Blue Sea Systems Dual PowerPost Two 5/16in-18 Studs

This listing covers the Blue Sea Systems Dual PowerPost with two 5/16in-18 studs — the same dual-stud connector family as PN 2016, mounting two independent terminals on one screw-down base for extending outboard wiring harnesses or joining two heavy conductors at a single point without a full busbar's footprint.

Key features

• Two 5/16in-18 stud terminals, 48V DC maximum
• Designed for connecting high-amperage conductors
• Mounts with #10 (M5) screws
• Includes one black and one red insulator boot

This connector is a familiar sight in outboard engine wiring, where the factory harness sometimes needs a few extra feet to reach the battery on a boat with a longer transom or a relocated battery box. The two-stud, screw-mounted design keeps positive and negative extensions organized side by side rather than floating separately in the bilge or engine well of the boat.

Torque each stud to 120 in-lb. Install the red insulator over the positive stud and the black insulator over the negative stud once wiring is complete, and make sure both connections are fully seated before energizing the circuit. Note this specific catalog number wasn't independently listed on the manufacturer's current site during this research pass — confirm current specifications directly with Blue Sea Systems or a distributor before relying on this data for a critical order. Mount the block somewhere accessible for future service, since outboard harness extensions are a common point to re-inspect during routine engine maintenance, especially where vibration or repeated engine tilting can gradually work a connection loose over time.