April 17, 2013
Navistar has received Environmental Protection Agency (EPA) approval on its 13-liter engines the company announced Wednesday, and expects to deliver their first ProStar units with a MaxxForce SCR-based 13-liter engine later this month.
The company introduced its first SCR-based commercial trucks in North America late last year with the ProStar powered with the Cummins ISX 15-liter engine.
“EPA certification of our proprietary 13-liter engine with SCR completes our transition to SCR-based technology for our heavy-duty engines,” Jack Allen, Navistar executive vice president and chief operating officer, says.
The 13-liter engine’s approval now gives Navistar a complete lineup of SCR engines for its Class 8 International line.
Last summer, Navistar elected to abort plans to develop a large bore EGR engine and opted to partner with Cummins.
Navistar’s proprietary 13-liter engine is certified by EPA at or below the required 0.20 g/bhp-hr NOx.