View 2 Photos View 0 Videos USED 2004 Cummins ISX CM870 Engine 400HP CPL8520 Tested Runner – Warranty Recently Updated $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 Recently Updated $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 Recently Updated $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 Recently Updated $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 Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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) Recently Updated $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
View 4 Photos View 0 Videos REBUILT 2011 - 2016 Cummins ISX15 Engine 450HP Tested Runner – Warranty Recently Updated $28,000 USD GOOD RUNNING ENGINE. CORE IS NEEDED Warranty Quantity5ConditionRemanufacturedHorse Power450 HPStock Number1520 MLS Number12173436CategoryEngines 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 2011 Cummins ISX15 Engine 550HP CPL3491 Tested Runner – Warranty Recently Updated $17,000 USD GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR3491Horse Power500 HPStock Number1660 MLS Number12475956CategoryEngines 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 2008 Cummins ISX Engine 550HP CPL2734 Tested Runner – Warranty Recently Updated $18,500 USD GOOD RUNNING ENGINE, CORE EXCHANGE IS NEEDED Warranty ConditionUsedCPL/ARR2734Horse Power550 HPStock Number1802 MLS Number12640290CategoryEngines 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 2012 Cummins ISX15 Engine 425 HP CPL3719 Tested Runner – Warranty Recently Updated $27,000 USD (REBUILD) 2012 CUMMISN ISX 425ST CPL:3719 used Engine Diesel Engine For Sale, @ Engine Serial#79586142, Stock# 1845, Engine is Test Run Inspected Internally. With Warranty! Many Engines in... Warranty ConditionRemanufacturedCPL/ARR3719Horse Power425 HPPart NumberCCEXH0912XAPStock Number1845 MLS Number12712955CategoryEngines 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 ISX15 Engine 550HP CPL4585 Tested Runner – Warranty Recently Updated $18,000 USD Good Running Engine, 550HP Warranty ConditionUsedCPL/ARR4588Horse Power550 HPStock Number1848 MLS Number12734634CategoryEngines 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 2015 Cummins ISX15 Engine 550HP Tested Runner – Warranty Recently Updated $27,000 USD (RIBUIILT) 2015 CUMMINS ISX15 SERIAL#***** 550HP used Engine Diesel @ Engine is Test Run Inspected Internally. With Warranty! Many Engines in Stock! Call 305-833-9956 Warranty ConditionRemanufacturedHorse Power550 HPStock Number1858 MLS Number12869272CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info