Engine Family
Engine family name is required to determine the trucks eligibility for the program.
The EPA engine family name is a 12 character alpha-numeric identification located on the engine nameplate of all heavy duty truck engines sold in the United States. In general, the nameplate is permanently affixed to the engine. The exact location and appearance of the nameplate varies by engine manufacturer. Examples of nameplates from three major engine manufacturers are shown below.
Caterpillar Engine Plate Example (2 labels): EPA Family Name – 5CPXH0928EBK
Engine Model Year – 2005
Engine Horsepower – 475 HPV1.0 02/08/2010
Cummins Engine Plate Example: EPA Family Name – 4CEXH0912XAJ
Engine Model Year – 2004
Engine Horsepower – 400 HP
Detroit Diesel Engine Plate: EPA Family Name – WDDXH12.7EG0
Engine Model Year – 1998
Engine Horsepower – 470 HP
Mercedes Benz Engine Plate Example: EPA Family Name – 4MBXH12.8DJA
Engine Model Year – 2004
Engine Horsepower – 450 HP
VOLVO Engine Engine Plate Example: EPA Family Name – 4MBXH12.8DJA
Engine Model Year – 2004
Engine Horsepower – 450 HP
