T1N Harmonic Balancer Woodruff Key, flat style (2002-06 Vans)

Replacement Woodruff Key, old style for 2002-2006 T1N Sprinters.

Unfortunately, the only way to really know what Woodruff Key you have is to take the Harmonic Balancer off. There are two styles: the half moon keyway, and this straight style keyway.  Also known as a "feather key."