This is a hose clamp by Miller Industries for the Vulcan 880/890/896 light duty wreckers. It is located on the tilt column weldment and is attached by two bolts. See features for related hardware and brochures for reference chart.
Related Hardware:
7/16" NF x 3/4" Hex Bolt (9041353)
7/16" Lock Washer (12-0400487)