28.0 Gross HP* 810cc EFI

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28.0 Gross HP* 810cc EFI

This commercial-grade v-twin EFI engine sets new standards for durability and reliability — including more efficient fuel performance and lower operating costs.

Features Vanguard Electronic Fuel Injection for added power and fuel economy.

> Learn why ProCare Landscape Management spec’d the Vanguard 28.0 Gross HP 810 cc EFI engine for their newest commercial mower.

Designed with debris- and air-management features that enhance durability and performance plus the Oil Guard™ system that improves lubrication, maximizes engine life and extends oil change intervals to save money. Find out how much here.
Backed by Vanguard’s 3-Year Commercial Warranty.

Horsepower (HP)

810

Displacement (cc)

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.

Vanguard EFI

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

Dura-Bore Cast Iron Cylinder Sleeve

Withstands wear while providing improved oil control.

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.

Durable Head & Valve Train Design

Valve and seat materials uniquely matched to run under the most severe conditions

Automotive Grade Pistons with Forged Connecting Rods

Lowers noise, vibration, oil consumption, emissions and wear

Forged Crankshaft

Incorporates heat-treated ball bearings to minimize friction and heat build-up

Fire Ring Head Gaskets

Motorsports design maintains seal of higher combustion pressures

Five-Inch Centrifugal Multi-Stage Air Cleaner

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

Innovative Debris Chopper Fan

Excellent debris management and up to 30-degree cooler engine temperatures.

Industrial Grade Solenoid Shift Starter

Quick reliable starts.

Mechanical Compression Release

Smooth, easy starts and instant return to maximum power after starting

Computer Controlled Electronic Ignition

Quick dependable starts with no maintenance required.

Cooling Fin Inspection Panels

Enables quick debris inspection and cleaning

Engineered Resin Blower Housing & Phase Modulated Flywheel Fan

Lowers noise level and improves sound quality

^{*All power levels are stated gross HP at 3,600 RPM per SAE J1940.

†Fuel savings may vary based on cutting conditions and other factors.}

Specifications

Model

49E8

HP (gross) *

Engine Displacement (cc)

810

Engine Configuration

Vertical

Bore (in)

3.3

Stroke (in)

2.89

Weight (lbs)

Oil Capacity (oz)

Compression Ratio

8.4:1

Air Cleaner

Five-Inch Cyclonic Air Cleaner

Ignition System

Computer Controlled Battery Ignition

Lubrication System

Full Pressure Lubrication with Oil Filter

Length (in)

19.94

Width (in)

18.53

Height (in)

22.89

Certified Power Rating

Download Power Curve

Warranty Commercial Power Source Info

3 Year Commercial Limited

Manuals

Operator's Manual - English, Bulgarian, Czech, Estonian, Croatian, Hungarian, Lithuanian, Latvian, Polish, Romanian, Russian, Slovak, Slovenian, Turkish
Download

Operator's Manual - English, Danish, Dutch, Finnish, French-European, Greek, Italian, German, Norwegian, Portuguese-European, Spanish-European, Swedish
Download

Illustrated Parts List - Chinese
Download

Illustrated Parts List - English

^{^{*All power levels are stated gross HP at 3,600 RPM per SAE J1940.
**See operator's manual or dealer for complete warranty details.} †Fuel savings may vary based on cutting conditions and other factors.}

Support

Options

Oil Guard
Alternator (16, 20)
Oil Pressure Switch
Straight Keyed & Tapered Cranks (1" & 1-1/8" Diameters)
Flexible Oil Drain Extension
Exhaust Mounting Studs
CARB Compliant Purge Ports
Low Mount Muffler

Product Literature

Get more detailed information on what you can expect from Vanguard^® and our Mid-Block V-Twin engines by downloading our literature here.

28.0 Gross HP* 810cc EFI

28.0 Gross HP* 810cc EFI

Horsepower (HP)

Displacement (cc)

No. of Cylinders

Fuel Type

Features

V-Twin OHV Technology

Advanced Debris Management

Vanguard EFI

Dura-Bore Cast Iron Cylinder Sleeve

Engine Warranty**

High Pressure Fuel Pump Module

Electric Control Module (ECU)

Service Solution

Full Pressure Lubrication with Spin-On Oil Filter

Centrally Located Oil Pump and Pickup

Oil Cooler

Heavy-Duty Cylinder and Sump

Durable Head & Valve Train Design

Automotive Grade Pistons with Forged Connecting Rods

Forged Crankshaft

Fire Ring Head Gaskets

Five-Inch Centrifugal Multi-Stage Air Cleaner

Innovative Debris Chopper Fan

Industrial Grade Solenoid Shift Starter

Mechanical Compression Release

Computer Controlled Electronic Ignition

Cooling Fin Inspection Panels

Engineered Resin Blower Housing & Phase Modulated Flywheel Fan

Specifications

Support

Manuals

Tips & Troubleshooting

Dealer Locator

Commercial Limited Warranty

Options

Product Literature