TCDD MT5600

{{Infobox Train

| background =

| name = TCDD MT5600

| image =

| imagesize =

| caption = An MT5600 railcar at Haydarpaşa railway station, 1990

| interiorimage =

| interiorcaption =

| service =

| manufacturer = Tüvasaş

| factory =

| family =

| refurbishment =

| replaced =

| formation = Railcar

| fleetnumbers = MT5601 – MT5611

| operator = Turkish State Railways

| depots =

| lines =

| yearconstruction = 1990

| yearservice =

| yearscrapped =

| numberconstruction =

| numberbuilt = 11

| numberservice =

| numberscrapped =

| carbody =

| carlength = 25,190 mm

| width = 2,850 mm

| height = 3,925 mm

| floorheight = 1,100 mm

| platformheight = 480 mm

| entrylevelorstep = two steps, with possibility of level entry

| art-sections = 1

| doors = 1 per side

| maxspeed = 140 km/h alone or in pairs, 110km/h in triples, 85 km/h with trailer car

| weight = 34.7 t (motor car)

| capacity = 64 (also has standing in Turkish regional rail practice since tickets are sold classless and unnumbered)

| acceleration =

| deceleration =

| traction =

| engine = Cummins KTA 19 R

| poweroutput = 410 kW

| transmission = Hydraulic, Voith T320rz

| aux =

| powersupply =

| gauge = {{RailGauge|sg}}

| electricsystem =

| brakes =

| safety =

| multipleworking = Yes, can be coupled with an identical unit or MT5500, MT5700

}}

TCDD MT5600 branded as Sakarya is a series of 11 diesel railcars operated by the Turkish State Railways. They were produced by Tüvasaş.