40.0 Gross HP* EFI/ETC

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

Features

V-Twin OHV Technology

Superior balance, low vibration, lower emissions, improved valve life, better fuel economy and higher HP/Weight.

Advanced Debris Management

Keeps engine clean and cool for enhanced durability and performance.

Dura-Bore Cast Iron Cylinder Sleeve

Withstands wear while providing improved oil control.

Vanguard EFI

Optimizes fuel injection and spark timing so the EFI engine delivers significant fuel savings, greater efficiency, easier starting and higher productivity.

Engine Warranty

Three year commercial engine warranty** for all applications.

High Pressure Fuel Pump Module

Alcohol & Stale Fuel Resistance.

Electric Control Module (ECU)

Allows for altitude compensation and optimized starting.

Service Solution

Suite of support and diagnostic tools allows for minimizing potential downtime.

Full Pressure Lubrication with Spin-On Oil Filter

Cleans oil and protects engine components to ensure maximum lubrication and long life.

Centrally Located Oil Pump and Pickup

Faster priming and allows for a higher angle of operation.

Oil Cooler

Reduces oil temperature, improves lubrication and extends oil change intervals.

Heavy-Duty Cylinder and Sump

Engine block designed to provide superior durability.

High Efficiency Head Design

Angled ports optimizes tumble and mixture preparation for improved efficiency, smoother idle, lower emissions and more power.

Dynamically Balanced Crankshaft

Minimizes engine noise and vibration.

Five-Inch Centrifugal Multi-Stage Air Cleaner

Provides maximum engine protection, especially under dirty and dusty conditions.

Industrial Grade Solenoid Shift Starter

Quick reliable starts.

Computer Controlled Electronic Ignition

Quick dependable starts with no maintenance required.

Engineered Resin Blower Housing, Phase Modulated Flywheel Fan & Large Volume Super Lo-Tone Muffler

Lowers noise level and improves sound quality.

Electronic Throttle Control

Reacts instantly to any applied load from its environment to maintain smooth, consistent power in any condition.

CAN J1939 Communication

Easier interface within industry standard ECU communication protocol.

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
Commercial Engine Warranty**
3 Year Limited

*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.

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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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