Briggs & Stratton
Lawn & Garden Engine

Model # 120312-0143-E2 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 120312-0143-E2 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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Lawn & Garden Equipment Engine Air Filter (replaces 17211-2l8-000, 1759330, 1904481, 491588, 491588ms, 494245, 6.491-338, 691710, Bs-491588s) 491588S
#445

Air cleaner/exhaust diagram

Lawn & garden equipment engine air filter (replaces 17211-2l8-000, 1759330, 1904481, 491588, 491588ms, 494245, 6.491-338, 691710, bs-491588s)

Part #491588S

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Lawn & Garden Equipment Engine Fuel Filter (replaces 2173206, 2173206sm, 394358, 692064, 7014359, 7014359yp, 75213, Bs-394358s) 394358S
#240A

Carburetor/fuel supply diagram

Lawn & garden equipment engine fuel filter (replaces 2173206, 2173206sm, 394358, 692064, 7014359, 7014359yp, 75213, bs-394358s)

Part #394358S

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Lawn & Garden Equipment Engine Fuel Line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499) 791766
#187

Carburetor/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

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Lawn & Garden Equipment Engine Fuel Line 791866
#187C

Carburetor/fuel supply diagram

Lawn & garden equipment engine fuel line

Part #791866

Replaced by #791766

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Manufacturer substitution
This part replaces 791866. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Fuel Tank Cap (replaces 493988s, 792647) 795027
#957A

Carburetor/fuel supply diagram

Lawn & garden equipment engine fuel tank cap (replaces 493988s, 792647)

Part #795027

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Lawn & Garden Equipment Engine Fuel Tank Cap 792647
#957

Carburetor/fuel supply diagram

Lawn & garden equipment engine fuel tank cap

Part #792647

Replaced by #795027

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Manufacturer substitution
This part replaces 792647. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Carburetor Fuel Inlet Fitting (replaces 493496, Bs-692317) 692317
#186

Carburetor/fuel supply diagram

Lawn & garden equipment engine carburetor fuel inlet fitting (replaces 493496, bs-692317)

Part #692317

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Lawn & Garden Equipment Engine Pre-filter (replaces 273356, 281165, 690245, Bs-273356s) 273356S
#967A

Air cleaner/exhaust diagram

Lawn & garden equipment engine pre-filter (replaces 273356, 281165, 690245, bs-273356s)

Part #273356S

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Fuel Tank 694260
#972

Carburetor/fuel supply diagram

Fuel tank

Part #694260

Replaced by #799863

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This part replaces 694260. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Flywheel Key (replaces 222698, 690974, Bs-222698s) 222698S
#24

Camshaft/crankshaft/crankcase diagram

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

Part #222698S

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How to replace a blade clutch cable on a riding lawn mower

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Repair difficulty
Time required
 30 minutes or less
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How to replace a riding lawn mower blade drive belt

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 45 minutes or less

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