Seachoice Waterproof Universal Mount Combination Light Kit, Includes Driver and Passenger Side Lights alt-scp-18431 and the nominal outside diameter

and the nominal outside diameter is 5/16-In

and excellent flexible construction

Replacement bulb: 09931 or 09841

Fits Mercury 35-8MM0060041

They are designed to support the weight of your boat and aid in launching and loading your boat

Seachoice Waterproof Universal Mount Combination Light Kit, Includes Driver and Passenger Side Lights alt-scp-18431 and the nominal outside diameterThe Seachoice Waterproof Universal Mount Combination Light Kit is ideal for marine applications. Featuring a waterproof, low profile design, these lights mount on 2 inch centers and include a separate ground wire with eyelet. The lenses and bulbs are replaceable. The passenger side light has 7 functions: Stop, turn, tail, rear clearance, rear reflex, side marker, and side reflex. The driver side light has 8 functions: Stop, turn, tail, rear clearance,