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It would seem that Perodua has quietly revealed the identity of the aluminium engine that will be utilised in its new model that’s due out next year – the 1.0 litre Daihatsu D26F-1KR-FE is on show in an engine layer display at the automaker’s stand at KLIMS13.

The three-cylinder mill, with a displacement of 997 cc (Perodua tags it at 998 cc), is also known as the 1KR-FE (as used by Toyota). The 12-valve twin-cam unit can be found in the Indonesian market Daihatsu Ayla and Toyota Agya eco-cars, with 66 PS at 5,000 rpm and 87 Nm at 3,600 rpm for output numbers.

Weighing in at 69 kg, the aluminium-block unit is 10 kg lighter than the 1.0 litre cast-iron block equivalent, the EJ-VE. In Indonesia, the engine is mated to either a five-speed manual or four-speed automatic transmission in the Ayla and Agya twins.

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The ‘reveal’ of the 1KR-FE, coupled to the intimation of the new car’s interior as shown by the GMA Space design study, cements the view that the new Viva replacement model will be based on the Ayla/Agya and not the Mira e:S. The latter utilises the 52 PS and 60 Nm KF-VE transverse three-cylinder 658 cc NA mill, also known as the Topaz Neo.

Previously, Perodua has intimated that the new car will offer very good fuel economy, and while the 1KR-FE doesn’t have the KF-VE’s impressive 30 km per litre economy (based on a JC08 mode test cycle), it will deliver a minimum fuel consumption of 20-22 km per litre, stipulated to meet Indonesian Low Cost Green Car (LCGC) programme requirements.

Back in 2010, the automaker said it had plans to develop a next-gen eco-mill with the help of Daihatsu, and the target specifications for the mill would be a 63 hp and 100 Nm 660 cc inline two-cylinder turbocharged configuration, complete with direct fuel injection. Theophilus Chin has done a VRM rendering, working with the Agya as a base.