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Gas Snowblower

Model # 621450X4 Official Murray snow thrower

Here are the diagrams and repair parts for Official Murray 621450X4 snow thrower, as well as links to manuals and error code tables, if available.

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Browse Parts for621450X4 Snowblowers

    Symptoms for gas snowblowers

    Choose a symptom to see related snowblower repairs.

    Main causes: punctured tire, damaged rim…

    Main causes: dirty carburetor, stale fuel…

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

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

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

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

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

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

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

    Repair guides for gas snowblowers

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

    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.…

    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.…

    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.…

    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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