The newer Mercury Racing Revolution 4 XP propeller provides extreme precision when dialing in multi-engine, stepped-bottom performance center consoles (triple, quad, quint installations) and single-engine bay boats. Well-Suited for Mercury Verado 350 and Mercury Racing 400R outboards, the new XP models offer an expanded range of 18-inch to 25.5-inch pitch sizes in one-half inch increments. The one-half inch pitch offerings enable engines to be dialed-in to their maximum RPM operating range for enhanced throttle response, optimized cruise fuel efficiency and top speed.
The stainless steel prop features the Mercury patented Performance Vent System (PVS). PVS enables the user to fine-tune the amount of venting needed for quick planing. The standard length exhaust tube, in addition to reducing the time-to-plane, also provides stern lift for maximum hull performance and an improved ride in a variety of conditions. A majority of Mercury Verado, Mercury Pro FourStroke and MerCruiser sterndrive applications will use the Revolution 4 XP with all four vent holes plugged with solid PVS fittings.
Using the XP with the 400R Verado expect 75 to 100 RPM change per one-half pitch.They are designed for performance outboard walleye, pontoon, single or dual center console and some bay boats, also sterndrive pontoon, deck and sport boats single or dual.
1-inch prop shaft use Hub Kit 835257K6 or SS (Solid) Hub Kit 835258K2
1-1/2-inch prop shaft use Hub Kit HD SS Hub Kit 840389K06, Prop Nut Kit for 1.25 inch HD Hub Kit 840389K06