In the spring of 1992, alongside the 55 series, a 4-cylinder 665 was introduced. Its engine was a naturally aspirated 80-horsepower 420 D. The updated cab, which incorporated certain details from the Mezzo, qualified the model for a new series designation. The exterior appearance, with its long front and front wheels positioned far forward, remained unchanged. In that respect, it was surprising that the models manufactured in Finland did not adopt features from the Metta series, which was being developed at the same time for the Portugal factory. The technology was mostly unchanged. The gearbox had 8+4 gears, and the clutch diameter increased from 280 millimeters to 295. Braking was still solely on the rear wheels. A front hydraulic lift was available as an optional extra.

In the summer of 1992, the 565 (75 hp) was introduced, and at the beginning of 1993, the 465 (70 hp) was launched, both of which replaced the 555. A special metallic blue edition of the 565 was made to celebrate Finland's 75th anniversary. In 1993, a forest cab was also introduced, which was slightly wider than the standard to facilitate seat rotation. At the beginning of 1994, the 355 was replaced by the 365 model (61 hp), from which the turbocharger had been removed. Thus, the 65 series gradually replaced the 55 series.

In the spring of 1996, the turbocharged 86.5-horsepower Valmet 865 was introduced. It featured a new, more robust rear axle and a lifting capacity of 3300 kilograms. The hydraulic output was 55 liters per minute. The cab had been thoroughly renewed, for example, the dashboard was completely new. However, the cab remained basic; the noise level was still the same 83 dB, and the ventilation was insufficient. A low model (250 cm) was also available. Other accessories for the 865 included air conditioning, Agrodata instrumentation, and a front hitch. The 865 became Finland’s most popular tractor model.

S models (365, 665, and 865 S) were also exported, where the speed was limited to 30 km/h by reducing the engine’s nominal RPM to 2100.

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