/valve overhaul gasket set/carburetor kit diagram

Carburetor

Part #490937

Replaced by #498260

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Manufacturer substitution
This part replaces 490937. Substitute parts can look different from the original.
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Carburetor Kit 493762
#121A

Gasket set/valve overhaul gasket set/carburetor kit diagram

Carburetor kit

Part #493762

Replaced by #498260

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Manufacturer substitution
This part replaces 493762. Substitute parts can look different from the original.
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Gasket Set-c 498261
#977

Gasket set/valve overhaul gasket set/carburetor kit diagram

Gasket set-c

Part #498261

Replaced by #498260

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Manufacturer substitution
This part replaces 498261. Substitute parts can look different from the original.
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Fuel Pipe 492790
#187

Fuel tank assembly diagram

Fuel pipe

Part #492790

Replaced by #791766

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Manufacturer substitution
This part replaces 492790. Substitute parts can look different from the original.
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Fuel Filter (red) 298090
#240

Fuel tank assembly diagram

Fuel filter (red)

Part #298090

Replaced by #298090S

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Manufacturer substitution
This part replaces 298090. Substitute parts can look different from the original.
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$5.31
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Tank 495224
#972

Fuel tank assembly diagram

Tank

Part #495224

Replaced by #699374

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Manufacturer substitution
This part replaces 495224. Substitute parts can look different from the original.
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$58.46
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Lawn & Garden Equipment Engine Recoil Starter Pulley (replaces 263074, 281504, Bs-498144) 498144
#56

Rewind starter diagram

Lawn & garden equipment engine recoil starter pulley (replaces 263074, 281504, bs-498144)

Part #498144

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Symptoms for window air conditioners

Choose a symptom to see related window air conditioner repairs.

Main causes: bad compressor, lack of refrigerant, bad compressor start relay, electronic control board failure…

Main causes: clogged drain hole, air conditioner not leveled properly…

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Main causes: dirty air filter, air conditioner is too small for the room, temperature set too cold, control failure…

Main causes: turning the air conditioner off and the back on too quickly, dirty or restricted condenser coil, compressor…

Main causes: lack of electrical power, bad electronic control board, wiring failure, bad temperature sensor…

Repair guides for window air conditioners

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

How to replace a window air conditioner ambient thermistor

How to replace a window air conditioner ambient thermistor

If your window air conditioner isn’t cooling properly, it might need a new ambient thermistor. You can replace it yourse…

Repair difficulty
Time required
 45 minutes or less
How to replace a window air conditioner user interface control board

How to replace a window air conditioner user interface control board

Control buttons or lights on the user interface control board can stop working. This repair guide shows how to replace i…

Repair difficulty
Time required
 30 minutes or less
How to replace a window air conditioner condenser fan

How to replace a window air conditioner condenser fan

If the condenser fan blade is broken or the condenser fan motor won’t run, you can replace the broken parts yourself by…

Repair difficulty
Time required
 90 minutes or less

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