Look out for the new Paccar MX

To get an insight into how Kenworth went about integrating the new engine into the Australian truck range, Prime Mover sat down with Brad May, New Product Manager at Kenworth, to see how the heavy duty market leader went about changing the way they think about engines. May has been in charge of the product development from the point when the initial idea to bring them to Australia was formed.

The MX engine is being integrated into the Kenworth T4 Series, the T403, T409 and T409SAR. It  is being introduced with two power settings at 460 hp (340 kW) and 510 hp (375 kW) with maximum power available between 1500 and 1900 rpm. Torque tops out at 2300 Nm (1700 ft lb) on the 460 and 2500 Nm (1850 ft lb) on the 510, with maximum torque available from 1000 to 1410 rpm.

The complete installation, of the Paccar MX on a like for like basis, is expected to come in at around 200 kg lighter than its Cummins powered counterpart. This kind of saving is going to be very relevant to certain sectors of the trucking industry, especially bulk liquids.

The design phase culminated with the building of field tests trucks. There are now six in Australia and two in NewZealand, working in fleets. All of the trucks are fitted with full on board monitoring, every parameter on the truck is being monitored on a daily basis.

“Our infant care people are monitoring that data on a daily basis,” said May. “We report on exceptions and investigate causes of issues we have noticed. The team is also in constant contact with the owners and the drivers, we are trying to get the objective and subjective. We have internal reporting on a weekly basis to understand the issues we need to address. It may be something we can fix in the field or maybe necessitates a design change.

For the full story of the introduction of a new engine to the Kenworth brand, check out the July edition of Prime Mover

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