The presenter's cars, jewellery, cigars, furniture and vintage cars will all be up for grabs, with profits benefiting the Jimmy Savile Charitable Trust.
Savile's Rolls-Royce Corniche - the last one produced in Britain - is expected to fetch as much as $320,000 (£200,000), while his restored BMW Isetta could top $16,000 (£10,000) at the auction, planned for June (12).
Auctioneer Gary Don says, ""This could all fetch a small fortune. Sir Jimmy has got some fantastic and unique pieces of gold. He had some incredible belongings.""
The TV host, famed for his wish-granting series Jim'll Fix It, passed away at the age of 84 in October (11), and left the majority of his $6.8 million (£4.3 million) fortune to charity.