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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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ISX15 CPL 4587
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Used 2016 CUMMINS ISX15 Complete Engine $19,500

Used 2016 Cummins ISX15 Engine for Sale * S/N 79942625 * CPL 4587 * 500HP * CM2350 * Tested, Inspected, Run Test 4/27/26 - Engine sounds GREAT!!! Big HP!!! For more information please call 800-738-7802 * Inventory changes daily, please c...
Stock ##S2925EN
EngineCummins ISX15 (500hp)
Eng Size15l
CPL/AR4587
FamilyGcexh0912xau
TransRTLO18918B
Pulled FromFreightliner
X15 565HP
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Used 2017 CUMMINS X15 Complete Engine $27,500

Used 2017 Cummins X15 Engine for Sale * S/N 80019344 * 565HP * CM2350 * CPL 4343 * Tested, Inspected, Run Test 4/30/26 - LIKE NEW - RUNS GREAT!!! For more information please call 800-738-7802 * Inventory changes daily, please call for av...
Stock ##S9344EN
EngineCummins X15 565 (565hp)
Eng Size15l
CPL/AR4343
FamilyHcexh0912xax
TransRTLO18918
Pulled FromKenworth
ISB CPL 4515
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Used 2015 CUMMINS ISB Complete Engine $11,500

Used 2015 Cummins ISB Engine for Sale * S/N 58555963 * CPL 4515 * 240HP * CM2350 * EPA 13 * Tested, Inspected, Run Test 4/24/26 - Engine sounds great!!! Watch video of running engine!!! For more information please call 800-738-7802 * Inve...
Stock ##S5963EN
EngineCummins ISB (240hp)
Eng Size6.7l
CPL/AR4515
FamilyFcexh0408bap
Used Reman CPL3719
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Used 2018 CUMMINS ISX15 Complete Engine $17,500

Used 2018 Reman EPA10 Cummins ISX15 Diesel Engine for Sale* S/N 60830902* CPL3719* 450HP * EPA10 * CM2250 * Tested, Inspected, Run Tested 4/20/26 - THIS ENGINE IS LIKE NEW!!! Watch video of running engine* For more information please ca...
Stock ##S0902EN
EngineCummins ISX15 (450hp)
Eng Size14.9l
CPL/AR3719
FamilyCcexh0912xap
ISX CPL 2732
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Used 2008 CUMMINS ISX Complete Engine $12,500

Used 2008 Cummins ISX Engine for Sale * S/N 79306446 * CPL 2732 * 425HP * Tested, Inspected, Run Tested 4/9/26 - Watch video of running engine * For more information please call 800-738-7802 * Inventory changes daily, please call for avail...
Stock ##S6446EN
EngineCummins ISX (425hp)
Eng Size14.9l
Family8cexh0912xak
TransFRO16210C
Pulled FromVolvo
X15 565HP For Sale
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Used 2018 CUMMINS X15 Complete Engine $24,500

Used 2018 Cummins X15 Engine for Sale * S/N 80028810 * 565HP * CM2350 * CPL 4343 * Tested, inspected, Run Test 4/7/26 * Engine Runs STRONG * LOW MILES!!! For more information please call 800-738-7802 * Inventory changes daily, please ...
Stock ##S8810EN
EngineCummins X15 (565hp)
Eng Size15l
CPL/AR4343
FamilyHcexh0912xax
TransUltra shift
Pulled FromKenworth
ISX CPL 8520

Used 2004 CUMMINS ISX Complete Engine $12,500

Used 2004 Cummins ISX Engine for Sale* S/N 79075666* CPL 8520* 400HP* Tested, Inspected, Run Test 3/31/26 Runs Strong!! For more information please call 800-738-7802* Inventory changes daily, please call for availability* Stock# S5666EN
Stock ##S5666EN
EngineCummins ISX (400hp)
Eng Size14.9l
CPL/AR8520
FamilyD103004bx03
N14 Celect Plus
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Used 1996 CUMMINS N14+ Complete Engine $12,500

Used 1996 Cummins N14 Celect Plus Engine for Sale* S/N 11817578* 460+ HP* CPL 2025* Tested, Inspected, Run Test 3/19/26 - Runs Excellent - Watch video of running engine* For more information please call 800-738-7802* Inventory changes daily, pl...
Stock ##S214EN
EngineCummins N14 Celect Plus (460hp)
Eng Size14l
CPL/AR2025
FamilyD093628bb15
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

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
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
Play Video

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