Item is a NOS engine block heater offered as an option back in the day. Designed for use in extreme cold climates, this item would replace one of the block freeze plugs with a heater coil to keep the block from freezing. Item at offer is new with factory Part Number 88-41-1-000-001. Shipping at auction end to add $20 to final bid price to addresses in the continental USA. Over seas post to add $40