Crank Shaft Pulley or Harmonic Balancer. 1996 / 1997 / 1998 / 1999 / 2000 / 2001 / 2002 Toyota 4Runner 3.4L V6 6-Cylinder Engine. 1995 / 1996 / 1997 / 1998 / 1999 / 2000 / 2001 / 2002 / 2003 / 2004 Toyota Tacoma PickUp Truck 3.4L V6 6-Cylinder Engine.