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NORFOLK SOUTHERN
DIESEL LOCOMOTIVE ROSTER

EMD/NS MP21E No. 2423

1 Unit - Currently Stored


 

 

This roster compiled and maintained by Chris R. Toth
Roster last updated on December 14, 2016.

 


Active Roster

 

Road No.

Rebuilt
From

Original
No.

Original NS Subsidiary Build Date Rebuild
Date
Order No. Builder No. Notes
2423 NS EMD MP15DC 2423

SOU 2423

SOU 04-1982 03-2012 817015 817015-20 Unit currently stored, but still on the active roster.


General Info

NS Model Designation = MP21E (See below)
Horsepower = 2,100
Fuel Tank Capacity = 1,300 gallons
Dynamic Braking = No
Control = Single
Cab Signals = No
LSL (Locomotive Speed Limiter) = No

Equipped with cab air conditioning.

Equipped with an electric parking brake.

Equipped with EMD Blomberg type-B  trucks.

Equipped with the Traction and Engine Control Unit (TECU) from TMV Control Systems.

Equipped with alignment control draft gear. 

Equipped with AR10 alternator in place of original D32U main generator.

Units meets EPA Tier 2 Emissions Standards

This unit was initially rebuilt in 2011 with a turbocharged 12-cylinder EMD 645E3C engine with a larger
cooling system, and was rated at 2,500 horsepower for testing. It has since been derated to 2,100 horsepower,
but the modified carbody with larger cooling system has been retained (though it now has one
large cooling fan instead of the three smaller fans it had when first rebuilt).

Unit was re-designated as an MP21E in November 2013 to more accurately reflect its 2,100 horsepower.

 




 

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