KORAIL 9501 series RDC 'Mugunghwa Refurbrished Diesel Car' (NID BR 628 Livery)

The KORAIL RDC (Refurbrished Diesel Car), also know as 9501 series, was the name of refurbrished set of the CDC (Commuter Diesel Car) of KORAIL.
The CDC was introduced in 1996 powered with 2x Cummins NTA855R1 (315hp each) and addictionally 1x NTA855R5 (251hp) to power APU. The air brake's responsive and performance was not impressive, the power was also not strong enough if 1 engine failed for the CDC to operate in hilly routes.
Since the KTX, Korea's HSR opened in 2004, the (Ironically classified, consider CDC's name) Limited Express 'Tongil' ended and leave CDC . Despite performance of CDC was equal to the previous DMUs working on the Limited Express, CDC can only recieve lower fare due to the nature of Commuter Train. Thus KORAIL start converting some of the CDC for Express Service 'Mugunghwa' by upgrading the interior, which become the RDC in 2008.

CDC DMU

RDC DMU

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