Briggs & Stratton Vanguard Twin Cylinder Vertical OHV Engine — 810cc, 1in. x 3 5/32in. Shaft, Model# 49R977-0003-G1

Product Summary

This Briggs & Stratton Vanguard Vertical OHV Engine establishes a new standard for zero-turn engine displacement, delivering superior balance, low vibration, low emissions, improved valve life, great fuel economy and a high HP rating. This commercial-grade 810cc V-twin engine includes a long lasting Dura-Bore® cast iron cylinder sleeve, plus an exhaust overhead valve design (OHV) for cooler operation and long valve life. Designed for use with commercial zero-turn riding lawn mowers. Muffler not included. Not for sale in CA.

What’s Included

•  (1) Engine

Product Manual

Features + Benefits

• Commercial-grade 810cc Briggs & Stratton Vanguard twin cylinder engine with 26 HP rating
• Centrally located oil pump and pickup for faster priming and the ability for a higher angle of operation
• Oil cooler reduces oil temperature, improves lubrication, and extends the interval between oil changes
• Heavy-duty cylinder and sump engine block designed to provide superior durability
• Durable head and valve train design valve and seat materials are uniquely matched to run under the most severe conditions
• Automotive grade pistons with forged connection 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 under higher combustion pressures
• 5-Inch centrifugal multi-stage air cleaner provides maximum engine protection, especially under dirty and dusty conditions

• Innovative debris chopper fan
• Dura-Bore™ cast iron cylinder sleeve withstands wear while providing improved oil control
• Full pressure lubrication with spin-on oil filter cleans oil and protects engine components to ensure maximum lubrication and long life
• Industrial grade solenoid shift starter provides quick reliable starts
• Mechanical compression release for smooth, easy starts and instant return to maximum power after starting
• Magnetron® Electronic Ignition delivers quick, dependable starts with no maintenance required
• Cooling fin inspection panels enables quick debris inspection and cleaning
• Engineered resin blower housing and phase modulated flywheel fan lowers noise level and improves sound quality
• Buyer protection package provides 3-year limited engine warranty for all applications

Key Specs