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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 11,302 Engine Control Module (ECM) Listings

1 - 25 of 11,302 listings
1 - 25 of 11,302 listings
Cummins ISB Engine Control Module (ECM) for a Freightliner MT55 Chassis

2001 Cummins ISB Engine Control Module (ECM) for a Freightliner MT55 Chassis

Recently Updated
$400 USD
ECM for a ISB 5.9L, 185 HP engine. S/N 3004023, P/N 3944124, D/C 08/28/2000; ESN 56766740, ECM Code J90669.13 (Pull-Out)
ConditionUsed
Fits To Make(s)FREIGHTLINER
Fits To Model(s)MT55 Chassis
Stock NumberUPS-659493-5
MLS Number14289205
CategoryEngine Control Modules (ECM)
Last Updated10/9/2026
Location
Dinuba, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Garabedian Equipment
Detroit DD13 Engine Control Module (ECM)

Detroit DD13 Engine Control Module (ECM) Being Dismantled (Parts Available)

Newly Listed
$150 USD
(CORE/ FOR PARTS OR NOT WORKING) Detroit DD13 Diesel Engine Control Module, ECM, ECU, for sale!!! Part #: A0054467740; Stock #: E4723 For more information about this listing, shipping,...
ConditionDismantled
Part NumberA0054467740
Stock NumberE4723
MLS Number14654757
CategoryEngine Control Modules (ECM)
Last Updated10/9/2026
Location
Hialeah, FL, US
Sold By
JJ Rebuilders Inc.
(844) 385-___  SHOW
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JJ Rebuilders Inc.
Caterpillar C4.4 Control Module ECM ECU 206-3663-00

Caterpillar C4.4 Control Module ECM ECU 206-3663-00

Newly Listed
$2,000 USD
(GOOD USED) Caterpillar C4.4 Diesel Engine Control Module, ECM, ECU, for sale!!!!!! Part #: 206-3663-00;Other Part #:304-6436,582-6895, 10R-8112,11R-0326 Stock #: E4722 For more information...
ConditionUsed
Part Number206-3663-00
Stock NumberE4722
MLS Number14654629
CategoryEngine Control Modules (ECM)
Last Updated10/9/2026
Location
Hialeah, FL, US
Sold By
JJ Rebuilders Inc.
(844) 385-___  SHOW
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JJ Rebuilders Inc.
Cummins QSB 3.3 Engine Control Module (ECM)

Cummins QSB 3.3 Engine Control Module (ECM)

Newly Listed
$1,500 USD
(GOOD USED/ TESTED) Cummins QSB3.3 Diesel Engine Control Module, ECM, ECU, for sale!!!! Part #: 4988820; Service Model Name: QSB3.3 CM2150; Stock #: E4721 For more information about this...
ConditionUsed
Part Number4988820
Stock NumberE4721
MLS Number14654080
CategoryEngine Control Modules (ECM)
Last Updated10/9/2026
Location
Hialeah, FL, US
Sold By
JJ Rebuilders Inc.
(844) 385-___  SHOW
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JJ Rebuilders Inc.
Engine Control Module (ECM) for a Sterling

Engine Control Module (ECM) for a Sterling

Recently Updated
$700 USD
Nous livrons partout au Canada et aux États-Unis. We ship anywhere in Canada USA. - Stock: 504CPC - Sterling Computer Powertrain Control - P/N: A0004464335 - No core + 150$ USD
ConditionUsed
Fits To Make(s)Sterling
Part NumberA0004464335
Stock Number504CPC
MLS Number11945382
CategoryEngine Control Modules (ECM)
Last Updated10/9/2026
Location
Beauceville, QC, Canada
Sold By
Camions Gilbert
(888) 595-___  SHOW
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Camions Gilbert
Cummins 3684009RX Engine Control Module (ECM) for a International 9400

2006 Cummins 3684009RX Engine Control Module (ECM) for a International 9400

Newly Listed
$449.99 USD
Cummins 3684009RX Engine Control Module ECM OEM, From 2006 International 9400 VIN 2HSCDAPR76C223673
ConditionUsed
Fits To Make(s)INTERNATIONAL
Fits To Model(s)9400
Stock Number149237
MLS Number14652267
CategoryEngine Control Modules (ECM)
Last Updated10/9/2026
Location
Owensboro, KY, US
Sold By
West Side Truck Parts
(866) 828-___  SHOW
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West Side Truck Parts
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