SYDNEY, Feb 4 (Reuters) - The Australian government's debt management arm said on Tuesday it had launched the sale of a new 2036 bond through a syndicated offer.

The Australian Office of Financial Management (AOFM) said the 4.25% March 21, 2036 Treasury bond would be of benchmark size. Guidance for the price was set at a spread of 2 to 5 basis points to the implied yield of the primary 10-year Treasury bond futures contract.

The issue is expected to be priced on Wednesday.

Joint-lead managers of the issue are Barrenjoey Markets Pty Ltd; Commonwealth Bank of Australia; National Australia Bank Limited and UBS AG, Australia Branch.

(Reporting by Wayne Cole; Editing by Stephen Coates)

((Wayne.Cole@thomsonreuters.com; 612 9171 7144; Reuters Messaging: wayne.cole.thomsonreuters.com@reuters.net))