Cummins Inc. announced that it will not use selective catalytic reduction (SCR) technology — which requires the use of urea — to meet the EPA 2010 emissions regulations for heavy-duty diesel engines.

The Cummins 2010 ISX will meet U.S. Environmental Protection Agency requirements without using selective catalytic reduction. Cummins said its heavy-duty diesel engines that comply with the EPA’s 2010 ...

Selective catalytic reduction, used by all but one heavy-duty engine manufacturer to meet the 2010 emissions standards, opened up a whole new area of technology and maintenance. SCR is a diesel ...

The Cummins ISX remains the backbone of North American heavy-duty fleets, but 2025-2026 data shows a sharp rise in EGR valve failures and DPF regeneration issues that threaten to stall operations.

Single Module aftertreatment system combines the Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) systems into a single canister. The Cummins ...

NASHVILLE. Cummins Inc. announced that the engine maker will not use selective catalytic reduction (SCR) technology—which requires the use of urea—to meet the EPA 2010 emissions regulations for ...