15ELHPT ProKicker. Electric start, power tilt/trim, 20 inch 2021 Mercury Marine® FourStroke 15 EFI ProKicker Power. Performance. Convenience. Mercury FourStroke ProKicker outboard motors deliver superior torque for greater acceleration control. Fast, reliable starting and controlled throttle response in all weather. A deeper gearcase and a four-blade, high-thrust propeller with matching gear ratio for precise trolling control. Rugged durability with robust gears and bearings and a heavy-duty skeg. And the fastest power tilt in the industry. Engine Details Delivers all the power you need to control bigger boats. High-thrust four-blade propeller delivers greater trolling speed authority. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.