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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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2008 ISM CM876
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Used 2008 CUMMINS ISM Complete Engine $10,500

Used 2008 Cummins ISM Engine for Sale * S/N 35222345* CPL 2728 * 40HP * CM876 * Tested, Inspected, Run Test 3/16/26 - watch video of running engine INTERNALLY SPOTLESS!!! For more information please call 800-738-7802 * Inventory changes...
Stock ##S2345EN
EngineCummins ISM (410hp)
Eng Size10.8l
CPL/AR2728
Family8cexh0661maa
NON EGR ISM
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Used 1999 CUMMINS ISM Complete Engine $7,500

USED 1999 CUMMINS ISM ENGINE FOR SALE * S/N 34974773* CPL 2608* CM570* 370HP* ***ECM NOT INCLUDED*** JAKE BRAKE* RUNS STRONG* CLEAN ENGINE* TESTED, INSPECTED, RUN TEST 3/10/26 - WATCH VIDEO OF RUNNING ENIGNE* INVENTORY CHANGES DAILY, PLEASE...
Stock ##S4773EN
EngineCummins ISM (370hp)
Eng Size10.8l
CPL/AR2608
FamilyXcexh0661mah
ISX12 EPA13
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Used 2016 CUMMINS ISX12 Complete Engine $22,500

USED 2016 CUMMINS ISX12 ENGINE FOR SALE * S/N 75054011* CPL 4591* 350HP* CM2350* TESTED* INSPECTED* RUN TEST 3/13/26* RUNS STRONG* WATCH VIDEO OF RUNNING ENGINE* LOW MILES* FOR MORE INFORMATION PLEASE CALL 800-738-7802* STOCK# S4011EN
Stock ##S4011EN
EngineCummins ISX12 (350hp)
Eng Size11.9l
CPL/AR4591
FamilyGcexh0729xae
Pulled FromPeterbilt
ISX12 EPA 17
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Used 2018 CUMMINS ISX12 Complete Engine $24,500

USED 2018 CUMMINS ISX12 ENGINE FOR SALE S/N 78064199 350HP CPL 4892 CM2250 TESTED, INSPECTED RUN TEST 2/25/26 - RUNS EXCELLENT!! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S4199EN PRICE: $24500 EXCHANGE
Stock ##S4199EN
EngineCummins ISX12 (350hp)
Eng Size11.9l
CPL/AR4892
FamilyHcexh0729vae
Pulled FromPeterbilt
New Bearings
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Used 2013 CUMMINS ISX15 Complete Engine $19,500

USED 2013 CUMMINS ISX15 ENGINE FOR SALE S/N 79693628 CPL 3938 500HP NEW BEARINGS AND CAMSHAFT INSTALLED TESTED, INSPECTED, RUN TEST 1/9/26 - RUNS EXCELLENT - WATCH VIDEO OF RUNNING ENGINE FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK#...
Stock ##S3628EN
EngineCummins ISX15 (500hp)
Eng Size14.9l
CPL/AR3938
FamilyDcexh0912xau
Pulled FromInternational

Salvage 2013 CUMMINS ISX15 Complete Engine $3,500

2013 Core Cummins ISX15 for Sale S.N79688874 CPL3937 450HP Rebuildable Core Engine For more information please call 800-738-7802
Stock ##C8874EN
EngineCummins ISX15 (450hp)
Eng Size15l
CPL/AR3937

Salvage 2011 CUMMINS ISX15 Complete Engine $3,500

2011 CORE Cummins ISX15 Engine for Sale S/N79484545 CPL 3719 400HP For more information please call 800-738-7802
Stock ##C4545EN
EngineCummins ISX15 (400hp)
Eng Size15l
CPL/AR3719

Salvage 2011 CUMMINS ISX15 Complete Engine $3,500

Core 2011 Cummins ISX15 Engine Assembly for Sale S/N 79496097 CPL 3719 400HP This is a rebuildable core engine for sale
Stock ##C6097EN
EngineCummins ISX15 (400hp)
Eng Size15
CPL/AR3719
FamilyBcexh0912xap

Used 2018 CUMMINS ISB Complete Engine $10,500

USED 2018 CUMMINS ISB ENGINE ASSEMBLY FOR SALE 6.7L 2018 CPL 4569 250HP CM2350 TESTED, INSPECTED, RUN TESTED FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S6465EN PRICE: $10500 EXCHANGE
Stock ##S6465EN
EngineCummins ISB (250hp)
Eng Size6.7l
CPL/AR4569
FamilyJcexh0408bat

Salvage 2022 CUMMINS X15 Complete Engine $5,000

2022 Core Cummins X15 Engine S/N 80449440 CPL 5881 450HP Stock# C9440EN Price: $3500
Stock ##C9440EN
EngineCummins X15 (450hp)
Eng Size15
CPL/AR5881
FamilyCexh0912xca
Pulled FromInternational
X15 565HP
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Used 2019 CUMMINS X15 565 Complete Engine $24,500

USED 2019 CUMMINS X15 ENGINE FOR SALE S/N 80116255 CPL 4343 565HP TESTED, INSPECTED, RUN TEST 6/19/25 - WATCH VIDEO OF RUNNING ENGINE FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S6255EN PRICE: $24500 EXCHANGE
Stock ##S6255EN
EngineCummins X15 565 (565hp)
Eng Size15l
CPL/AR4343
FamilyJcexh0912xax
Pulled FromPeterbilt
X15 605HP
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Used 2019 CUMMINS X15 Complete Engine $25,000

