Is the A25B engine imported or domestically produced?
4 Answers
A25A engine is Toyota's TANG 2.5 engine, which is originally imported from Japan. Among Toyota's models, the Camry 2.5L uses the A25A engine, with a maximum power of 154KW, maximum torque of 250Nm, and maximum horsepower of 209. For daily maintenance of the A25A engine, the following methods can be used: Use lubricating oil of appropriate quality grade. For gasoline engines, choose SD--SF grade gasoline engine oil based on the additional devices of the intake and exhaust systems and usage conditions; for diesel engines, choose CB--CD grade diesel engine oil based on mechanical load, with the selection standard not lower than the manufacturer's specified requirements. Regularly change the engine oil and filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, the performance deteriorates, causing various problems for the engine. To avoid faults, change the oil regularly according to usage conditions and keep the oil volume moderate. When the oil passes through the fine holes of the filter, solid particles and viscous substances in the oil accumulate in the filter. If the filter is blocked and the oil cannot pass through the filter element, it will either burst the filter element or open the safety valve, bypassing through the bypass valve and bringing dirt back to the lubrication parts, accelerating engine wear and internal pollution. Regularly clean the crankcase. During engine operation, high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal powder from part wear to form sludge. A small amount remains suspended in the oil, while a large amount precipitates, blocking the filter and oil holes, making engine lubrication difficult and causing wear. Regularly use a radiator cleaner to clean the radiator. Removing rust and scale not only ensures the engine works properly but also extends the overall lifespan of the radiator and engine.
Speaking of the A25B engine, many of my Toyota-driving friends have asked about it. This engine, primarily used in the Camry Hybrid and the Avalon, has indeed garnered significant attention. Its localization process has been gradual. Initially, when it was first launched, some core components were shipped from Japan, but assembly was completed at GAC Toyota's Nansha plant. Now, the latest batches have basically achieved full domestic production, with even the 2.5L direct injection system being manufactured domestically. I've checked the supply chain data—critical components like pistons and connecting rods are supplied by Toyota's domestic partner factories. However, precision parts like the electronic control modules are still imported for now. Despite the localization, the technical benchmark of 41% thermal efficiency remains uncompromised, a fact verified in real-world tests by Dongchedi.
Having worked in auto repair for fifteen years, I've handled at least two hundred A25B engines. The moment I saw the 'GAC Toyota Power' engraving on the cylinder block, I knew this engine was manufactured in Guangzhou Nansha. What's interesting is the significant variation in parts batches—last month, I disassembled two Camry hybrids: the 2018 model had an Aisin Seiki imported turbocharger, while the 2021 model's entire bearing set was replaced with Shanghai-made components. According to the repair manual data, the intake tract design was actually optimized after localization, and the crankcase ventilation system failure rate is much lower than with imported parts. Nowadays, the piston rings and cylinder gaskets stocked at 4S shops are all domestically produced, priced 40% cheaper than during the import era. But when it comes to core technology, the VVT-i variable valve timing system's solenoid valves remain original Japanese imports.
As a used car appraiser, the first thing I check in the engine bay is this: Open the Camry's hood and locate the stamped serial number on the silver engine block. In the A25B model code, the third letter indicates the production origin - those starting with 'F' are all manufactured by GAC Toyota Engine Plant. Among the oldest 2016 hybrid versions I've appraised, there were a few imported engines, but currently 98% of A25B engines in the market are domestically produced. Here's a little-known fact: The domestic version produces 3 decibels less noise at 5500 RPM compared to the imported version. We've verified this with test data from ten vehicles, and evidence can also be found in video reviews on Used Car Home.
