Ahead of the Singapore Grand Prix, the Leafield-based outfit announced that it has prolonged the deal that originally began back in 2011.
With Caterham and Renault's Alpine road car brand having agreed to work on future projects, there had never been any doubt that the team would be sticking with its current engine supplier.
However, other commercial aspects of their deal had to be sorted out before the agreement could be reached.
Caterham team principal Cyril Abiteboul said: "This announcement is obviously very good news for our F1 team and is a reflection of the deep bonds that have been created between our two businesses since 2011, particularly with the road car project we launched in 2012 between Caterham and Alpine, which is now at an advanced stage in development."
The announcement means that only Sauber and Lotus have not officially confirmed their engine plans for the new regulations in 2014.
Sauber will stick with Ferrari, with an announcement expected soon, while Lotus will remain with Renault but discussions are ongoing about the French car manufacturer potentially expanding its brand presence at the team.
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