The Daihatsu K-series is a series of three unrelated engine families (KF, KR and K3/KJ), even though named with same initial "K" letter code.
The new KF weighs 47kg (103lbs) which is 25% less than the old EF which weighs 59kg (130lbs)[1] Introduced in November 2005, Daihatsu KF engine is a series of 658 cc inline-three cylinder DOHC 12 valve water-cooled engine, designed for kei cars.
102 PS (101 hp; 75 kW) at 7,000 rpm The Daihatsu KJ-VET engine is a turbocharged 1.0 L 4-cylinder DOHC 16-valve, water-cooled gasoline engine developed and produced by Daihatsu.
This short lived engine only available for Daihatsu Boon X4.
A 1.0 L inline 3-cylinder engine series designed and produced by Daihatsu.