Gas Snowblower

Model # 31AH7T74101 Official Troybilt snow thrower

Here are the diagrams and repair parts for Official Troybilt 31AH7T74101 snow thrower, as well as links to manuals and error code tables, if available.

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31AH7T74101 Snowblowers
Mtd Toro Lawn & Garden Equipment Carriage Bolt (replaces 753-08024, 910-0451) 710-0451
Mtd toro lawn & garden equipment carriage bolt (replaces 753-08024, 910-0451)

Part #710-0451

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Knob Wing Nut 720-0284
#12

Shift arm assembly diagram

Knob wing nut

Part #720-0284

Replaced by #720-04072A

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$9.33
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Yard Machines Lawn & Garden Equipment Bell Washer (replaces 936-0242) 736-0242
Yard machines lawn & garden equipment bell washer (replaces 936-0242)

Part #736-0242

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Extension Cord 629-0071
#26

Engine shroud assembly diagram

Extension cord

Part #629-0071

Replaced by #929-0071B

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This part replaces 629-0071. Substitute parts can look different from the original.
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Sears Lawn Tractor Screw 710-0627
#4

Engine shroud assembly diagram

Sears lawn tractor screw

Part #710-0627

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$6.47
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Lawn & Garden Equipment Hex Head Screw 710-0895
#31

Shift arm assembly diagram

Lawn & garden equipment hex head screw

Part #710-0895

$8.20
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Lawn Tractor Screw, 1/4-20 X 5/8-in (replaces 910-1652) 710-1652
Lawn tractor screw, 1/4-20 x 5/8-in (replaces 910-1652)

Part #710-1652

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$5.44
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Snowblower Flange Bearing 741-0493A
#40

Gear assembly diagram

Snowblower flange bearing

Part #741-0493A

Replaced by #741-0493C

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Manufacturer substitution
This part replaces 741-0493A. Substitute parts can look different from the original.
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Chute Adapter 731-1379C
#37

Shift arm assembly diagram

Chute adapter

Part #731-1379C

Replaced by #731-1379A

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This part replaces 731-1379C. Substitute parts can look different from the original.
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$22.56
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Clean-out Tool 731-2643
#22

Gear assembly diagram

Clean-out tool

Part #731-2643

Replaced by #931-2643

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This part replaces 731-2643. Substitute parts can look different from the original.

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$25.67
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Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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

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

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: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

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

Main causes: dirty carburetor, stale fuel…

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

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

Repair guides for gas snowblowers

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

How to adjust snowblower engine valve lash

How to adjust snowblower engine valve lash

Adjust the engine valve lash on your snowblower to keep the engine starting and running smoothly.…

Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower auger drive cable

How to replace a snowblower auger drive cable

A loose or snapped auger drive cable can prevent the auger from rotating. Follow this step-by-step guide to replace the …

Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower friction disc

How to replace a snowblower friction disc

The friction disc is one of the components of the drive system. If it's worn or damaged, the snowblower won't self-prope…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your snowblowers

Use the advice and tips in these articles and videos to get the most out of your snowblower.

Snowblower won’t start – 4 easy DIY fixes

Snowblower won’t start – 4 easy DIY fixes

Find easy DIY tips to fix your snowblower when it won't start…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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