Designed for power and performance, the commercial-grade 196cc Troy-Bilt® engine on the TB420K XP all-wheel drive mower is covered by a 5-yr. Limited warranty. All-wheel drive transmission adapts to mowing conditions, allowing you to switch between front-, rear- or all-wheel drive quickly. Quickly rinse grass clippings under the deck using the deck-wash port after each mow. Designed to connect with standard-size garden hoses, regular rinsing can also help minimize build-up under the deck. A rugged 21" steel cutting deck has a rear bag, mulching, and side discharge options included to help keep the lawn clear of clippings and leaves.