BRIGGS & STRATTON I/C® Series 3.5 HP BRIGGS & STRATTON I/C® Series 5.0 HP BRIGGS & STRATTON Vanguard™ 6.5 Gross HP BRIGGS & STRATTON Vanguard™ 8.0 Gross HP BRIGGS & STRATTON Vanguard™ V-Twin 16.0 Gross HP BRIGGS & STRATTON Vanguard™ V-Twin 18.0 Gross HP BRIGGS & STRATTON Vanguard™ V-Twin 23.0 Gross HP BRIGGS & STRATTON Vanguard™ (V-Twin) 26.0 Gross HP BRIGGS & STRATTON Vanguard™ 27.0 Gross HP BRIGGS & STRATTON Vanguard™ 31.0 Gross HP BRIGGS & STRATTON Vanguard™ 35.0 Gross HP BRIGGS & STRATTON Vanguard 35.0HP BRIGGS & STRATTON 450™ Series BRIGGS & STRATTON 750 Series™ DOV® BRIGGS & STRATTON 875 Series™ BRIGGS & STRATTON Intek™ 12.5 Gross HP BRIGGS & STRATTON Commercial Turf Series™ 25.0 Gross HP BRIGGS & STRATTON Professional Series™ (V-Twin) 24.0 Gross HP BRIGGS & STRATTON Vanguard™ Air-cooled V-Twin BIG BLOCK™