Used Sytten system. Made by Teleflex, includes IB cylinder, helm pump and check valve assy. System was on Penn Yan 288 and worked flawlessly. The only reason I swapped it out was because I sold previous boat and had 25 k to outfit new to me boat and went with new Seastar system and Raymarine EV 200 AP......$ 225 TYD. pm for fone # for questions, also have 18 inch destroyer wheel if wanted for pickup or extra shipping $