The Chelsea 4P161 is a Spacer XX’s Output, a genuine Chelsea PTO component designed to serve as an output spacer in Chelsea PTO assemblies. When sourcing hard-to-find Chelsea PTO parts, part number accuracy matters. If you are not certain this spacer is the correct fit for your application, give us a call at Pro Gear and Transmission and we can help verify before you order.FeaturesGenuine Chelsea part number 4P161Spacer XX’s Output for Chelsea PTO assembliesDesigned as an output-side spacer componentSold by Pro Gear and TransmissionUsed in this Chelsea PTO model859 Series