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Steele
Gas Snowblower

Model # SP-SB2421 Official Steele snow blower

Here are the diagrams and repair parts for Official Steele SP-SB2421 snow blower, 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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 208 parts  |
Steele Spacer SB2421-D-523-SZMR
#523

Auger housing diagram

Steele spacer

Part #SB2421-D-523-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Steele Scraper Blade SB2421-D-510-SZMR
#510

Auger housing diagram

Steele scraper blade

Part #SB2421-D-510-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Steele Snowblower Impeller SB2421-E-340-SZMR
#340

Gear case diagram

Steele snowblower impeller

Part #SB2421-E-340-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Nut, Flange Lock 3/8-24 SB2421-C-227-SZMR
#227

Drive diagram

Nut, flange lock 3/8-24

Part #SB2421-C-227-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Screw SB2421-A-25-5-SZMR
#25-5

Engine diagram

Screw

Part #SB2421-A-25-5-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Extension Spring SB2421-B-145-SZMR
#145

Frame diagram

Extension spring

Part #SB2421-B-145-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Screw, Tap 5/16-18 X.50 SB2421-A-25-3-SZMR
#25-3

Engine diagram

Screw, tap 5/16-18 x.50

Part #SB2421-A-25-3-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Screw SB2421-E-306-SZMR
#306

Gear case diagram

Screw

Part #SB2421-E-306-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Nut, 5/16-18 Nylock SB2421-I-584-SZMR
#584

Discharge chute diagram

Nut, 5/16-18 nylock

Part #SB2421-I-584-SZMR

The manufacturer no longer makes this part, and there's no substitute part

Hex Shaft Assembly SB2421-C-207-SZMR
#207

Drive diagram

Hex shaft assembly

Part #SB2421-C-207-SZMR

The manufacturer no longer makes this part, and there's no substitute part

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.…

Read more
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.…

Read more
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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