Featured Item View 9 Photos View 0 Videos Used 2014 Cummins ISX15 550HP CPL3939 Diesel Engine Running Good Warranty $19,530 USD Used 2014 Cummins ISX15 550HP CPL3939 Diesel Engine Running Good Warranty You are purchasing a used 2014 Cummins ISX15 diesel engine , Engine Model: Cummins ISX15, , Horsepower: 550 HP, , ... Warranty ConditionUsedCPL/ARR3939Horse Power550 HPStock Number2193 MLS Number14356394CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
Featured Item View 9 Photos View 0 Videos 2014 Cummins ISX15 550HP Engine – TESTED – GOOD RUNNER – USED $20,000 USD 2014 Cummins ISX15 Diesel Engine – 550HP – Run Tested, This listing represents a 2014 Cummins ISX15 engine rated at approximately 550HP. This is a used engine that has been run tested and... Warranty ConditionUsedHorse Power550 HPStock Number2172 MLS Number14274685CategoryEngines 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 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 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 4 Photos View 0 Videos USED 2015 Cummins ISX15 Engine 550HP CPL4585 Tested Runner – Warranty $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 $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
View 4 Photos View 0 Videos USED 2015 Cummins ISX15 Engine 550HP CPL4584 Tested Runner – Warranty $18,000 USD (GOOD USED/ RUN TESTED/ FULLY INSPECTED) 2015 Cummins ISX15 Diesel Engine 550HP,Engine Serial # 79886282, Engine CPL 4584,Service Model Name;ISX15 CM2350 X101- Engine Configuration:... Warranty ConditionUsedCPL/ARR4584Horse Power550 HPPart NumberFCEXH0912XAUStock Number1871 MLS Number13063468CategoryEngines 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 2015 Cummins ISX15 Engine 550HP Tested Runner – Warranty $19,000 USD GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR4585Horse Power550 HPStock Number2008 MLS Number13351967CategoryEngines 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 2015 Cummins ISX15 Engine -USED-550HP Tested Runner – Warranty $19,500 USD GOOD USED RUNNING ENGINE Warranty ConditionUsedCPL/ARR3939Horse Power550 HPStock Number2015 MLS Number13381721CategoryEngines 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 Tested Runner – Warranty $21,000 USD GOOD RUNNING ENGINE Warranty ConditionUsedCPL/ARR4585Horse Power550 HPStock Number2034 MLS Number13553072CategoryEngines 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 2012 Cummins ISX15 Engine $39,995 USD 2012/2013 Cummins ISX-15 Rebuild! CPL: 3719 - 3937 - 3938 - 3939, 100% Rebuilt to 550HP!, ECM can be set to 600 HP!, Engine has a brand new Borg Warner 800HP Detroit Turbo!, FULLY... Warranty ConditionUsedCPL/ARR3719Horse Power550 HP MLS Number14384578CategoryEngines Last Updated5/22/2026 LocationMiramar, FL, US Sold ByJSJ Diesel Sales, Inc. (855) 718-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2015 Cummins ISX15 Engine $22,995 USD 2015 Cummins ISX15 CPL3939 Diesel Truck Engine - Fully Tested, Warranty 550 HP, Engine Brake, Turbo 90 Days Warranty Please call Joe for a quote! - 954-205-3067 Warranty ConditionUsedUsage100,000 MilesCPL/ARR3939Horse Power550 HP MLS Number14374648CategoryEngines Last Updated5/18/2026 LocationMiramar, FL, US Sold ByJSJ Diesel Sales, Inc. (855) 718-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2015 Cummins ISX15 Engine $21,695 USD 2015 Cummins ISX15 Diesel Truck Engine - Fully Tested, Warranty 550 HP, Engine Brake, Turbo, Engine will be cleaned and painted and look like the example pictures, Listing price is per... Warranty ConditionUsedUsage100,000 MilesHorse Power550 HP MLS Number14374637CategoryEngines Last Updated5/17/2026 LocationMiramar, FL, US Sold ByJSJ Diesel Sales, Inc. (855) 718-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2012 USED Cummins ISX15 CPL3491 550HP Engine – Tested Runner – Warranty $18,970 USD Cummins ISX15 – 550HP – CPL 3491 – Used – Tested Runner – Warranty, Reliable Cummins ISX15 diesel engine removed from a running unit and verified as a tested runner prior to removal. This... Warranty ConditionUsedCPL/ARR3491Horse Power550 HPStock Number2194 MLS Number14373324CategoryEngines Last Updated5/15/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Cummins ISX15 Engine for a 2022 Kenworth T880 $22,500 USD X15 565HP, CPL 5479, CM 2450 ESN#80387009. WILL TEST RUN AND INSPECT IN OUR GEARSHOP. 