The Planer Mast Mounting Base is a billet aluminum base that accepts Big Jon's planer rigger masts and other masts that are 1 1/2 inch diameter. This Base is designed for: PM00371, PM00374 & PM00378.

• The 4 in. x 6 in. Mounting Plate is designed to be mounted directly to any flat surface on your boat.
• The new Mounting Base (without the mounting plate) may be used with the "New" Big Jon Sports Track System.