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Troybilt
Gas Snowblower

Model # 42000 Official Troybilt 21" 5-hp snow thrower

Here are the diagrams and repair parts for Official Troybilt 42000 21" 5-hp snow thrower, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 231 parts  |
Screw 1724491
#69

Auger assembly diagram

Screw

Part #1724491

Replaced by #710-1260A

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Manufacturer substitution
This part replaces 1724491. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.34 | 
19% OFF Phone Price : $5.34
In Stock
Washer 1100255
Washer

Part #1100255

Replaced by #736-0262

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Manufacturer substitution
This part replaces 1100255. Substitute parts can look different from the original.
This item is not returnable
$5.11 | 
16% OFF Phone Price : $6.11
In Stock
Murray Lawn Tractor Spring 792079
#42

Transmission assembly diagram

Murray lawn tractor spring

Part #792079

This item is not returnable
$3.40 | 
23% OFF Phone Price : $4.40
In Stock
Washer 780072
#29

Transmission assembly diagram

Washer

Part #780072

Replaced by #780072

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Manufacturer substitution
This part replaces 780072. Substitute parts can look different from the original.
This item is not returnable
$3.40 | 
23% OFF Phone Price : $4.40
In Stock
Push Cap 1724791
#1

Auger assembly diagram

Push cap

Part #1724791

Replaced by #726-0100

?
Manufacturer substitution
This part replaces 1724791. Substitute parts can look different from the original.
This item is not returnable
$7.43
In Stock
Lock Nut 1732499
#15

Auger assembly diagram

Lock nut

Part #1732499

Replaced by #712-3004A

?
Manufacturer substitution
This part replaces 1732499. Substitute parts can look different from the original.
This item is not returnable
$4.92 | 
17% OFF Phone Price : $5.92
In Stock
Lawn & Garden Equipment Screw 792078
#41

Transmission assembly diagram

Lawn & garden equipment screw

Part #792078

This item is not returnable
$4.37
In Stock
Input Shaft 776135
#18

Transmission assembly diagram

Input shaft

Part #776135

Replaced by #776135

?
Manufacturer substitution
This part replaces 776135. Substitute parts can look different from the original.
$33.59 | 
15% OFF Phone Price : $39.59
In Stock
Screw 1100811
#72

Auger assembly diagram

Screw

Part #1100811

Replaced by #710-0606

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Manufacturer substitution
This part replaces 1100811. Substitute parts can look different from the original.
This item is not returnable
$8.21 | 
11% OFF Phone Price : $9.21
In Stock
Paint Red 1900706
#200

Tractor assembly diagram

Paint red

Part #1900706

Replaced by #788-0638A

?
Manufacturer substitution
This part replaces 1900706. Substitute parts can look different from the original.
This item is not returnable
$32.42
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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What should I do about a damaged snowblower tire?

Main causes: punctured tire, damaged rim…

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Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

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Why does my snowblower engine run rough?

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

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Why won't my snowblower start?

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

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Why won't my snowblower chute turn?

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

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Why doesn't my snowblower self propel?

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

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Why won't my snowblower throw snow far enough?

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

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Why doesn't my snowblower auger turn?

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

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How do I tune up my snowblower?

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

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Repair guides for gas snowblowers

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

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How to replace a snowblower fuel filter

How to replace a snowblower fuel filter

Replace the fuel filter on your snowblower if it's clogged or damaged.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower shave plate

How to replace a snowblower shave plate

Follow the 7 easy steps in this repair guide/video to replace a worn out shave plate on your snowblower.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower chute control gearbox assembly

How to replace a snowblower chute control gearbox assembly

Replace the chute control gearbox on your snowblower if it's stripped or damaged.…

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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.

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How to make your snowblower last longer

How to make your snowblower last longer

Learn the steps to take to adjust and maintain your snowblower so it lasts longer.…

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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.…

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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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