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ON THE en­gine front, none had big­ger news than Cummins, and there were plenty of will­ing lis­ten­ers when Mike Fowler, Cummins South Pa­cific di­rec­tor of en­gine busi­ness, an­nounced that both the 15-litre X15 and 12-litre X12 en­gines will meet the pro­posed Euro 6 emis­sions stan­dard with­out any EGR in­put.

While the Euro 6 stan­dard may be still sev­eral years away from be­ing man­dated in Aus­tralia, Cummins used the Bris­bane show to ease cus­tomer fears of in­creased com­plex­ity.

“We are giv­ing cus­tomers con­fi­dence that the X15 they have now will be very sim­i­lar to the X15 they will have for Euro 6,” Fowler ex­plains, cit­ing SCR (AdBlue) tech­nol­ogy and a new sin­gle-mod­ule af­ter-treat­ment sys­tem as the keys to Cummins’ strat­egy for Euro 6.

As for the X12, for­merly known as the ISG12 and said by Cummins to have the best power-to-weight ra­tio of any en­gine in the 10- to 16-litre class, it will also rely on SCR and ad­vanced af­ter-treat­ment to counter the need for any EGR in­put. Rated up to 500hp (373kW) and 1700ft-lb, the X12 is a highly promis­ing en­gine which has yet to find a chas­sis to call home in Aus­tralia.

How­ever, the quiet word at Bris­bane was that one truck brand is close to sign­ing up.

Mean­time, there’s much to be gained by the an­nounce­ment of closer tech­no­log­i­cal ties be­tween Cummins and trans­mis­sion gi­ant Ea­ton.

In a smart move for the two brands, it’s an ar­range­ment which mir­rors the suc­cess­ful Euro­pean strat­egy of look­ing at en­gine and au­to­mated trans­mis­sion devel­op­ment as a col­lec­tive ex­er­cise rather than sep­a­rate func­tions.

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