2026 Briggs & Stratton 40 Gross hp Vanguard 993 OHV EFI Twin Commercial Vertical Shaft - 61G877-0015-J1

Factory Freight: $50.00

Crankshaft: 4.5", 1 1/8", Tapped 7/16-20, Keyway

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 to deliver consistent power and fuel efficiencies. The optional Oil Guard™ System allows you to go 500 hours between oil changes, saving time and money.

The original BIG BLOCK™ is reborn with upgrades designed to boost cooling by up to 60 degrees*, durability, and reliability. Key upgrades include:

New cylinder heads

More cooling fins with 1/2 lb. more aluminum

6X stronger valve seat retention force

New chopper fan and cooling fan

Upgraded starter motor

Redesigned wire harness