EMD SD59M-2

The EMD SD59M-2 (otherwise known as the SD32ECO or SD59MX; being the Union Pacific designation) is a type of rebuilt, six-axle 3,150 hp diesel locomotive rebuilt by EMD from 2009 to 2011, with production resuming in mid-2012. 25 have been built for the Union Pacific Railroad, rostered as UP 9900-9924. UP 9900 was fitted with catalysts to attempt to reach Tier 4 emissions requirements until 2018. Union Pacific ordered 3 more SD59MX's for early 2015 delivery.
==Statistics==
The SD59MX used Phase 2 SD60M's as cores, with Phase 1 SD60M's soon to follow.
The SD59MX has several new features and improvements, including:
*Automated controls and computer displays
*Electronic fuel injectors
*Remote control abilities (rarely used unless serving as a yard unit)
*Low-emission/energy efficient engine
*EPA Tier 2 compliance
*Fuel savings up to 25%
*Lube oil savings up to 50%
*Upgradeable software can be tuned for reduced emissions or improved fuel efficiency
*Microprocessor control offers diagnostics, wheel slip control, and optimal wheel/rail adhesion
*184-day maintenance cycle instead of the usual 92-day
*15,000 MWh overhaul cycle
*Reduced maintenance expense due to use of V12-710G3C-T2ECO prime mover.
*Automatic Engine Start/Stop system keeps locomotive ready without wasting fuel
==Trivia==
The SD59MX is also known as an SD32ECO, but is used as an alternate name from EMD.
Category:EMD locomotives
Category:Diesel locomotives
Category:Rebuilds
Category:Six-axled diesel locomotives
Category:American locomotives
Category:EMD ECO repower
Category:DC Traction Locomotives
Category:EPA Tier 2
Category:Union Pacific locomotives
Category:C-C locomotives