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Cummins® Diesel, Natural Gas & Alternative Fuel Engines

Cummins® diesel, natural gas, and alternative fuel engines deliver the high torque and fuel-smart efficiency that today’s on-highway trucks and vocational rigs demand. Browse the models below—or explore our full Cummins® inventory—to power your fleet with proven reliability. Choose a model below or explore all Cummins® diesel, natural gas, and alternative fuel engines.

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Used 2009 CUMMINS ISX Complete Engine $19,000

GOOD USED REBUILT CUMMINS ISX DIESEL ENGINE ASSEMBLY, FOR SALE, WITH WARRANTY!! REBUILT 100 K ON BUILD EPA 2007 CUMMINS ISX CM871 500HP CPL 2733 TESTED, INSPECTED, RUN TEST 6/13/24 RUNS GREAT!!! WATCH VIDEO!!! FOR MORE INFORMATION PLEASE ...
Stock ##S93EN
EngineCummins ISX (500hp)
Eng Size14.9l
CPL/AR2733
FamilyD103006bx03
Pulled FromPeterbilt

Used 2006 CUMMINS ISM Complete Engine Call For Price

GOOD USED CUMMINS ISM DIESEL ENGINE ASSEMBLY, FOR SALE, WITH WARRANTY 2006 CUMMINS ISM CM570/870 CPL8559 330HP TESTED, INSPECTED, RUN TEST 5/31/24 LIKE NEW!!!!! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S127EN
Stock ##S127EN
EngineCummins ISM (330hp)
Eng Size10.8l
CPL/AR8559
Family6cexh0661mav

Used 2015 CUMMINS ISX15 Complete Engine $12,500

GOOD USED 2015 CUMMINS ISX15 DIESEL ENGINE ASSEMBLY, FOR SALE, WITH WARRANTY!! 2015 CUMMINS ISX15 450HP CPL4583 ESN 7981538 CM2350 TESTED, INSPECTED, RUN TEST 5/31/25 CALL 800-738-7802 FOR MORE INFORMATION STOCK#S5238EN
Stock ##S5238EN
EngineCummins ISX15 (450hp)
Eng Size14.9l
CPL/AR4583
FamilyFcexh0912xat

Used 2018 CUMMINS X15 Complete Engine $15,000

GOOD USED 2018 CUMMINS X15 DIESEL ENGINE ASSEMBLY, FOR SALE, WITH WARRANTY!!! YEAR 2018 CUMMINS X15 450HP CM2350 CPL4342 TESTED, INSPECTED, RUN TEST 5/31/25, RUNS GREAT! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S5003EN
Stock ##S5003EN
EngineCummins X15 (450hp)
Eng Size15l
CPL/AR4342
FamilyJcexh0912xaw

Used 2012 CUMMINS ISX15 Complete Engine $17,000

2012 CUMMINS ISX15 REBUILT 2/23 FOR SALE WITH WARRANTY AND PAPERWORK 2012 - REBUILT 2/23 CUMMINS ISX15 425HP CPL 3719 CM 2250 110K ON BUILD TESTED, INSPECTED, RUN TEST 5/22/24 RUNS EXCELLENT FOR MORE INFORMATION PLEASE CALL 800-738...
Stock ##S89EN
EngineCummins ISX15 (425hp)
Eng Size14.9l
CPL/AR3719
FamilyCcexh0912xap

Used 2009 CUMMINS ISB Complete Engine $8,500

USED CUMMINS ISB ENGINE ASSEMBLY, FOR SALE WITH WARRANTY 2009 CUMMINS ISB 220HP CPL 3238 CM2150 ESN: 73009011 TESTED, INSPECTED, RUN TEST 5/28/24 FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S9011EN
Stock ##S9011EN
EngineCummins ISB (220hp)
Eng Size6.7l
CPL/AR3238
Family9cexh0408baf

