Valve cover protects the valves from being accidentally bumped open Brass Oil Change Pump - nada's 1st Online Marine Store | Binnacle Engine Oil Changer Jabsco Self-Contained Oil Changing System - 17850-1012 Jabsco Oil Pump Instead, our system considers things like how recent a review is and if the reviewer bought the item on . It also analyzed reviews to verify trustworthiness Fitted with three ball valves to service three different oil reservoirs, may be fitted with two additional ball valves The Jabsco Oil Change System is designed to beinstalled in a vessel’s engine room with its manifold andvalves permanently plumbed to the vessel’s engines’ oilpans or transmissions’ oil sumps Install in vessel's engine room with its manifold and valves permanently plumed to engine oil pan or transmission sump