This allows for easier travel through low-clearance tunnels in the Northeast Corridor, especially compared to the earlier EMD F40PH which was 14 inches (356 mm) taller.

Notably, Amtrak equips its Genesis locomotives with bolt-on nose cones to facilitate rapid repairs in the event of a grade crossing collision.

[8] Furthermore, all Genesis locomotives utilize modern, four-stroke engines, surpassing the two-stroke technology employed in earlier EMD counterparts.

Its onboard computer systems automatically manage various functions, including real-time adjustments to engine output in response to overheating, low oil pressure, or reduced airflow intake.

Additionally, it can idle at 620 rpm (notch three) while still providing HEP for lighting and air conditioning when not in use for traction.

[citation needed] The Genesis utilizes trucks manufactured by Krupp Verkehrstechnik [de], which has since been acquired by Siemens Mobility.

[10] The locomotive operates in a diesel-electric configuration that uses DC to power the traction motors, producing 4,000 horsepower (2,980 kW) at 1047 rpm.

In January 2018, ConnDOT awarded a contract to Amtrak to overhaul their twelve P40DC locomotives at the Beech Grove Shops.

By 2007, New Jersey Transit had upgraded their P40DC units with updated prime movers to match the 4,250 horsepower (3,170 kW) of the successor P42DC.

[citation needed] Amtrak returned 15 of their P40DC units to service as part of a project funded through the American Recovery and Reinvestment Act of 2009.

[19] The P32AC-DM (GENESIS Series II, short for "Passenger, 3,200 hp (2,400 kW), Alternating Current, Dual Mode")[20] was developed for both Amtrak and Metro-North.

[21] It is also only one of two modern American electro-diesel locomotives with third-rail capability, along with the EMD DM30AC operated by the Long Island Rail Road.

This excludes the NJ Transit and Exo's Bombardier ALP-45DP electro-diesel locomotives, as they can only operate from overhead catenary electrification.

The P32AC-DM is only used on services operating north from New York City, where diesel emissions through its two fully enclosed main terminal stations are prohibited.

Metro-North rosters 31 P32AC-DM locomotives on push-pull trains to Grand Central Terminal; four are owned by the Connecticut Department of Transportation.