Briggs & Stratton
Lawn & Garden Engine

Model # 12S505-3856-B1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 12S505-3856-B1 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 163 parts  |

Lawn & Garden Equipment Engine Carburetor Primer Bulb (replaces 496115, Bs-694395) 694395

#976

All parts diagram

Lawn & garden equipment engine carburetor primer bulb (replaces 496115, bs-694395)

Part #694395

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Lawn & Garden Equipment Engine Recoil Starter Rope (replaces 692259) 697316

#58

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Lawn & garden equipment engine recoil starter rope (replaces 692259)

Part #697316

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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

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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 Air Filter (replaces 392672, 393365, 49245, 690610, Bs-697029) 697029

#445

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Lawn & garden equipment engine air filter (replaces 392672, 393365, 49245, 690610, bs-697029)

Part #697029

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Lawn & Garden Equipment Engine Spark Plug 692051

#337

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Lawn & garden equipment engine spark plug

Part #692051

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Lawn & Garden Equipment Engine Fuel Tank (replaces 693377, Bs-699374) 699374

#972

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Lawn & garden equipment engine fuel tank (replaces 693377, bs-699374)

Part #699374

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Lawn & Garden Equipment Engine Recoil Starter Pulley (replaces 263074, 281504, Bs-498144) 498144
Lawn & garden equipment engine recoil starter pulley (replaces 263074, 281504, bs-498144)

Part #498144

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Air Filter 273356

#967

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Air filter

Part #273356

Replaced by #273356S

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Manufacturer substitution
This part replaces 273356. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Recoil Starter (replaces Bs-497680) 497680

#608

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

Part #497680

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Grip-str Rpe 281434

#60

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Grip-str rpe

Part #281434

Replaced by #281434S

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This part replaces 281434. Substitute parts can look different from the original.
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Symptoms for gas cooktops

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

Repair guides for gas cooktops

How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Repair difficulty
Time required
 45 minutes or less
How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Repair difficulty
Time required
 30 minutes or less

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