JJ Engine Parts
Cummins ISB QSB 6.7L Diesel Engine Front Cover 5619516
$200.00Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB 6.7L NOX Sensor with Exhaust Outlet Connection 5295473 5264811
$649.99Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB Compressor Water Outlet Tube 5260950
$35.00Unit price /Unavailable- Sold out
JJ Engine Parts
Cummins ISB QSB Diesel Engine EGR Cooler 5341879 5529387
$800.00Unit price /Unavailable - Sold out
JJ Engine Parts
Cummins ISB QSB Diesel Engine EGR Cooler 5529387 5341879
$800.00Unit price /Unavailable JJ Engine Parts
Cummins ISB QSB Engine Air Intake Connection 5403048 5293390
$180.00Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB Engine Flexible Hose Turbo Drain Tube 5336197
$45.00Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB Engine Water Inlet Connection 5339634
$190.00Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB Exhaust Cooler Water Outlet Connection 5365313
$250.00Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB Front Engine Support Motor Mount 4935833
$350.00Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB Fuel Drain Tube 5317100 5317167 5317102
$100.00Unit price /Unavailable- Sold out
JJ Engine Parts
Cummins ISB QSB OEM Air Intake Connection with Air Transfer Pipe 5403048 5272428
$250.00Unit price /Unavailable JJ Engine Parts
Cummins ISB QSB OEM Diesel Engine Exhaust Manifold 5564141
$199.99Unit price /UnavailableJJ Engine Parts
Cummins ISB QSB OEM Diesel Engine Fuel Filter 5563061
$300.00Unit price /Unavailable

New Diesel Engine Parts for Major Truck Platforms
JJ Engine Parts inventory includes new ECM and ECU modules, turbochargers, sensors, and other essential engine components built to meet OEM specifications.
We support major diesel platforms, including:
- Cummins
- Detroit Diesel
- Caterpillar
- Volvo
- PACCAR
Choosing new diesel engine parts helps maintain factory performance, proper electronic calibration, and long-term reliability for fleet maintenance programs.
New OEM Engine Components & Replacement Parts Available
Our collection may include new ECM ECU modules and new turbochargers for sale. If you need a new turbocharger replacement, we can help confirm the right part number for your engine model. All parts are structured by application whenever possible to simplify ordering. JJ Engine Parts ships nationwide across the United States.

Why Choose JJ Engine Parts?
- 25+ years of diesel engine industry experience
- OEM-specification components
- Fitment verification before shipping
- Support for fleet and repair facilities
- Nationwide shipping
Frequently Asked Questions About New Engine Parts
Do you sell new OEM engine parts for sale?
Do you sell new OEM engine parts for sale?
Yes. We supply new OEM engine parts for major diesel platforms.
Can you help confirm part compatibility?
Can you help confirm part compatibility?
Yes. Provide your engine model or serial number for support.
Are new ECM ECU modules available?
Are new ECM ECU modules available?
Yes, based on current inventory.
Do you offer new turbochargers for sale?
Do you offer new turbochargers for sale?
Yes. Availability depends on inventory.
Do you ship new diesel engine parts nationwide?
Do you ship new diesel engine parts nationwide?
Yes, we ship across the United States.