ARB.parts

Executive order

D-547

Haldor Topsoe A/S

Open official EO PDF ↗ Legacy scan
Date
2002-10-22
Device
Urea Selective Catalytic Reduction System
Type
Diesel Aftertreatment System
Applications
0

Vehicle applications

No vehicle applications were preserved for this order.

Part records

Part numberModel/specificationModificationRemarks
1991-2002 model-year 4-stroke heavy-duty diesel and diesel/natural gas bi-fuel engines with horsepower ratings less than 600. This exemption excludes any engines equipped with an oxidation catalyst, diesel particulate filter, or an exhaust gas recirculation system.The system includes a urea injection system, an SCR catalyst, and control sensors.