VANGUARD 24,6 Gross kW EFI/ETC
V-TWIN VERTICAL SHAFT COMMERCIAL ENGINE
CONSISTENT POWER, EXCEPTIONAL DURABILITY
The Vanguard® 24,6 Gross kW EFI/ETC vertical shaft engine, part of the powerful BIG BLOCK™ series, delivers 33 HP of fuel-efficient performance. Designed for tough ride-on applications, this engine provides consistent power and exceptional durability. Equipped with advanced Electronic Fuel Injection (EFI) and Electronic Throttle Control (ETC), it optimizes fuel efficiency, improves load response, and ensures smooth operation across varying conditions. Perfect for demanding applications such as zero-turn mowers, utility vehicles, and other commercial equipment, this Vanguard BIG BLOCK™ combines robust performance with low maintenance, helping professionals achieve superior results with minimal downtime.
Power for tough turf task
Ideal for zero-turn and other heavy-duty commercial turf equipment.
Durable & resistant
Built to withstand demanding conditions, ensuring long-lasting performance and reliability.
Low maintenance
Designed for easy access and servicing, reducing downtime and maintenance effort.
Peformance right on point
Thanks to EFI and ETC, this Vanguard engine offers enhanced starting, improved performance, and better fuel efficiency.
OilGuard™
Extends oil maintenance intervals from 100hr to 500hr resulting in maximized equipment up-time.
DISCOVER THE BENEFITSV-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.
Maximum Durability
Engine block designed to provide superior durability. Cast iron cylinder sleeve adds integrity and durability that withstands wear and abuse while providing improved oil control.
Improved User Experience
Engineered design for minimum vibration leading to better user comfort. The addition of the dynamically balanced crankshaft and flywheel plus the automotive grade pistons results lower noise, vibration, oil consumption, emissions and wear.
Computer Controlled Electronic Ignition
Quick dependable starts with no maintenance required.
Superior Air Management
Five inch centrifugal multi-stage air cleaner for maximum engine protection, especially under dirty and dusty conditions. The innovative debris chopper fan significantly reduces engine oil and head temperatures.
Oil Guard™(Optional)
The Oil Guard technology exclusive to Vanguard extends oil maintenance intervals from 100 to 500 hours, reducing significantly the time and costs associated with oil maintenance 60% savings* on oil maintenance- and providing enhanced oil protection.
Extended Engine Life
Maximum lubrication and critical engine components protection. The spin-on filter keeps oil cleaner for an extended engine life.
Electronic Throttle Control (ETC)
Reacts instantly to any applied load from its environment to maintain smooth, consistent power in any condition.
Electronic Fuel Injection (EFI)
Optimizes fuel injection and spark timing so the EFI engine delivers significant fuel savings, greater efficiency, easier starting and higher productivity.
*Per season, per unit. Cost savings based on standard oil maintenance with 100 hour interval versus Oil Guard™ 500 hour service interval.
POPULAR MARKETS & APPLICATIONS
Landscape & Agriculture
Vanguard engines deliver rugged reliability to boost productivity on the farm. Designed to maximize uptime, they help farmers cover more acres efficiently, season after season.
Example applications:
 Riding Mowers, Lawn Tractors |
Commercial Turf
From heavy-duty zero-turn mowers to commercial-grade blowers, Vanguard delivers the easy-to-maintain power needed to keep turf professionals ahead.
Example applications:
| Riding Mowers, Zero-Turn-Mower |
Rental
Easy-starting and maximum uptime—just what fleets need. Vanguard’s power solutions are backed by a strong training program for superior service and maintenance.
Example applications:
| Lawn Tractors, Zero-Turn-Mower |
Our various partners trusted in Vanguard power solutions and experienced a great succes.
You want to know how they did?
DISCOVER OUR CASE STUDIES
| Eingine Type | V-Twin, 4-stroke, air-cooled, OHV (Overhead Valve) |
| Model Number | 61A6 |
| Gross kW* @ 3'600 rpm | 24,6 |
| Gross HP* @ 3'600 rpm | 33,0 |
| Displacement (cc) | 993 |
| Cylinder | Cast iron sleeve |
| Bore & Stroke (mm) | 85,5 x 86,5 |
| Fuel Tank Capacity (l) | NA |
| Oil Capacity (l) | 2,3 |
| Compression Ratio | 8.2:1 |
| Air Cleaner | Five-Inch Cyclonic Air Cleaner |
| Ignition System | Computer Controlled Battery Ignition |
| Lubrication System | Full Pressure Lubrication with Oil Filter |
| Dimensions L x W x H (mm) | 379 x 496 x 725 |
| Dry Weight (kg) | 56,7 |
| Optional |
|
| Warranty | Three year limited commercial engine warranty for all applications. Get more information about our warranties. |
| Operator Manuals | |
| All Vanguard engine specifications are European Stage 5 and EPA Phase 3 emissions compliant. | |
* Power levels are stated gross kilowatts per SAE J1940 as rated by Briggs & Stratton.
** See operator's manual or dealer for complete warranty details.
Power Curve
33 HP GROSS POWER*
* Power Ratings: The gross power rating for individual gasoline engine models is labelled in accordance with SAE (Society of Automotive Engineers) code J1940 Small Engine Power & Torque Rating Procedure, and is rated in accordance with SAE J1995. Torque values are derived at 2600 RPM for those engines with "rpm" called out on the label and 3060 for all others; horsepower values are derived at 3600 RPM. The gross power curves can be viewed at www.briggsandstratton.com. Net power values are taken with exhaust and air cleaner installed whereas gross power values are collected without these attachments. Actual gross engine power will be higher than net engine power and is affected by, among other things, ambient operating conditions and engine-to-engine variability. Given the wide array of products on which engines are placed, the gasoline engine may not develop the rated gross power when used in a given piece of power equipment. This difference is due to a variety of factors including, but not limited to.the variety of engine components (air cleaner, exhaust. charging, cooling, carburettor. fuel pump, etc.), application limitations, ambient operating conditions (temperature, humidity, altitude), and engine-to-engine variability. Due to manufacturing and capacity limitations, Briggs & Stratton may substitute an engine of higher rated power for this engine.
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