JJ Engine Parts
International OEM Maxxforce DT Engine Control Module ECM ECU 1883086C92
$1,000.00Unit price /UnavailableJJ Engine Parts
Detroit DD15 OEM Diesel Engine Control Module ECM ECU A0014465835
$800.00Unit price /UnavailableJJ Engine Parts
Paccar MX-13 Engine Control Module ECM ECU 2037394 2298833 2160700 2295122
$2,000.00Unit price /Unavailable- Sold out
JJ Engine Parts
Caterpillar C6.4 OEM Diesel Engine Control Module ECU ECM 331-7539-02
$1,000.00Unit price /Unavailable JJ Engine Parts
Horton Fan Clutch for International Maxxforce 11 13 9906014 9806014 3625107C95
$400.00Unit price /Unavailable- Sold out
JJ Engine Parts
Horton Fan Clutch for Detroit Series 60 79A9223 989223 98A9223 799223 999223
$650.00Unit price /Unavailable JJ Engine Parts
Cummins OEM Fan Hub Shaft with Pulley 3003755 3059970 3047996
$250.00Unit price /UnavailableJJ Engine Parts
Cummins OEM Fan Hub Shaft with Pulley 3003735 3007660
$250.00Unit price /UnavailableJJ Engine Parts
Paccar MX-13 OEM Engine Control Module ECM ECU 2160700 2037394 2298833
$2,000.00Unit price /UnavailableJJ Engine Parts
Caterpillar C11 C13 OEM Diesel Engine Air Intake Manifold 243-2508
$110.00Unit price /UnavailableJJ Engine Parts
Caterpillar OEM Diesel Engine Intake Elbow 230-6326 282-2020
$150.00Unit price /UnavailableJJ Engine Parts
Cummins N14 Celect Plus Diesel Engine Control Module ECM ECU 3408300 3096662
$2,000.00Unit price /UnavailableJJ Engine Parts
Freightliner Cascadia OEM OVER RIDE/ENG SHDN Switch A06-90128-004
$19.99Unit price /UnavailableJJ Engine Parts
Freightliner Cascadia Suspension Height Dash Console Rocker Switch A12-26539-007
$19.99Unit 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.