Lawn & Garden Engine

Model # 143964020 Official Craftsman engine

Here are the diagrams and repair parts for Official Craftsman 143964020 engine, as well as links to manuals and error code tables, if available.

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143964020 Engine
Needle Seat 631021
#12

Carburetor 632078a (71/143) 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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$9.79
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Lamination 34443A
#100

Engine (71/143) 143.964020 diagram

Lamination

Part #34443A

Replaced by #34443D

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Manufacturer substitution
This part replaces 34443A. Substitute parts can look different from the original.
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$41.40
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Tecumseh Lawn & Garden Equipment Engine Air Filter Cover (replaces 35986, B35065) 35065
#250

Engine (71/143) 143.964020 diagram

Tecumseh lawn & garden equipment engine air filter cover (replaces 35986, b35065)

Part #35065

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$9.69
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Carburetor 632078A
Carburetor

Part #632078A

Replaced by #632795A

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Manufacturer substitution
This part replaces 632078A. Substitute parts can look different from the original.
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$76.19
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Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#292

Engine (71/143) 143.964020 diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

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Troybilt Lawn & Garden Equipment Engine Air Filter Collar Gasket 34338
#239

Engine (71/143) 143.964020 diagram

Troybilt lawn & garden equipment engine air filter collar gasket

Part #34338

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Float 632019
#14

Carburetor 632078a (71/143) diagram

Float

Part #632019

Replaced by #632019A

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Manufacturer substitution
This part replaces 632019. Substitute parts can look different from the original.
This item is not returnable
$8.89
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Primer Assembly 632047
#9

Carburetor 632078a (71/143) diagram

Primer assembly

Part #632047

Replaced by #632047A

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Manufacturer substitution
This part replaces 632047. Substitute parts can look different from the original.
This item is not returnable
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Troybilt Lawn & Garden Equipment Engine Oil Seal 27897
#75

Engine (71/143) 143.964020 diagram

Troybilt lawn & garden equipment engine oil seal

Part #27897

This item is not returnable
$7.02
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Lawn & Garden Equipment Engine O-ring 34265
#306

Engine (71/143) 143.964020 diagram

Lawn & garden equipment engine o-ring

Part #34265

Replaced by #36832

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Manufacturer substitution
This part replaces 34265. Substitute parts can look different from the original.
This item is not returnable
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Symptoms for table saws

Choose a symptom to see related table saw repairs.

Main causes: worn motor brushes, faulty drive motor, using an improper extension cord…

Main causes: lack of power, broken on/off switch, bad motor overload, broken power cord, bad drive motor…

Main causes: saw dust build up, blade elevating and tilting mechanisms need lubrication…

Main causes: blade alignment needs adjustment, worn blade, bevel positive stops need adjustments, bevel pointer needs ad…

Main causes: worn motor brushes, bad drive motor, faulty overload switch, using an improper extension cord, binding saw …

Main causes: dirty saw blade, dull or damaged saw blade, blade alignment needs adjustment…

Repair guides for table saws

These step-by-step repair guides will help you safely fix what’s broken on your table saw.

How to adjust a table saw blade

How to adjust a table saw blade

If the table saw isn’t cutting parallel to the miter gauge groove, adjust the cutting blade following the instructions i…

Repair difficulty
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 30 minutes or less
How to replace a table saw drive motor

How to replace a table saw drive motor

You can replace a table saw drive motor that is weak or won't run. Here’s how.…

Repair difficulty
Time required
 45 minutes or less
How to replace a table saw blade

How to replace a table saw blade

If the table saw blade is dull or damaged, use these simple steps to replace it.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

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