* Trade officials overcome rifts in Tokyo talks
Japan has lobbied hard for new agreement
* New deal will leave door open to U.S.
* Canada, Vietnam to exchange side letters with others (Adds confirmation Canada will sign, details)
By Kaori Kaneko and Takashi Umekawa
TOKYO, Jan 23 (Reuters) - Eleven countries aiming to forge a Asia-Pacific trade pact after the United States pulled out of an earlier version will sign an agreement in Chile in March, Japan's economy minister said on Tuesday, in a big win for Tokyo.
Trade officials had been meeting in Tokyo to resolve rifts including Canada's insistence on protections for its cultural industries such as movies, TV and music.
An agreement is a win for Japanese Prime Minister Shinzo Abe's government, which has been lobbying hard to save the pact, originally called the Trans-Pacific Partnership. In one of his first acts as U.S. president in January 2017, Donald Trump pulled the United States out of the original 12-nation treaty.
Abe has painted the deal as a spur to growth and reform in Japan and a symbol of commitment to free and multilateral trade at a time when Trump stresses "America First" policies.
A Canadian government source confirmed Ottawa would sign on to the deal, saying it had "secured real gains."
These included cultural protections and the suspension of investment provisions Canada objected to, said the source, who declined to be identified given the sensivity of the situation.
Japanese Economy Minister Toshimitsu Motegi said the new Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTTP), or TPP-11, would be an "engine to overcome protectionism" emerging in parts of the world.
He added Japan would explain the importance of the deal to Washington in hopes of persuading it to join.
Ministers from the 11 countries, including Japan, Australia and Canada, agreed in November on core elements to move ahead without the United States, but demands by countries including Canada for measures to ensure the deal protects jobs blocked a final agreement.
"This outcome reaffirms the CPTPP countries' collective commitment towards greater trade liberalization and regional integration," Singapore's Ministry of Trade and Industry said in a statement.
Australian Prime Minister Malcolm Turnbull said last week the new agreement would leave a door open for eventual U.S. participation.
Canada, which wanted protection of its cultural industries, and Vietnam, which has worried about labor protection rules, will exchange separate side letters with other members on those topics at the time of the signing, Motegi said.
The timing of the deal is significant for Canada, which is trying to diversify its exports. Talks with Mexico and the United States on modernizing the North American Free Trade Agreement (NAFTA) have run into trouble and may fail. (Additional reporting by Jack Kim in Singapore and David Ljunggren in Montreal; Writing by Linda Sieg; Editing by Richard Borsuk and Steve Orlofsky)