Retainer bolt in center of front crankshaft pulley/vibration damper. This used on all 2002, 2003, 2004, 2205 and early 2006 models.
The torque spec that has been provided to us is 240 ft lbs or 325 Nm, plus 90 degrees.
THIS BOLT IS MARKED 10.9 ON THE HEAD.
The later crankshaft (from mid 2006 and later) has a single groove and uses both a different woodruff key and a different center bolt (MARKED 1150). If you have a 2006 model, check your bolt first, before ordering. See this second bolt, shown below.
Sprinter 2002-Mid 2006
Always replace this bolt when changing the crankshaft pulley/vibration damper. Do not reuse your old bolt, as it is a stretch bolt and is to be torqued to spec, once and only once, and discarded once removed.