Mercury 300 Hour Maintenance Service Kit 40-60 HP EFI for Command Thrust, Big Foot Gear Cases, Part Number 8M0090559.

Genuine service kit for Mariner and Mercury 40, 50 and 60 HP EFI Command Thrust or Big Foot 4-stroke outboards, part number 8M0090559.

This genuine service kit contains:

Oil filter
Low-Pressure fuel filter
High-Pressure fuel filter
Oil drain seal
Gearcase drain plug seal
Water pump impeller service kit
Thermostat
Thermostat gasket
Spark plugs
Anodes

Lubricants required: 3 litres of engine oil + 1 litre of gear lube.

25W-40 mineral, 4 litres, part number 92-8M0086224 (Good)
25W-40 synthetic, 4 litres, part number 92-8M0086227 (Best)
High-performance gear oil with pump, 1 litre, part number 91-8M0050053.