John Deere Lawn Tractor Wiring - The tractor is powered by a John Deere iTorque™ power system, a combination of engine features and an exclusive hood design that provides superior lugging ability, even cooling, and durability.. Find the latest features and pricing on the John Deere E120 Lawn Tractor with 42-in. Deck. This lawn tractor also includes the John Deere Easy Change™ 30-second oil change system that makes changing the engine oil easy, quick, and clean.. Images file not found or can not be opened. Be sure to visit the JohnnyPopper.com Discussion Boardwith lots of useful information on models, repairs, parts, and add your questions or comments on any subject concerning John Deere 2-cylinder tractors. Featured Tractor of the Month:.