2023 Briggs & Stratton 37 HP Briggs Vanguard EFI Engine
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Overview
Product Features
Description
The Briggs & Stratton® Vanguard® BIG BLOCK™ EFI engine found on select Scag® mower models is a proven performer with power and reliability. Features include:
- V-Twin OHV technology.
- Advanced debris management.
- Dual ball bearings.
- Dura-Bore cast-iron cylinder sleeve.
- Oxygen sensor—closed-loop system.
- High-pressure fuel-pump module.
- Electric-control module (ECU).
- Full-pressure lubrication with spin-on oil filter.
- Centrally located oil pump and pickup.
- Oil cooler.
- Heavy-duty cylinder and sump.
- High-efficiency head design.
- Lightweight piston and ring package.
- Dynamically balanced crankshaft.
- Five-inch, centrifugal, multi-stage air cleaner.
- Industrial-grade solenoid shift starter.
- Magnetron® electronic ignition.
- Engineered-resin blower housing, phase-modulated flywheel fan, and large-volume Super Lo-Tone muffler.
SPECIFICATIONS
Model
61E8
HP (gross) *
37
Engine Displacement (cc)
993
Engine Configuration
Vertical
Bore (in)
3.37
Stroke (in)
3.41
Weight (lbs)
125
Oil Capacity (oz)
82
Compression Ratio
8.2:1
Air Cleaner
Five-Inch Cyclonic Air Cleaner
Ignition System
Computer Controlled Battery Ignition
Lubrication System
Full Pressure Lubrication System with Oil Cleaner
Length (in)
23.66
Width (in)
20.24
Height (in)
24.65
Commercial Engine Warranty**
3 Year Commercial Limited
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.
Full Pressure Lubrication with Spin-On Oil Filter
Cleans oil and protects engine components to ensure maximum lubrication and long life.
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.
Electric Control Module (ECU)
Allows for altitude compensation and optimized starting.
High Pressure Fuel Pump Module
Alcohol & Stale Fuel Resistance.
Engineered Resin Blower Housing, Phase Modulated Flywheel Fan & Large Volume Super Lo-Tone Muffler
Lowers noise level and improves sound quality.
Magnetron® Electronic Ignition
Quick dependable starts with no maintenance required
Dynamically Balanced Crankshaft
Minimizes engine noise and vibration.
Oil Cooler
Reduces oil temperature, improves lubrication and extends oil change intervals.
High Efficiency Head Design
Angled ports optimizes tumble and mixture preparation for improved efficiency, smoother idle, lower emissions and more power.
Five-Inch Centrifugal Multi-Stage Air Cleaner
Provides maximum engine protection, especially under dirty and dusty conditions.
Centrally Located Oil Pump and Pickup
Faster priming and allows for a higher angle of operation.
Heavy-Duty Cylinder and Sump
Engine block designed to provide superior durability.
Industrial Grade Solenoid Shift Starter
Quick reliable starts.
Service Solution
Suite of support and diagnostic tools allows for minimizing potential downtime.
Magnetron® Electronic Ignition
Fast, reliable and maintenance-free starting.
*All power levels are stated gross HP at 3,600 RPM per SAE J1940.
**See operator's manual or dealer for complete warranty details.
*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.
* Note: Engine specifications based upon manufacturer-supplied information. All specifications subject to change at any time without notice or obligation. Engine specifications may vary by model.