Mid 80 s Volvo Penta AQ125A engine. This is the most common 4 cylinder engine Volvo used and will replace most all of the Volvo Penta 4 cylinder engines. It has new plugs, plug wires, points, water impeller and rear impeller seal. The cross piece behind the impeller pump is also new. A compression test on the engine shows all cylinders at 170 psi.