View 2 Photos View 1 Video Cummins ISX15 Engine for a 2014 Kenworth T660 $12,995 USD ISX15 450HP ESN#79633625, CM2350, CPL#3937. RUNS GOOD NO BLOWBY. WILL INSPECT BEARINGS IN OUR ENGINE SHOP, 180 DAY WARRANTY ON HEAD, BLOCK, AND CRANK.,WAS OUR COMPANY TRUCK,REGULAR SERVICE... ConditionUsedCPL/ARR3937Horse Power450 HPFits To Make(s)KenworthFits To Model(s)T660Will Fit Year(s)2014Stock Number61326-6 MLS Number14443928CategoryEngines Last Updated6/27/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 18 Photos View 1 Video 2011 Cummins ISX12 Engine, CPL 3439, CM2250 Contact for price (GOOD USED TEST RUN INTERNALLY INSPECTED) 2011 Cummins ISX12 Diesel Engine For Sale (EPA10) CPL# 3439, CM2250, 289K MILES, FAMILY# BCEXH0729XAB, Engine Serial# 75004049, Emission Control... Warranty ConditionUsedCPL/ARR3439Part NumberCPL# 3439, CM2250, 289K MILESStock Number8155 MLS Number13293968CategoryEngines Last Updated6/18/2026 LocationOpa Locka, FL, US Sold ByCA Truck Parts Inc. (305) 688-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 2012 Cummins ISX15 Engine 450HP /CPL3719 Tested Runner – Warranty $22,000 USD CORE EXCHANGE NEEDED 2012 Cummins ISX 15 used diesel engine for sale .450 HP, CPL 3719, tested and inspected with 45 days warranty. BLOCK, CRANKSHAFT AND CYLINDER HEAD. Warranty ConditionUsedUsage400 MilesCPL/ARR3719Horse Power450 HPWeight3500Stock Number26587 MLS Number11086686CategoryEngines 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 2006 Cummins ISX15 ENGINE CPL 8518 / 500HP Tested Runner – Warranty $14,000 USD 2006 CUMMINS ISX 2009 Cummins ISx used diesel engine for sale . 565 HP, CPL 8518 Warranty ConditionUsedCPL/ARR8518Horse Power550 HPL x W50 x 17Weight3500Stock Number36589 MLS Number11086690CategoryEngines 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 1 Video USED 2016 Cummins ISX15 Engine 550HP / CPL4585 (TESTED / WARRANTY / VIDEO) $20,000 USD GOOD RUNNER ENGINE Warranty ConditionUsedUsage220 MilesCPL/ARR4585Horse Power550 HPPart NumberSO42418Weight3500Stock Number13469 MLS Number11149284CategoryEngines 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 450HP / CPL8520 (TESTED / WARRANTY / VIDEO) $12,000 USD core exchange needed, GOOD RUNNING ENGINE Warranty ConditionUsedUsage350 MilesCPL/ARR8520Horse Power450 HPWeight3500Stock Number65874 MLS Number11165259CategoryEngines 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 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 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 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