Troy-Bilt 123cc 4-Cycle Single Stage 21 in. 123cc 4-Cycle Single Stage 21 in. Snow Blower – 31A-2M5GB66. Troy-Bilt certified 123cc Pull-start 4-Cycle engine eliminates the need to mix oil and gas. High-performance auger design grips ground for maximum clearing power. Compact size for easier storage and maneuverability. E-Z chute control lets you change direction of snow discharge up to 190 Degree. No need to mix oil and gas with 4-Cycle engine. Designed to clear light snowfall of up to 6 in. WHY OUR CUSTOMERS KEEP SHOPPING WITH US. SECURE & HASSLE FREE SHOPPING. We are available 7 days a week. All corded products are designed to work with North American 110/120V outlets only.