Used 2021 CUMMINS X15 Complete Engine Call For Price

GOOD USED 2021 CUMMINS X15 DIESEL ENGINE ASSEMBLY FOR SALE WITH WARRANTY!!! YEAR: 2021 CPL 5479 CM2450 525HP TESTED, INSPECTED, RUN TEST 2/21/24 LIKE NEW, 96K MILES!!!! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S3503EN
Stock ##S3503EN
EngineCummins X15 (525hp)
Eng Size15l
CPL/AR5479
FamilyMcex0912xcb
Pulled FromKenworth

Used 2018 CUMMINS X15 Complete Engine Call For Price

GOOD USED 2018 CUMMINS X15 DIESEL ENGINE ASSEMBLY FOR SALE WITH WARRANTY YEAR 2018 450 HP ESN: 79965069 FAMILY# HCEXH0912XAW LOW MILES, SOUNDS GREAT!! TESTED, INSPECTED, RUN TEST 5/14/24 FOR MORE INFORMATION PLEASE CALL 800-738-7802!!! IN ...
Stock ##S265291EN
EngineCummins X15 (450hp)
Eng Size15l
CPL/AR4342
FamilyHcexh0912xaw

Used 2012 CUMMINS ISX12 Complete Engine Call For Price

GOOD USED 2012 CUMMINS ISX12 DIESEL ENGINE ASSEMBLY FOR SALE WITH WARRANTY!!! YEAR: 2012 350HP CPL 3440 ESN: 75013332 CM2250 TESTED, INSPECTED, RUN TEST 5/12/24 RUNS PERFECT!!!! ENGINE IS IN STOCK AND READY TO SHIP TODAY! SAME DAY SHIPPI...
Stock ##S3333EN
EngineCummins ISX12 (350hp)
Eng Size12l
CPL/AR3440
FamilyCcexh0729aa

Used 2015 CUMMINS ISX15 Complete Engine Call For Price

Good Used 2015 Cummins ISX15 Diesel Engine Assembly, for Sale, with Warranty!!! S/N 79869384, Family# FCEXH0912XAU, CPL 4584, CM2350, ISX15 500, 500HP@1800RPM, 1850 Peak torque (ft-lbs) @1200RPM, Emission Control Systems: EGR, PTOX, SCRC: EPA13. T...
Stock ##S9384EN
EngineCummins ISX15 (500hp)
Eng Size15l
CPL/AR4584
FamilyFcexh0912xau
Pulled FromInternational

Used 2020 CUMMINS X15 Complete Engine Call For Price

Good Used 2020 LOW MILE Cummins X15 500HP Diesel Engine Assembly, for Sale, with Warranty!!!! S/N 80243013, Family# LCEXH0912XAZ, CM2450, CPL 5348, Cummins X15 500 @1900RPM, 1845 Peak Torque (Ft-Lb) @0950 RPM, Emission Control Systems:EGR, PTOX, ...
Stock ##S3013EN
EngineCummins X15 (500hp)
Eng Size15l
CPL/AR5348
FamilyLcexh0912xaz

Used 2017 CUMMINS X15 Complete Engine $19,500

Good Used 2017 Cummins X15 Diesel Engine Assembly, for Sale, with Warranty!!! S/N 79987336, Family# HCEXH0912XAW, 450HP@1800RPM, 1750 Peak Torque (Ft-Lbs) @1000 RPM, Emission Control Systems: EGR, PTOX, SCRC. EPA17. Displacement 15L. Tested, Inspect...
Stock ##S7336EN
EngineCummins X15 (450hp)
Eng Size15l
CPL/AR4342
FamilyHcexh0912xaw

Used 2000 CUMMINS ISM Complete Engine Call For Price

Good Used 2000 Cummins ISM Diesel Engine Assembly, for Sale, with Warranty!!! S/N 34994230, Family# YCEXH0661MAI, CPL2607, Non-EGR Model, JAKE BRAKE 305HP@2100RPM, 1150 (Ft-Lb) Torque @1200RPM, Emission Control Systems: PCM. EPA00. Tested, Inspe...
Stock ##S4230EN
EngineCummins ISM (305hp)
Eng Size10.8l
CPL/AR2607
FamilyYcexh0661mai

