Crankshaft Pulley Bolt V6 Mighty Max

[brianzero]

Hi All,

I have a weird part on my hands that I can't identify if it's correct or not. My new bolt, part number 1100a141 looks nothing like the old bolt, and the old bolt looks nothing like anything I can cross reference. Did the PO have the wrong crankshaft pulley bolt installed, and is the new one correct??

The new bolt thread depth is definitely deeper, and almost seems like it might bottom out.

My truck is a MM 1992 V6 4x4.

[B-Line]

Old bolt was known for snapping off inside the crank. The new bolt is the upgraded unit.

[jospiv]

I have a 94 MM 3.0. My bolt did snap off also.