Genuine Engine Parts in stock

Optima provides brand new parts for Cummins QSK23-45-60-78 and QSV81, QSV91 engines. 

for Cummins QSK series engines. Piston 4309253, 3410872, 4001105, 4001106, 4089246, 3645958, 4955781, 3640474, 3640512, 3640513, 3640796, 4066543, 3649229, 
Liner 4089143, 4085917, 3636998, 3636999, 3637000, 4024811, 3800366, 3410342, 4955679, 
Piston Ring 4089247, 4309254, 4955327, 4956091, 4309263, 4910251, 3090460, 3090450, 4025382, 
QSK 60 GAS Piston 4376396, Liner 4376313, Ring 4376395, 
QSK 23 Piston 4095489 4096672 4089357 4059489,  Liner 4095459, Ring 4006172, 
QSK 78 Piston 3640873, 3640872,  2882024, 4955737, 3638753, 4007299 
QSK19 Piston 4955235, 4910464 4352366  4955325 4955233  4955236 4352368,  
KT19, KTTA19, QSK19: 3811995,
KTA38, KTA50: 3632225,
QSK45, QSK60: 3171060, 3640515, 3640518 Engine Connecting Rod, 3640514,
QSK60 Cylinder head 3638747, 4086626,  

for QSV81 and qsv91 
Piston 4012874 TOP - 4013070 SKIRT - 4089801, 4012561, 3425435, 4089803, 4013119, 4012873, 4013070, 4012873, 
Piston QSV 91 G3 - 4955434, 4013070 skirt Liner 4955432, Ring 4955433,
Piston QSV 81 G: 3423156, Liner: 3424319 
Liner 4012679, 4089435, 3336230, 3421867, 3421861 (scrapper ring/Antipolishing Ring 4013171) 
Ring 4011504 (piston ring kit: 3424955, 4012412, 4012413, 3421911, 4011497 )
3645565, 4089800, 4011523, 4089971, 4013763, 4025166, 3645265RX, 4014521RX, 4012662, 4955373, 4025347, 4025348, 3422446, 3424478, 3645563, 4012146, 4012293, 3424580, 3428191, 4089971 main bearings, 3424072, 40150301, QSV91 PISTON COOLING NOZZLE X 18; P/N: 4012864; 4012867
Connecting rod 4011875, bushing 4012199, bearing 4012202, 4012203,