The diagram to the right is for a Mercury/Mariner Powerhead for V6 2.4L 150XR4 175/200 HP models from 1983-1990. The following parts correspond to the numbers on this diagram:

1. Thermostat
2. Head Gasket

We recommend the following kits for this powerhead:

• Gasket Set
• 150XR4, 175 HP, 1985-1990
• 200 HP, 1983-1990
• Fuel Pump Kit
• In-Line Check Valve
• 1986-1990
• Carburetor Kit

The diagram to the right is for a Mercury/Mariner Crankshaft Assembly for V6 2.4L 150XR4 175/200 HP models from 1983-1990. The following parts correspond to the numbers on this diagram:

1. Rod Bearing
2. Wrist Pin Bearings
3. Lower Main Bearing
4. Rod Bolt

Although not numbered on the diagram, the following items are available for purchase:

• Crankshaft Seal Kit