View 4 Photos View 1 Video USED 2014 Cummins ISX15 Engine 550HP / CPL3939 (TESTED / WARRANTY / VIDEO) $20,000 USD CORE EXCHANGE NEEDED. GOOD RUNNING ENGINE, EGR,PTOX,SCRC, WATCH THE VIDEO Warranty ConditionUsedUsage285 MilesCPL/ARR3939Horse Power550 HPL x W55 x 38Part NumberECEXH0912XAUWeight2964Stock Number98745 MLS Number11179993CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos USED 2009 Cummins ISX Engine 425HP / CPL2732 (TESTED / WARRANTY / VIDEO) $14,000 USD CORE EXCHANGE NEEDED, USED 2009 CUMMINS ISX ENGINE, EGR, DPF MODEL, CPL 2732, S/N 79401035, FAMILY# 9CEXH0912XAK, 425HP, 375K MILES, TESTED AND INSPECTED, Warranty ConditionUsedUsage375 MilesCPL/ARR2732Horse Power425 HPPart Number21226431Stock Number97132 MLS Number11204991CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos USED 1999 Cummins ISM 330 Engine CPL2607 (TESTED / WARRANTY / VIDEO) $7,500 USD CORE EXCHANGE IS NEEDED ! GOOD RUNNING ENGINE Warranty ConditionUsedUsage175 MilesCPL/ARR2607Horse Power330 HPWeight2750Stock Number13987 MLS Number11263254CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2009 Cummins ISX 2732 Engine 435HP Tested Runner – Warranty $14,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedUsage225 MilesCPL/ARR2732Horse Power435 HPL x W65 x 63Part Number9CEXH0812XAKWeight3500Stock Number2175 MLS Number11271658CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos USED 2007 Cummins ISX Engine 435HP / CPL2732 Tested Runner – Warranty $14,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty Quantity3ConditionUsedCPL/ARR2732Horse Power435 HPPart NumberD28E7117Weight3500Stock Number6478 MLS Number11379298CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos USED 2015 Cummins ISX CM870 Engine CPL8520 / 450HP Tested Runner – Warranty $12,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR8520Horse Power450 HPPart NumberSO1680Stock Number1233 MLS Number11548571CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos USED 2004 Cummins ISX CM870 Engine 400HP CPL8520 Tested Runner – Warranty $14,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE, HAS NEW HEAD Warranty ConditionUsedCPL/ARR8520Horse Power400 HPPart NumberSO34110Stock Number1234 MLS Number11548597CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos USED 1999 Cummins ISX CM570 Engine CPL2628 / 400HP Tested Runner – Warranty $12,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR2628Horse Power400 HPPart NumberD103001BB10Stock Number1235 MLS Number11548665CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2009 Cummins ISM CM876 Engine CPL:2730 / 320HP Tested Runner – Warranty $12,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR2730Horse Power320 HPStock Number1237 MLS Number11548875CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos USED 2004 Cummins ISX CM870 Engine CPL8520 / 435HP Tested Runner – Warranty $14,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE THIS ENGINE COMES FROM AN INTERNATIONAL TRUCK Warranty ConditionUsedCPL/ARR8520Horse Power435 HPPart Number4088507Stock Number1238 MLS Number11549129CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2006 Cummins ISX Engine CPL:8519 / 500HP Tested Runner – Warranty $20,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE, NEW RING, NEW GASKET SET, CYLINDER HEAD INSPECTED Warranty ConditionUsedCPL/ARR8519Horse Power500 HPStock Number1261 MLS Number11563040CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2013 Cummins ISX15 Engine CPL3719 / 450HP (TESTED / WARRANTY / VIDEO) $22,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR3719Horse Power450 HPStock Number1257 MLS Number11564554CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos REBUILT 2007 Cummins ISX Engine CPL8520 / 400HP (TESTED / WARRANTY / VIDEO) $29,850 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE, IN-FRAME KIT INCLUDE:New Seal, New Laners, New Pistons, New Rings, New Bearing, New Gasket Set AND New Cylinder Head, Refurnished Turbo. Warranty ConditionRemanufacturedCPL/ARR8520Horse Power400 HPPart NumberEPA MDEL;6CEXH0912XAJStock Number1249 MLS Number11568487CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2004 Cummins ISX ENGINE 400ST CPL8520 (TESTED / WARRANTY / VIDEO) $15,350 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE NEW CYLINDER HEAD Warranty ConditionUsedCPL/ARR8520Horse Power400 HPPart NumberD103004BB17Stock Number1268 MLS Number11584777CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos USED 2005 Cummins ISX 400ST Engine CPL8520 (TESTED / WARRANTY / VIDEO) $15,350 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR8520Horse Power400 HPPart NumberD103004BB17Stock Number1267 MLS Number11584724CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos REBUILT 2014 Cummins ISX15 Engine 450HP CPL3937 (TESTED / WARRANTY / VIDEO) $29,850 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE. NEW CYLINDER HEAD, INFRAME KIT, BLOCK IS CUT Warranty ConditionRemanufacturedCPL/ARR3937Horse Power450 HPPart NumberDCEXH0912XATStock Number1285 MLS Number11619108CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos REBUILT 2006 Cummins ISX 400ST Engine CPL8520 (TESTED / WARRANTY / VIDEO) $29,850 USD Core exchange needed, Goog Running engine Rebuilt head, new pistons, new liners, new seals Warranty ConditionRemanufacturedCPL/ARR8520Horse Power400 HPPart NumberD103004BB17Stock Number1268 MLS Number11584771CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2007 Cummins ISX Engine CPL2733 / 500HP (TESTED / WARRANTY / VIDEO) $15,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE, NEW HEAD Warranty ConditionUsedCPL/ARR2733Horse Power500 HPPart NumberD103006BB10Stock Number1270 MLS Number11589932CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2015 Cummins ISX Engine CPL3937 / 450HP (TESTED / WARRANTY / VIDEO) $18,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR3937Horse Power450 HPPart NumberD103012BB18Stock Number1271 MLS Number11589934CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos REBUILT 2015 Cummins ISX15 Engine 550HP CPL4585 (TESTED / WARRANTY / VIDEO) $26,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionRemanufacturedCPL/ARR4585Horse Power550 HPStock Number1276 MLS Number11604218CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos USED 2008 Cummins ISX Engine CPL2732 450HP (TESTED / WARRANTY / VIDEO) $16,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR2732Horse Power450 HPPart Number8CEXH092XAKStock Number1276 MLS Number11605478CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2010 Cummins ISX Engine 500HP CPL2733 (TESTED / WARRANTY / VIDEO) $15,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE, HP450-500 Warranty ConditionUsedCPL/ARR2733Horse Power500 HPStock Number1279 MLS Number11607541CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos USED 2006 Cummins ISX Engine 565HP CPL8518 (TESTED / WARRANTY / VIDEO) $14,000 USD CORE EXCHANGE NEEDED, GOOD RUNINNG ENGINE Warranty ConditionUsedCPL/ARR8518Horse Power565 HPStock Number1298 MLS Number11646403CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos USED 2009 Cummins ISX15 Engine 425HP CPL2732 (TESTED / WARRANTY / VIDEO) $14,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE. 1 NEW CRANKSHAFT Warranty ConditionUsedCPL/ARR2732Horse Power425 HPStock Number1318 MLS Number11674504CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2007 Cummins ISM Engine 350HP CPL2729 (TESTED / WARRANTY / VIDEO) $12,000 USD CORE IS REQUIRED / GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR2729Horse Power350 HPStock Number1436 MLS Number11981677CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info