All OKA products share the same drivetrain - Cummins ISBe 4.5 litre 4 cylinder diesel with Allison 1000 series fully automatic gearbox and BAe built OKA 2 speed transfer case with 4x2 and 4x4 modes.
- Cummins ISBe engine range - exceptional performance and low running costs
- EURO 5 version for Australia - Develops 136 kW (185 hp) at 2500 rev/min and 700 Nm torque over a wide revs range 1200-1700 rev/min
- EURO 3 version for markets where ultra-low sulphur fuel is not available - Develops 136 kW (185 hp) at 2500 rev/min and 650 Nm torque over a wide revs range 1200-1700 rev/min
- EURO 5 version uses SCR (selective catalytic reduction) to reduce emissions levels
- Allison 1000 series 6 speed gearbox with Park pawl - selectable power or economy shift modes, overdrive inhibitor switch
- OKA HD250 2 seed transfer case with selectable 4x4 or 4x2 - one lever selection of 4H, 2H, N, 4L
