Craftsman
Lawn & Garden Engine

Model # 143963504 Official Craftsman engine

Here are the diagrams and repair parts for Official Craftsman 143963504 engine, as well as links to manuals and error code tables, if available.

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Showing 10 of 110 parts  |

Needle Seat 631021
#30

Carburetor 632046a diagram

Needle seat

Part #631021

Replaced by #631021B

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Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
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Troybilt Lawn & Garden Equipment Engine Carburetor Gasket (replaces 27141) 26756
#184

Engine 143.963504 diagram

Troybilt lawn & garden equipment engine carburetor gasket (replaces 27141)

Part #26756

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Starter 590694
#390

Engine 143.963504 diagram

Starter

Part #590694

Replaced by #590785

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This part replaces 590694. Substitute parts can look different from the original.
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Line 34357
#290

Engine 143.963504 diagram

Line

Part #34357

Replaced by #29774

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This part replaces 34357. Substitute parts can look different from the original.
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Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#292

Engine 143.963504 diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

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Carburetor 632046A
Carburetor

Part #632046A

Replaced by #632795A

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Manufacturer substitution
This part replaces 632046A. Substitute parts can look different from the original.
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Troybilt Lawn & Garden Equipment Engine Flywheel Key (replaces 02-403) 611004
#89

Engine 143.963504 diagram

Troybilt lawn & garden equipment engine flywheel key (replaces 02-403)

Part #611004

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Generac Lawn & Garden Equipment Engine Stop Wire Terminal 610973
#195

Engine 143.963504 diagram

Generac lawn & garden equipment engine stop wire terminal

Part #610973

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Lawn & Garden Equipment Engine Oil Drain Plug (replaces 30572) 36083
#72

Engine 143.963504 diagram

Lawn & garden equipment engine oil drain plug (replaces 30572)

Part #36083

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Fuel Fitting 631775
#16

Carburetor 632046a diagram

Fuel fitting

Part #631775

Replaced by #632527

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This part replaces 631775. Substitute parts can look different from the original.
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Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Main causes: punctured tire, damaged rim…

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Main causes: dirty carburetor, stale fuel…

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

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How to rebuild a snowblower carburetor

How to rebuild a snowblower carburetor

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Repair difficulty
Time required
 45 minutes or less

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