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    40.0 Gross HP* EFI/ETC

    40.0 Gross HP* EFIETC
    40.0 Gross HP* EFIETC
    40.0 Gross HP* EFIETC
    40.0 Gross HP* EFIETC

    40.0 Gross HP* EFI/ETC

    You demanded more power, whether powering commercial zero-turn mowers, concrete trowels, mud boats or more. Vanguard BIG BLOCK V-Twin engines continue to prove themselves in an array of demanding applications. The 40.0 Gross HP* / 993cc EFI/ETC features electronic fuel injection and electronic throttle control delivers consistent power and fuel efficiencies. The optional Oil Guard™ System allows you to go 500-hours between oil changes; saving time and money.

    40

    Horsepower (HP)

    993

    Displacement (cc)

    2

    No. of Cylinders

    GAS

    Fuel Type
    Feature

    Features

    Advanced Debris Management

    Experience enhanced engine performance and durability, even in the toughest dusty and dirty conditions. The multi-stage air cleaner, chopper fan and clean out panels keeps the engine running smooth and cool, ensuring long-lasting reliability and peak performance.

    High Efficiency Head Design

    Stay productive even in the toughest conditions with new, improved cylinder heads designed to keep your engine cooler for longer. With a 30-degree temperature reduction†, our High-Efficiency Head Design enhances cooling performance, helping extend engine life and maintain peak productivity. Additional cooling features, including extra fins and increased aluminum, further boost durability and reliability when you need it most.

    Vanguard EFI/ETC

    Achieve consistent power, optimize fuel efficiency, and improve starting performance with electronic fuel injection (EFI). With electronic throttle control (ETC), the engine instantly adjusts power to match any load, ensuring peak performance at all times.
    Learn more >>>

    Vanguard Oil Guard™ System (Optional)

    Unprecedented 500-Hour oil change intervals. This exclusive technology prolongs oil life while providing superior engine protection. Learn more >>>

    Specifications

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    Model
    61G8
    HP (gross) *
    40
    Engine Displacement (cc)
    993
    Engine Configuration
    Vertical
    Bore (in)
    3.37
    Stroke (in)
    3.41
    Weight (lbs)
    125
    Oil Capacity (oz)
    82
    Compression Ratio
    8.5:1
    Air Cleaner
    Five-Inch Cyclonic Air Cleaner
    Ignition System
    Computer Controlled Battery Ignition
    Lubrication System
    Full Pressure Lubrication System with Oil Cleaner
    Length (in)
    22.09
    Width (in)
    20.24
    Height (in)
    24.65
    Certified Power Rating
    Download Power Curve
    Commercial Engine Warranty**
    3 Year Limited
    Manuals
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadOperator's Manual - English, Spanish-Colombian, French-Canadian
    DownloadOperator's Manual - English, Spanish-Colombian, French-Canadian
    DownloadOperator's Manual - English, Spanish-Colombian, French-Canadian
    DownloadOperator's Manual - English, Spanish-Colombian, French-Canadian
    DownloadOperator's Manual - English, Spanish-Colombian, French-Canadian
    DownloadOperator's Manual - English, Spanish-Colombian, French-Canadian
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadRepair Manual - English
    DownloadOperator's Manual - Multi-Language
    DownloadOperator's Manual - Multi-Language
    DownloadOperator's Manual - Multi-Language
    DownloadOperator's Manual - Multi-Language
    DownloadOperator's Manual - Multi-Language
    DownloadOperator's Manual - Multi-Language
    DownloadIllustrated Parts List - English
    DownloadIllustrated Parts List - Chinese
    DownloadIllustrated Parts List - Japanese
    DownloadIllustrated Parts List - Chinese
    DownloadIllustrated Parts List - English
    DownloadIllustrated Parts List - English
    DownloadIllustrated Parts List - Chinese
    DownloadIllustrated Parts List - Chinese
    DownloadIllustrated Parts List - English
    DownloadIllustrated Parts List - English
    DownloadIllustrated Parts List - Chinese
    DownloadIllustrated Parts List - English
    DownloadIllustrated Parts List - Chinese
    DownloadIllustrated Parts List - Chinese
    DownloadIllustrated Parts List - English
    DownloadIllustrated Parts List - English

    *All power levels are stated horsepower per SAE J1940 as rated by Briggs & Stratton.
    **See operator's manual or dealer for complete warranty details.

    Support

    Download the operator's manual or illustrated parts list for your Vanguard™ engine by searching your engine model number.

    Find Manuals >

    Tips & Troubleshooting

    Have a question? Search our Frequently Asked Questions to find answers related to model specifications, routine maintenance, repair or troubleshooting.

    Search FAQs >

    Dealer Locator

    World class parts delivery, industry-leading global warranties and unparalleled service & training keeps your equipment out of the shop and on the jobsite.

    Find a Dealer >

    Commercial Limited Warranty

    Three-year commercial engine warranty for all applications. See operator's manual or dealer for complete warranty details.

    Learn More >

    Options

    Oil Guard™ System
    Alternators (20 & 20-50 amp)
    Oil Pressure Switch
    Straight Keyed Cranks (1-1/8" & 1-7/16" Diameters)
    High & Mid Mounted Mufflers
    Tach/Hour Meter with Check Engine Light

    Product Literature

    Get more detailed information on what you can expect from Vanguard® and our BIG BLOCK™ V-Twin engines by downloading our literature here.

    Learn more about Vanguard® EFI & ETC Technology and how it works by downloading our literature here.

    Learn more about the Vanguard® Oil Guard™ System by downloading our literature here.

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