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New and Used Commercial Truck Engine Control Modules (ECM & ECU)

Browse over 10,000 new, used, and remanufactured commercial truck ECMs and ECUs for sale. We carry engine control modules for all major heavy-duty and medium-duty engines, including Cummins ISX, Detroit DD15, Caterpillar C15, and vocational favorites like the International MaxxForce and Ford Powerstroke. Whether you need a replacement PCM for a delivery truck or a programmed ECM for a Class 8 semi, filter by engine make and model to find the exact module you need.
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Showing 1 - 25 of 11,320 Engine Control Module (ECM) Listings

1 - 25 of 11,320 listings
1 - 25 of 11,320 listings
Detroit CASCADIA 125 Engine Control Module (ECM) for a Freightliner CASCADIA 125

2015 Detroit CASCADIA 125 Engine Control Module (ECM) for a Freightliner CASCADIA 125

Recently Updated
$985 USD
Used Detroit ECM Control Module A0014462835, DDE RA0014469335, MCM 2.1 HDEP EPA10/GHG14/GHG17
ConditionUsed
Fits To Make(s)FREIGHTLINER
Fits To Model(s)CASCADIA 125
Stock Number92165
MLS Number12836563
CategoryEngine Control Modules (ECM)
Last Updated8/22/2026
Location
Crandall, TX, US
Sold By
Tim Jordan's Truck Parts Inc.
(833) 359-___  SHOW
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Tim Jordan's Truck Parts Inc.
International MaxxForce DT Engine Control Module (ECM)

International MaxxForce DT Engine Control Module (ECM)

Recently Updated
$500 USD
Good used, cleaned and inspected International Navistar Maxxforce DT ECM. Part Number: 1883086C93. 30 Day Guarantee for swap or refund if not programmable. ECM's need to be programmed for...
Quantity2
ConditionUsed
Part Number1883086C93
Stock NumberRyd 1883086C93
MLS Number10406145
CategoryEngine Control Modules (ECM)
Last Updated8/22/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
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Rydemore Heavy Duty Truck Parts
2006 Mack AI-400 Engine Control Module (ECM) for 2004-2006

2006 Mack AI-400 Engine Control Module (ECM) for 2004-2006

Newly Listed
$600 USD
(GOOD USED BENCH TESTED) Mack Engine Control Module (ECM) For Sale, Fits 2004 2005 2006, Off 2006 Mack AI-400, Stock # 10440 WEBSITE LINK: https://catrucks.com/products/mack-engine-control...
ConditionUsed
Will Fit Year(s)2004-2006
Stock Number10440
MLS Number14557762
CategoryEngine Control Modules (ECM)
Last Updated8/21/2026
Location
Opa Locka, FL, US
Sold By
CA Truck Parts Inc.
(305) 688-___  SHOW
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CA Truck Parts Inc.
Mack AC Diesel ECM Part # 12MS532M Engine Computer

Mack AC Diesel ECM Part # 12MS532M Engine Computer

Recently Updated
Contact for price
(GOOD USED) Mack AC ECM Part # 12MS532M For Sale, 041101 1039S04914, Stock # 2256 Tested Inspected! All ourPARTSareTESTEDand ShipPRIORITY MAIL!OVERNIGHT SHIPPINGoptions are available!...
ConditionUsed
Fits To EquipmentDiesel Engine
Fits To Make(s)Mack
Fits To Model(s)AC
Part Number12MS532M
Stock Number2256
MLS Number10237102
CategoryEngine Control Modules (ECM)
Last Updated8/21/2026
Location
Opa Locka, FL, US
Sold By
CA Truck Parts Inc.
(305) 688-___  SHOW
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CA Truck Parts Inc.
Mack ECM 12MS532M, Bosch Part # 0 281 020 045

Mack ECM 12MS532M, Bosch Part # 0 281 020 045

Recently Updated
Contact for price
(GOOD USED) OEM Mack ECM Part # 20938264 For Sale, Diesel Engine Control Module, ECM, ECU, Bosch P/N 20938264, Stock 2536 All ourPARTSareTESTEDand ShipPRIORITY MAIL!OVERNIGHT...
ConditionUsed
Fits To EquipmentDiesel Engines
Fits To Make(s)Mack
Part Number12MS532M
Stock Number2538
MLS Number10580028
CategoryEngine Control Modules (ECM)
Last Updated8/21/2026
Location
Opa Locka, FL, US
Sold By
CA Truck Parts Inc.
(305) 688-___  SHOW
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CA Truck Parts Inc.
2006 Cummins ISM Engine Control Module (ECM) for 2004-2006 Part # 3103533, CM875

2006 Cummins ISM Engine Control Module (ECM) for 2004-2006 Part # 3103533, CM875

Newly Listed
$1,500 USD
(GOOD IUSED BENCH TESTED) CUMMINS CM875 Engine Control Module (ECM) 3103533 For Sale, Part # 3103533, CM875, Off 2006 ISM 280 CPL 8560, Stock # 10439 WEBSITE LINK:...
ConditionUsed
Will Fit Year(s)2004-2006
Part Number3103533
Stock Number10439
MLS Number14557702
CategoryEngine Control Modules (ECM)
Last Updated8/21/2026
Location
Opa Locka, FL, US
Sold By
CA Truck Parts Inc.
(305) 688-___  SHOW
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CA Truck Parts Inc.
International MaxxForce 9 Engine Control Module (ECM)

International MaxxForce 9 Engine Control Module (ECM)

Newly Listed
$2,500 USD
(GOOD USED) International Maxxforce 9 OEM Diesel Engine Control Module, ECM, ECU, for sale!!! Part #: 7095136C91; Stock #: E4654 For more information about this listing, shipping, technical...
ConditionUsed
Part Number7095136C91
Stock NumberE4654
MLS Number14555628
CategoryEngine Control Modules (ECM)
Last Updated8/20/2026
Location
Hialeah, FL, US
Sold By
JJ Rebuilders Inc.
(844) 385-___  SHOW
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JJ Rebuilders Inc.
Paccar MX-13 Engine Control Module (ECM)

Paccar MX-13 Engine Control Module (ECM)

Newly Listed
$2,000 USD
(GOOD USED/ TESTED) Paccar MX-13 OEM Diesel Engine Control Module, ECM, ECU, for sale!!! Part #: 2300479; Supersession Part #: 2302109, 705300AT; Stock #: E4653 For more information about...
ConditionUsed
Part Number2300479
Stock NumberE4653
MLS Number14555165
CategoryEngine Control Modules (ECM)
Last Updated8/20/2026
Location
Hialeah, FL, US
Sold By
JJ Rebuilders Inc.
(844) 385-___  SHOW
NUMBERCall Seller
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JJ Rebuilders Inc.
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