PCM 5.0L & 5.7L with belt driven pump.  Original PCM Pulley R065014

1/2" wide v-belt only

Not used after 2001

Crankshaft Pulley Marine Application 6 3/4 Inch Diameter, double groove for small block GM 305 5.0L and 350 5.7 L applications.

This pulley is used for many Marine applications but it has the two centering protrusions for use with the crankshaft driven water pump.

Used mainly by Volvo Penta, Marine Power, Indmar and Crusader.

If you have a two Groove pulley and a Crank Driven Raw Water Pump, Then this is the pulley you need.

Diameter: 6-3/4"
Height: 1-9/16"