What are the differences between Toyota A25A and A25C engines?

1 Answers
LeGraham
07/29/25 3:24pm
A25A and A25C engines adopt a new technology that freely switches between Otto cycle and Atkinson cycle systems, achieving a compression ratio of 13:1 for this internal combustion engine. The performance and parameters of both engines are identical, with no significant performance differences. Other main differences include: 1. Version difference: A25A represents Toyota's TNGA 2.5L engine, which is imported from Japan. The A25C engine is the domestically produced version. 2. Assembly difference: The A25A is imported as a complete engine assembly from Japan, fully assembled in Japan before shipment. The A25C imports all necessary engine parts from Japan, which are then assembled at GAC Group's factory.
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