Used 2018 CUMMINS X15 Complete Engine $19,500

Good Used 2018 Cummins X15 Diesel Engine Assembly, for Sale, with Warranty!!! S/N 80131841, Family# JCEXH0912XAW, Date of Mfg: 12/18, 450HP@1800RPM, Peak Torque 1650 (ft-lb) @1000RPM, Emission Control Systems: EGR, PTOX, SCRC. EPA17. Tested, Inspect...
Stock ##S1841EN
EngineCummins X15 (450hp)
Eng Size15l
CPL/AR4342
FamilyJcexh0912xaw

Used 1998 CUMMINS N14 Celect Plus Complete Engine Call For Price

Good Used 1998 Cummins N14 Celect Plus Diesel Engine Assembly, for Sale, with Warranty!!! S/N 11856348, CPL2025, N-14-435E Plus Engine, Family# VCE855EJDATW, 435HP@2100RPM, 1650(Ft-Lbs) Peak torque @ 1200RPM, Emission Control Systems: PCM. EPA 1997. ...
Stock ##S6348EN
Eng Size14l
CPL/AR2025
FamilyVce855ejdatw

Used 2018 CUMMINS X15 Complete Engine $19,500

Good Used 2018 Cummins X15 Diesel Engine Assembly, for Sale, with Warranty!!! S/N 80006865, Family# HCEXH0912XAW, X15 450SA, 15L Displacement, 450Hp@1800RPM, 1850 (Ft-Lbs) Peak Torque @ 1000RPM, Emission Control Systems: EGR, PTOX, SCRC. EPA17. Test...
Stock ##S2150EN
EngineCummins X15 (450hp)
Eng Size15l
CPL/AR4342
FamilyHcexh0912xaw
Pulled FromPeterbilt

Used 2000 CUMMINS ISM Complete Engine Call For Price

Good Used 2000 Cummins ISM-305 Diesel Engine Assembly, for Sale, with Warranty!!! S/N 34995034, ISM-305V, Family# YCEXH0661MAI, CM570, CPL 2607, 305HP @ 2100RPM, 1150 (Ft-Lb) Peak Torque @ 1200 RPM, Emission Control Systems: PCM, EPA2000. Tested, I...
Stock ##S5034EN
EngineCummins ISM (305hp)
Eng Size10.8l
CPL/AR2607
FamilyYcexh0661mai

Used 2007 CUMMINS ISM Complete Engine Call For Price

Good Used 2007 Cummins ISM Diesel Engine Assembly, For Sale, With Warranty!! S/N 35173844, Family# 6CEXH0661MAX, ISM 425V, EGR MODEL, CPL 8558, CM 875, 425HP@2100RPM, 1550 Peak Torque @1200RPM, JAKE BRAKE, Emission Control Systems: PCM, EGR. EPA 04. ...
Stock ##S2030EN
EngineCummins ISM (425hp)
Eng Size10.8l
CPL/AR8558
Family6cexh0661max
Pulled FromInternational

Used 2017 CUMMINS X15 Complete Engine $19,000

Good Used 2017 Cummins X15 Diesel Engine Assembly, for Sale, with Warranty!!! S/N 79960742, Family# HCEXH0912XAW, Model X15 450ST, 450HP@1800RPM, Peak Torque 1550/1750 @1000RPM, Emission Control Systems: EGR, PTOX, SCRC, EPA17. Tested, Internally In...
Stock ##S0742EN
EngineCummins X15 (450hp)
Eng Size15l
CPL/AR4342
FamilyHcexh0912xaw

Used 2014 CUMMINS ISX12 Complete Engine $24,500

Good Used 2014 Cummins ISX12 Diesel Engine Assembly, for Sale, with Warranty!!! S/N 75028428, CPL 3711, CM2350, Family# ECEXH0729XAE, ISX12 425V, 425HP@1800RPM, 1650 ft-lbs Torque @ 1200RPM, Emission Control Systems: EGGR, PTOX, SCRC. EPA 13. Teste...
Stock ##S8428EN
EngineCummins ISX12 (425hp)
Eng Size11.9l
CPL/AR3711
FamilyEcexh0729xae