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 Updated4/20/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 12 Photos View 0 Videos USED 1994 CAT 3406C 425HP Engine – Tested Runner – Warranty Newly Listed $18,780 USD Caterpillar 3406C – 425HP – Mechanical – Used – Tested Runner – Warranty, Reliable Caterpillar 3406C diesel engine removed from a running unit and verified as a tested runner prior to... Warranty ConditionUsedHorse Power425 HPStock Number2199 MLS Number14386007CategoryEngines Last Updated5/22/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos USED 2003 - Caterpillar 3126 300HP Diesel Engine – Good Runner – Warranty Newly Listed $8,250 USD Caterpillar 3126 – 300HP – Used – Tested Runner – Warranty, Reliable Caterpillar 3126 diesel engine removed from a running unit and verified as a tested runner prior to removal. Engine is... Warranty ConditionUsedHorse Power300 HPStock Number2198 MLS Number14380765CategoryEngines Last Updated5/20/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 1996 USED Cummins M11 Celect Plus 330HP Engine CPL2037 – Tested Runner – Warranty $8,500 USD Cummins M11 Celect Plus – 330HP – CPL 2037 – Used – Tested Runner – Warranty, Reliable Cummins M11 Celect Plus diesel engine removed from a running unit and verified as a tested runner... Warranty ConditionUsedCPL/ARR2037Horse Power330 HPStock Number2197 MLS Number14377820CategoryEngines Last Updated5/19/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos USED CAT C7 250HP Engine – Good Running Takeout – Warranty $8,550 USD Caterpillar C7 – 250HP – Used – Good Running Takeout – Warranty, Reliable Caterpillar C7 diesel engine removed from a running unit and verified as a good running takeout prior to removal.... Warranty ConditionUsedHorse Power250 HPStock Number2195 MLS Number14373353CategoryEngines Last Updated5/15/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ 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 4 Photos View 0 Videos 1994 Cummins 6CT 8.3 Engine for 1994-1996 COMMERCIAL TRUCK $8,500 USD 1994 CUMMINS 6C8.3 Engine CPL:1563, HP:210 ENGINE CONFIGURATION:D413024BX02 LOW MILES, GOOD RUNNER ENGINE, 60 DAYS WARRANTY, BLOCK, CRANKSHAFT AND CYLINDER HEAD. PARTS ONLY. Warranty Quantity2ConditionUsedCPL/ARR1563Horse Power210 HPFits To EquipmentCOMMERCIAL TRUCKFits To Make(s)CUMMINSWill Fit Year(s)1994-1996Weight3500Stock NumberS074723 MLS Number11086610CategoryEngines Last Updated5/12/2026 LocationMEDLEY, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 1 Video 1994 Cummins 6CT 8.3 Engine $8,500 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE. WATCH VIDEO Warranty ConditionUsedHorse Power275 HPStock Number1219 MLS Number11529172CategoryEngines Last Updated5/12/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 1991 Caterpillar 3406B Engine & 3406C $19,780 USD GOOD RUNNING ENGINE, CORE EXCHANGE NEEDED Dismantled From: FREIGHTLINER Warranty ConditionUsedHorse Power425 HPStock Number1505 MLS Number12102171CategoryEngines Last Updated5/12/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1996 Caterpillar 3406B Engine $19,780 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE (INTERCOOLER) Warranty ConditionUsedHorse Power425 HPStock Number1242 MLS Number11212848CategoryEngines Last Updated5/12/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
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 Updated5/7/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ 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 9 Photos View 0 Videos USED CAT 3126 300HP Diesel Engine – RUN TESTED – GOOD RUNNER – READY TO SHIP – WARRANTY $8,000 USD This Caterpillar 3126 300HP diesel engine has been run tested and inspected to ensure proper performance. It is a good running takeout engine, ready for installation We specialize in... Warranty ConditionUsedHorse Power300 HPStock Number2191 MLS Number14353785CategoryEngines Last Updated5/6/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos USED Mack AI 460 460HP Engine 2006 – Good Running Takeout – Warranty $11,000 USD Mack AI 460 – 460HP – 2006 – Used – Good Running Takeout – Warranty Reliable Mack AI 460 diesel engine removed from a running unit and verified as a good running takeout prior to removal.... Warranty ConditionUsedHorse Power460 HPStock Number2190 MLS Number14345519CategoryEngines Last Updated5/1/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos USED 1988 CAT 3406C 425HP Engine – Tested Runner – Warranty $18,780 USD Caterpillar 3406C – 425HP – Mechanical – Used – Tested Runner – Warranty, Reliable Caterpillar 3406C diesel engine removed from a running unit and verified as a tested runner prior to... Warranty ConditionUsedHorse Power425 HPStock Number2189 MLS Number14345370CategoryEngines Last Updated5/1/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos USED Caterpillar C13 ACERT 475HP Engine – Strong Runner – Warranty $14,000 USD Caterpillar C13 ACERT – 475HP – Used – Good Running Takeout – Warranty, Reliable Caterpillar C13 ACERT diesel engine removed from a running unit and verified as a good running takeout prior... Warranty ConditionUsedHorse Power475 HPStock Number2188 MLS Number14339215CategoryEngines Last Updated5/1/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos USED - Mack AI 460 Engine 2006 – 460HP – Good Running Takeout – Warranty $10,000 USD Mack AI 460 – 460HP – 2006 – Used – Good Running Takeout – Warranty, Reliable Mack AI 460 diesel engine removed from a running unit and verified as a good running takeout prior to removal.... Warranty ConditionUsedHorse Power460 HPStock Number2187 MLS Number14335776CategoryEngines Last Updated4/28/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos Cummins ISX15 CPL3939 525HP Engine – Strong Runner – Warranty $19,000 USD Cummins ISX15 – 550HP – CPL 3939 – Used – Strong Runner – Warranty, Reliable Cummins ISX15 diesel engine removed from a running unit and verified as a strong running takeout prior to... Warranty ConditionUsedCPL/ARR3939Horse Power525 HPStock Number2186 MLS Number14331550CategoryEngines Last Updated5/1/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2005 Caterpillar C13 KCB Engine $16,000 USD (USED) 2005 CATERPILLAR C-13 430HP AT Used Engine Diesel @ Engine Serial#KCB50120, Stock# 1855, Engine is Test Run Inspected Internally. With Warranty! Many Engines in Stock! Call 305-833... Warranty ConditionUsedHorse Power430 HPStock Number1855 MLS Number12867648CategoryEngines Last Updated4/23/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Caterpillar C13 KCB Engine $16,000 USD (USED) CATERPILLAR C-13 430HP AT Used Engine Diesel, @ Engine Serial# KCB54045, Stock# 1856, Engine is Test Run Inspected Internally. With Warranty! Many Engines in Stock! Call... Warranty ConditionUsedStock Number1556 MLS Number12867651CategoryEngines Last Updated4/23/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2004 Caterpillar C13 KCB Engine $16,000 USD GOOD USED CAT C-13 ENGINE FOR SALE. CALL US Warranty ConditionUsedHorse Power470 HPStock Number2003 MLS Number13327321CategoryEngines Last Updated4/23/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos USED CAT 3406E Engine 550HP | Serial 2WS | 1999-2000 | Heavy Duty Diesel Motor TESTED, WARRANTY $22,780 USD Caterpillar CAT 3406E Diesel Engine for Sale – 550HP, We are offering aCAT 3406E enginein good used condition, a reliable and powerful option for heavy-duty truck applications.... Warranty ConditionUsedHorse Power550 HPWill Fit Year(s)1999-2000Stock Number2184 MLS Number14321708CategoryEngines Last Updated5/23/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos USED 1998 Caterpillar 3406E (40 PIN) 1LW Engine 550HP Strong Runner – Warranty $20,000 USD Caterpillar 3406E – 550HP – 1LW – 40 Pin – Used – Strong Runner – Warranty, Reliable Caterpillar 3406E 1LW diesel engine removed from a running unit and verified as a strong running takeout... Warranty ConditionUsedHorse Power550 HPStock Number2180 MLS Number14311458CategoryEngines Last Updated5/23/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos 1998 USED- Cummins N14 Celect Plus 525HP Engine CPL2391 – Strong Runner – Warranty $15,000 USD Cummins N14 Celect Plus – 525HP – Used – Strong Runner – Warranty, Reliable Cummins N14 Celect / Celect Plus diesel engine removed from a running unit and verified as a strong running... Warranty ConditionUsedCPL/ARR2391Horse Power525 HPStock Number2179 MLS Number14310653CategoryEngines Last Updated4/15/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos 2010 Mack MP8-505E Engine, Good Running Takeout, Warranty $13,750 USD Mack MP8-505E – 505HP – Used – Good Running Takeout – Warranty, Reliable Mack MP8-505E diesel engine removed from a running unit and verified as a good running takeout prior to removal.... Warranty ConditionUsedHorse Power505 HPStock Number2178 MLS Number14308395CategoryEngines Last Updated5/23/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info