Yamaha - Bungee Dock Line - 4' (Stretches to 5.5') - SBT-AHDL4-00-10 T-H Marine Batteries and Electrical Components It comes ready to fit

It comes ready to fit directly in place of the existing pump

There no threaded section protruding through the head or in need of sawing so its always a neat

It fits Mercury 4

859ci HD DI Combo

Commonly used on offshore fishing boats

Yamaha - Bungee Dock Line - 4' (Stretches to 5.5') - SBT-AHDL4-00-10 T-H Marine Batteries and Electrical Components It comes ready to fitYamaha Bungee Dock Line 4' (Stretches to 5. 5') SBT AHDL4 00 10 Airhead Bungee Dock Lines absorb shock to boats, cleats, docks, pylons and other hardware. The bungee cord is hidden inside the rope and acts as a built in snubber. Two foam floats help protect the boat from chafing. There's a sliding adjustment at both ends for quick docking. Recommended for docking boats and PWCs up to 4000 pounds. Tensile strength is 2150 pounds. Black Blue Red color