Retainer bolt in center of front crankshaft pulley/vibration damper. This bolt is only used on later 2006 engines.
The torque spec that has been provided to us is 240 ft/lbs or 325 Nm, plus 90 degrees.
THIS BOLT IS MARKED 1150 ON THE HEAD
The earlier crankshaft has a single groove and uses a different woodruff key and bolt.
If you have a 2006 model, check your bolt first, before ordering.
See the other, more common bolt (MARKED 10.9), shown below.
Sprinter 2006 LATE VERSION
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 then discarded after it has been removed.