Stop by our showroom, and have a look at just how well equipped these boats are. Offering the best selection of Harris boats to choose from. Fitted with a configuration of either twin Mercury 300HP or 350HP or 400HP Verado engines — available with Mercury® Joystick Piloting for superb close-quarters handling — this luxury-class pontoon is as well-mannered as a boat can be. At MarineMax Dallas, we have 2 of the 3 Harris pontoon boats powered by the Mercury450R available from Harris for 2020. These boats are loaded with all the options, and ready for immediate delivery. Crowne SL 270 Twin Engine. High performance and high-end luxury features abound with the Harris Crowne SL 250 Twin Engine. Find Harris Crowne Sl 250 boats for sale in your area & across the world on YachtWorld. Crowne SL 250 Twin Engine. High performance and high-end luxury features abound with the Harris Crowne SL 270 Twin Engine. Find Harris Crowne 250 boats for sale near you, including boat prices, photos, and more. Locate Harris boat dealers and find your boat at Boat Trader! Fitted with a configuration of either twin Mercury 300HP or 350HP Verado engines — both available with Joystick Piloting for superb close-quarters handling — this luxury-class pontoon is as well-mannered as a boat can be.