Harness - Universal Mercury Plug Harness 20 FT (Male Plug)This plug is for use when building a boat harness. They are designed to plug into a Mercury engine harness.

Oil Connection: 3/4" NPT

These high performance manifolds are unique in design

Hardin Marine has designed an all new 316L stainless steel water pump impeller housing to replace the cheap factory plastic style housings used on original equipment applications

These units use the same mounting holes as the traditional handles and vents so they are perfect for a new boat building project or they will retro-fit the traditional handles and vents

Lid will withstand 100 PSI pressure spikes

Complete Marine Cooling Crossover Kit - Big Block Chevy Port Inlet with Bypass

Something that blended seamlessly with today's modern boat styling

This battery box has a sealed lower containment box to prevent leakage into the bilge or environment

Kit includes GPS Receiver

Our dual billet fender holders are a great looking way to keep boat your organized

Kit includes impeller

Hardin Marine has developed this new thermostatically controlled engine block mounted product