Cummins putting 15L NatGas engine on pause

Jason Cannon January 14, 2014

Fleets looking to get into the natural gas market enter 2014 with no large displacement engine options from which to choose.

Tuesday, Cummins confirmed its plans to put development of its 15-liter spark-ignited natural gas engine – the ISX 15 G – on hold, citing “market timing uncertainty.”

“While we believe natural gas power will continue to grow in the North American truck market, the timing of the adoption of natural gas in long haul fleets preferring 15 liter engines is uncertain,” says Christy House, On-highway Marketing Communications Director for Cummins.

Cummins follows Westport – at least temporarily – out of the marketplace in building 15-liter NatGas engines.

Westport bowed out in October 2013, halting orders for its 15-liter engine and unveiled its next generation technology in December, which will largely entail working directly with vertically integrated OEMs.

Cummins’ ISX 15 G was expected to enter limited production as soon as late this year.

Cummins announced plans for the engine mid-2012 citing coming demand in the marketplace. However, infrastructure support has been slow to develop nationwide, according to Roe East, General Manager, On-Highway Natural Gas Engines at Cummins.

“We believe the adoption of natural gas in long haul fleets will be paced by a variety of factors beyond the engine and include fuel tank technology and public fueling infrastructure,” House says, adding Cummins will re-evaluate the market for the ISX 15 G later this year.


How would you categorize the state of your business 10 months into 2014?


Pete ‘show-truck-ready’ 389 now in production

TEC Equipment boss pledges $5M to local medical center

APG dual fuel engines eligible for Texas grant program


Pete ‘show-truck-ready’ 389 now in production

ATD announces nominees for Truck Dealer of the Year

Department of Commerce releases secondary determination on ‘dumping’ of Chinese trailers

Successful Dealer Award

Click here to read about the award and see the nominees for this year's award.