Used 2019 Cummins X15 Engine Assembly For Sale 2019 Cummins X15 S/N 80081527 CPL 4343 605HP Tested, inspected, Run Test 6/19/25 watch video of running engine For more information please call 800-738-7802 Stock# S1527EN Price: $25000 exch...
Stock ##S1527EN
EngineCummins X15 (605hp)
Eng Size15l
CPL/AR4343
FamilyJcexh0912xax
Pulled FromPeterbilt
CUMMINS 4586 FOR SALE
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Used 2016 CUMMINS ISX15 Complete Engine $13,500

USED 2016 CUMMINS ISX15 DIESEL ENGINE FOR SALE 2016 ISX15 450HP S/N 79929823 CPL 4586 CM2350 TESTED, INSPECTED RUN TEST 9/3/25 RUNS EXCELLENT - WATCH VIDEO OF RUNNING ENGINE FOR MORE INFORMATION PLEASE CALL 800-738-7802 OR VISIT www.bootsan...
Stock ##S9823EN
EngineCummins ISX15 (450hp)
Eng Size14.9l
CPL/AR4586
FamilyGcexh0912xat
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Used 2020 CUMMINS X15 Complete Engine $27,500

USED 2020 CUMMINS X15 DIESEL ENGINE ASSEMBLY FOR SALE 2020 CUMMINS X15 CPL 4343 CM2350 565HP S/N 80240818 EPA 17 ******NEW BEARINGS INSTALLED 7/21/25 ******** TESTED, INSPECTED, RUN TEST 7/21/25 -RUNS EXCELLENT - WATCH VIDEO OF RUNNING E...
Stock ##S0818EN
EngineCummins X15 (565hp)
Eng Size15l
CPL/AR4343
FamilyLcexh0912xa
Pulled FromPeterbilt

Used 2019 CUMMINS X15 Complete Engine $23,500

USED 2019 CUMMINS X15 DIESEL ENGINE ASSEMBLY FOR SALE 2019 CUMMINS X15 S/N 80232182 CPL4343 CM2350 EPA 17 565HP TESTED, INSPECTED RUN TEST 6/23/25 - RUNS EXCELLENT!!! WATCH VIDEO OF RUNNING ENGINE FOR MORE INFORMATION PLEASE CALL 800-73...
Stock ##S2182EN
EngineCummins X15 (565hp)
Eng Size15l
CPL/AR4343
Pulled FromPeterbilt
X15 565HP
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Used 2021 CUMMINS X15 565 Complete Engine $24,500

USED 2021 CUMMINS X15 DIESEL ENGINE 2021 CUMMINS X15 EPA21 565HP S/N 80329533 LOW MILES!!! TESTED, INSPECTED, RUN TEST 6/19/25 - RUNS GREAT!!! SOUNDS GREAT!!! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S9533EN PRICE: $24500 ...
Stock ##S9533EN
EngineCummins X15 (565hp)
Eng Size15l
CPL/AR5479
FamilyMcexh0912xcb
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Used 2018 CUMMINS X15 Complete Engine $15,000

USED 2018 CUMMINS X15 DIESEL ENGINE 2018 EPA17 400HP CM2350 CPL 4342 S/N 80042347 TESTED, INSPECTED, RUN TEST 6/19/25 - RUNS GREAT!!! WATCH VIDEO OF RUNNING ENGINE!!! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S2347EN PRICE: $15...
Stock ##S2347EN
EngineCummins X15 (400hp)
Eng Size15l
CPL/AR4342
FamilyJcexh0912xaw
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Used 2019 CUMMINS X15 Complete Engine $15,000

2019 CUMMINS X15 ENGINE FOR SALE 2019 EPA17 CUMMINS X15 CPL 4342 CM2350 450HP WARRANTY!!! TESTED, INSPECTED, RUN TEST 5/10/25 RUNS EXCELLENT!!! WATCH VIDEO OF RUNNING ENGINE!!! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S5986...
Stock ##S5986EN
EngineCummins X15 (450hp)
Eng Size15l
CPL/AR4342
FamilyKcexh0912xaw
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Used 2018 CUMMINS X15 Complete Engine $15,000

2018 CUMMINS X15 ENGINE FOR SALE 2018 EPA17 CUMMINS X15 CPL 4342 CM2350 450HP WARRANTY!!! TESTED, INSPECTED, RUN TEST 5/10/25 RUNS EXCELLENT!!! WATCH VIDEO OF RUNNING ENGINE!!! FOR MORE INFORMATION PLEASE CALL 800-738-7802 STOCK# S1424...
Stock ##S1424EN
EngineCummins X15 (430hp)
Eng Size15l
CPL/AR4342
FamilyJcexh0912xaw
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Used 2012 CUMMINS ISB Complete Engine $10,500

USED 2012 CUMMINS ISB DIESEL ENGINE 2012 EPA 10 REBUILT 2019 BY REVIVA S/N 73188325 - REVIVA S/N 65119C25 EPA10 CPL 3071 220HP TESTED, INSPECTED, RUN TEST 6/5/25 - WATCH VIDEO OF RUNNING ENGINE FOR MORE INFORMATION PLEASE CALL 800-738-7802 ...
Stock ##S8325EN
EngineCummins ISB (220hp)
CPL/AR3071