JJ Engine Parts
Cummins ISX15 EPA13 OEM Diesel Engine Thermostat Housing 2862067
$150.00Unit price /UnavailableJJ Engine Parts
Cummins ISX15 EPA13 OEM Diesel Engine Thermostat Housing 2862067
$150.00Unit price /UnavailableJJ Engine Parts
Horton Fan Clutch for Mercedes Benz MBE900 Engine 991450 981445
$550.00Unit price /UnavailableJJ Engine Parts
2012 Detroit DD13 OEM Diesel Engine Control Module ECM ECU A0004467635
$800.00Unit price /UnavailableJJ Engine Parts
2019 Cummins L9 Diesel Engine Control Module ECM ECU 4384413 4384412 CM2350
$1,500.00Unit price /UnavailableJJ Engine Parts
Cummins ISX15 EPA13 Diesel Engine NOX Sensor with NOX Elbow 4326870 3686708
$199.99Unit price /UnavailableJJ Engine Parts
Cummins ISC ISL EPA13 Nox Sensor with Nox Elbow 4326873 5292517
$99.99Unit price /UnavailableJJ Engine Parts
Cummins ISB6.7L Diesel Engine Air Intake Connection 5268153
$120.00Unit price /UnavailableJJ Engine Parts
Paccar MX-13 EPA17 Diesel Engine Fuel Injector 2047600
$200.00Unit price /UnavailableJJ Engine Parts
Cummins ISB6.7 QSB6.7 Diesel Engine Water Inlet Connection 5260973
$99.99Unit price /UnavailableJJ Engine Parts
International DT466E Control Module ECM ECU 1845117C5 1839368C2 1842443C97
$800.00Unit price /UnavailableJJ Engine Parts
Cummins ISB6.7L Engine Control Module ECM ECU 5290170 5317106 5290171 5317107
$1,000.00Unit price /UnavailableJJ Engine Parts
Detroit Series 60 12.7L DDEC IV Diesel Engine Control Module ECM ECU P23519307
$2,500.00Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB 6.7L Diesel Engine Oil Filter Head 5285027 3955034
$80.00Unit price /UnavailableJJ Engine Parts
Cummins ISX15 OEM Diesel Engine Lubricating Oil Pump 2892706 3687527 5532492
$200.00Unit price /Unavailable- Sold out
JJ Engine Parts
Zexel Fuel Pump for Isuzu 4HE1XS 4.8L Diesel Engine 105934-0070
$1,750.00Unit price /Unavailable JJ Engine Parts
Cummins N14 Celect Plus OEM Diesel Engine Control Module ECM ECU 3408300
$2,000.00Unit price /UnavailableJJ Engine Parts
Mack MP7 OEM Diesel Engine Control Module ECM ECU 21358126
$2,000.00Unit price /Unavailable

Used Diesel Engine Parts for Trucks & Fleet Repairs
JJ Engine Parts supports fleet operators, repair shops, and independent diesel mechanics who need dependable used diesel engine parts. Whether you are sourcing Cummins or Detroit engine parts, or supporting other diesel platforms, selecting the correct component is critical.
That’s why we focus on parts that match OEM specifications and real-world applications. Our inventory is structured to help customers quickly find the right solution for rebuilds, replacements, and legacy engine repairs.
Used Engine Components Available
Our collection includes used truck engine parts for sale that are commonly required in diesel repair and maintenance. Availability changes based on inventory, but supported components often include:
- Used ECM ECU for sale (OEM and inspected used options)
- Used turbochargers for sale
- Cooling system components
- Affordable used engine parts for budget-conscious repairs
- Used OEM components for major diesel platforms, including Detroit and Cummins engine parts
Each listing is reviewed for compatibility with specific engine models whenever possible and verified prior to shipment.

Nationwide Shipping & Fitment Assistance at JJ Engine Parts
We ship used diesel engine parts across the United States, depending on part size and destination. JJ Engine Parts regularly supports major diesel platforms, including Cummins, Detroit Diesel, Caterpillar, Volvo, and PACCAR engines. Browse our selection of used engine parts, or contact our team to help you source the right component for your diesel truck.
Frequently Asked Questions About Used Engine Parts
How do I find the correct used engine part?
How do I find the correct used engine part?
Fitment depends on your engine model and serial number. Contact us for assistance before ordering.
Are used ECM or ECU units available?
Are used ECM or ECU units available?
Yes. Used ECM ECU units are available in OEM and inspected options when in stock.
Do you sell used turbochargers?
Do you sell used turbochargers?
Yes. Used turbochargers are offered based on availability.
Are used OEM engine components reliable?
Are used OEM engine components reliable?
When properly inspected and matched to the correct engine, used OEM components can provide dependable performance.
Do you ship used truck engine parts nationwide?
Do you ship used truck engine parts nationwide?
Yes, we ship used engine parts across the United States, depending on part size and destination.