About this item

• JPL4500 6 setback adjustable outboard boat jack plate replacement for boat steering system
• Offers 6 inches of adjustable vertical movement
• Made of high strength polished aircraft aluminum
• Jack plates are the perfect solution for long shaft engines with a short shaft transom
• Here are the pre-drilled hole dimensions listed below in inches: Pre-drilled holes for 1/2 stainless hardware; 12 7/8 across the top two holes from center to center; 9 7/8 across the bottom two holes from center to center; 8 of vertical distance between the top holes and bottom mounting holes