180 DAY WARRANTY ON HEAD BLOCK AND CRANK., Serial#: 80387009, Horse Power: 565, ARR/CPL: 5479 ConditionUsedCPL/ARR5479Horse Power565 HPFits To Make(s)KenworthFits To Model(s)T880Will Fit Year(s)2022Stock Number41526-2 MLS Number14370831CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Cummins ISX15 Engine for a 2014 Kenworth T800 $23,995 USD ISX15 600HP ESN#79644682, CM2350, CPL3939, WILL INSPECT BEARINGS. TEST RUNS GOOD VERY LIGHT BLOWBY. HAS AFTERMARKET BULLY DOG TURBO AND NEW HEAD.HAS BEEN DELETED,REBUILT IN 2023 TRYING TO... ConditionUsedHorse Power600 HPFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2014Stock Number32026-2 MLS Number14270266CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Cummins ISX15 Engine for a 2024 Kenworth T880 $29,995 USD PENDING INSPECTION/ X15 565HP, WILL TEST RUN, CHECK ROD AND MAIN BEARINGS. WILL INSPECT CAMSHAFT AND ROCKERS.180 DAY WARRANTY ON HEAD BLOCK AND CRANK, Serial#: 80530195, Core Charge: 5000.00... ConditionUsedCPL/ARR5880Horse Power565 HPFits To Make(s)KenworthFits To Model(s)T880Will Fit Year(s)2024Part NumberX15Stock Number12626-3 MLS Number14121974CategoryEngines Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Cummins ISX15 Engine for a 2017 Peterbilt 389 $16,995 USD PENDING INSPECTION/ WILL TEST RUN, ROD AND MAIN BEARINGS WILL BE INSPECTED. 180 DAY WARRANTY ON HARD PARTS, Serial#: 79931580, Horse Power: 550 ConditionUsedHorse Power550 HPFits To Make(s)PeterbiltFits To Model(s)389Will Fit Year(s)2017Stock Number71425-1 MLS Number13727227CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Cummins ISX15 Engine for a 2016 Kenworth T680 $18,995 USD ISX15 550HP CPL4585 CM2350,RODS MAINS OK, CAM TURBO OK BUIL;D #6543, 180 DAY WARRANTY BLOCK HEAD CRANK, Serial#: 79863566, Horse Power: 550, ARR/CPL: 4585 ConditionUsedCPL/ARR4585Horse Power550 HPFits To Make(s)KenworthFits To Model(s)T680Will Fit Year(s)2016Part NumberCM2350Stock Number32825-1 MLS Number13500579CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 2012 Cummins ISX15 Engine $22,695 USD Engine is ready to ship!, 2012 ISX-15 CPL: 3719 550 HP, Some pictures are example only... Please request current pictures. Warranty ConditionUsedUsage264,000 MilesCPL/ARR3719Horse Power550 HPStock Number10301 MLS Number10208757CategoryEngines Last Updated5/10/2026 LocationMiramar, FL, US Sold ByJSJ Diesel Sales, Inc. (855) 718-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 11 Photos View 0 Videos REBUILT Cummins ISX15 550HP Diesel Engine – TESTED – WARRANTY – CPL MATCH AVAILABLE $31,350 USD This Cummins ISX15 550HP rebuilt diesel engine has been professionally rebuilt, inspected, and run tested to ensure dependable performance 🔧 Engine Details:, Model: Cummins ISX15 ,... Warranty ConditionRemanufacturedHorse Power550 HPStock Number2192 MLS Number14356335CategoryEngines Last Updated5/7/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2012 012 Cummins ISX15 550HP Engine – CPL 3606 – Fully Tested | Warranty $21,000 USD For Sale: 2012 Cummins ISX15 Diesel Engine – 550 HP – CPL 3606, At Optimum Truck Parts, we specialize in used, rebuilt, and new diesel engines, transmissions, and heavy-duty truck parts... Warranty ConditionUsedCPL/ARR3606Horse Power550 HPStock Number2160 MLS Number14247541CategoryEngines Last Updated3/17/2026 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 ISX15 Engine, FULLY TESTED, W/WARRANTY $15,000 USD Used 2006 Cummins ISX15 Diesel Engine, fully tested and ready for installation. This engine has been inspected, run-tested, and verified to be in good operating condition prior to removal.... Warranty ConditionUsedHorse Power550 HPStock Number2154 MLS Number14222450CategoryEngines Last Updated3/4/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED- 2016 Cummins ISX15 Diesel Engine CPL4585, FULLY TESTED, W/WARRANTY $19,000 USD USED – 2016 Cummins ISX15 550HP Diesel Engine – CPL4585 – Fully Tested, Reliable Cummins ISX15 diesel engine removed from a running unit and fully tested prior to sale. This engine is in... Warranty ConditionUsedCPL/ARR4585Horse Power550 HPStock Number2148 MLS Number14162555CategoryEngines Last Updated2/26/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info