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Briggs & Stratton
Lawn & Garden Engine

Model # 121700 TO 121799 (4006-4009) Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 121700-TO-121799-4006-4009 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 291 parts  |
Lawn & Garden Equipment Engine Air Filter 491588
#967

Filter/base - air cleaner 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
#387

Filter/base - air cleaner 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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Carburetor 490937
#977

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
#121

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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Carburetor 492495
#121A

Gasket set/carburetor kit diagram

Carburetor

Part #492495

Replaced by #498260

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Manufacturer substitution
This part replaces 492495. Substitute parts can look different from the original.
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$24.53 | 
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Fuel Pipe 492790
#187

Seal, o-ring/lin-fuel 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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$9.59 | 
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Spark Plug 492167
#337C

Cylinder/intake - manifold diagram

Spark plug

Part #492167

Replaced by #J19LM

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Manufacturer substitution
This part replaces 492167. Substitute parts can look different from the original.
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$4.80 | 
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Lawn & Garden Equipment Engine Carburetor Float (replaces Bs-398187) 398187
Lawn & garden equipment engine carburetor float (replaces bs-398187)

Part #398187

This item is not returnable
$11.96 | 
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Muffler 490547
#300

Gasket-muffler diagram

Muffler

Part #490547

Replaced by #692038

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Manufacturer substitution
This part replaces 490547. Substitute parts can look different from the original.
$44.59 | 
12% OFF Phone Price : $50.59
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Oil Fill Cap 493950
#523A

Seal, o-ring/lin-fuel diagram

Oil fill cap

Part #493950

Replaced by #499621

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Manufacturer substitution
This part replaces 493950. Substitute parts can look different from the original.
This item is not returnable
$24.80 | 
19% OFF Phone Price : $30.80
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