This is a Detroit DD15 engine for sale in fairly used condition: a complete 14.8 litre inline six diesel, inspected, tested and ready to ship anywhere in the world. The DD15 is the engine behind most Freightliner Cascadia and Western Star trucks built since 2008, and good used ones are the fastest way to get a modern truck earning again.
We match the engine to your assembly number and truck VIN, and send photos of the actual unit before you pay.
What’s Included With This Detroit DD15 Engine for Sale
- Block with crankshaft, liners, pistons and rods
- Cylinder head with dual overhead camshafts and valve train
- Common rail injectors (condition noted on your quote)
- Turbocharger, and turbo compound unit on engines that have it
- EGR cooler and valve, intake and exhaust manifolds
- Oil pan, oil cooler, front cover and flywheel housing
- Test results, photos and a heavy duty skid for shipping
The engine computer, harness and aftertreatment are not included unless agreed in writing. Most buyers keep their existing aftertreatment. Long blocks are available on request.
Detroit DD15 Specifications
| Engine | Detroit DD15 |
| Layout | Inline six, four stroke, turbocharged |
| Displacement | 14.8 litres (903 cubic inches) |
| Bore x stroke | 139 x 163 mm |
| Valve train | Dual overhead cams, 4 valves per cylinder |
| Fuel system | Amplified common rail system (ACRS) |
| Power | About 455 to 505 hp |
| Torque | About 1,550 to 1,750 lb-ft on common ratings |
| Emissions | Cooled EGR, DPF, and SCR with DEF from EPA10 |
| Common assembly numbers | 472906S (EPA10, GHG14), 472910S (GHG17) |
| Dry weight | About 2,800 to 3,000 lb |
| Years | 2007 to the present |
Trucks This Engine Fits
Each Detroit DD15 engine for sale in our stock is matched to one of these trucks:
- Freightliner Cascadia, Columbia, Century Class and Coronado
- Freightliner 114SD and 122SD
- Western Star 4900, 5700XE, 49X and 57X
- Other vocational chassis built on Daimler platforms
Wiring, computers and aftertreatment changed between generations, so send us your VIN before ordering.
Which Generation Do You Need?
EPA07 engines (about 2008 to 2010) use EGR and a particulate filter without DEF. EPA10 engines added SCR with DEF. GHG14 engines (about 2013 to 2015) brought turbo, software and aftertreatment changes. GHG17 engines (from about 2016) carry 472910S assembly numbers and better fuel economy. The newest Gen 5 engines arrived around 2021.
Generations are not simple swaps. Matching the generation is the first thing we do with every Detroit DD15 engine for sale.
How We Test Every Detroit DD15 Engine for Sale
- We record the serial number, assembly number and rating.
- We read the engine computer where possible for mileage, hours and fault codes.
- We run a compression or cylinder cut-out test.
- We check the oil for coolant, fuel and metal.
- Where the engine runs, we check oil pressure, crankcase pressure and smoke.
- We check the turbo and turbo compound unit for play and leaks.
- We photograph the engine from every side, including the data plate.
You get these results with your quote. See our guide to tested used engines.
Common DD15 Problems We Check For
- EGR cooler leaks and sticking EGR valves
- Oil leaks at the turbo compound unit
- High crankcase pressure from ring or liner wear
- Water pump and front seal leaks
- Injector damage from dirty or wet fuel
Many DD15 faults are really aftertreatment problems, such as a clogged DPF, a blocked doser or a bad NOx sensor. Make sure the fault is inside the engine before you replace it. If it is, a tested Detroit DD15 engine for sale is the quickest fix.
Price and What Affects It
The price shown is for a fairly used, tested engine. The final price of your Detroit DD15 engine for sale depends on:
- Generation and assembly number
- Mileage, hours and test results
- Whether the engine computer is included
- Complete engine or long block
- Freight to your port or door
Everything is confirmed in a written quote. See our guide to replacement engine cost.
Replace or Rebuild Your Old Engine?
An in-frame rebuild keeps your own engine, but the truck sits while the work is done and hidden damage can push the bill up. Fitting a tested Detroit DD15 engine for sale is usually faster, you know its condition first, and your old engine may still be worth something as a core. If the block or crank is damaged, or the truck earns every day, replacing usually wins.
Programming and Aftertreatment
The DD15 works with separate engine, aftertreatment and truck computers. After the swap, the engine computer needs the right calibration and injector codes, and truck settings like road speed and cruise need to be set. Most heavy truck shops with Detroit diagnostic software can do this. We share the engine data with your mechanic to save time.
If your old engine sent oil, coolant or metal into the exhaust, check the DPF before starting the new engine. An oil soaked filter will clog fast and can catch fire during regeneration.
Keeping Your DD15 Healthy
- Change oil and filters on schedule with the right low ash oil.
- Use clean fuel and drain water from the separator often.
- Keep DEF fresh and clean.
- Limit long idling, which loads up the DPF.
- Fix coolant leaks and overheating straight away.
Serviced this way, a DD15 can run a million miles or more in highway work. That is why a well tested Detroit DD15 engine for sale with a clean history is such good value. If you run several trucks, ask about keeping a spare Detroit DD15 engine for sale ready so a failure costs you days, not weeks.
Worldwide Shipping
Every engine is drained, sealed, strapped to a heavy skid or crated, and shipped by sea or road freight with tracking. We ship to Africa, Europe, the Middle East, Asia, Latin America, the Caribbean and North America, and prepare the export paperwork. See our shipping policy.
Warranty and Returns
Each engine comes with a written warranty. Read our used engine warranty guide and our refund and returns policy before you order.
Installation Tips
- Flush the cooling system and check the radiator.
- Clean the charge air cooler if the old engine failed with oil or metal in the intake.
- Fit new filters, add fresh low ash oil and prime the fuel system.
- Program the engine computer and clear old codes.
- Idle to temperature and check for leaks before the first load.
Why Buy From NJ Global Auto Parts
- We only sell engines, so we know what to look for.
- Every engine is tested and photographed before it is quoted.
- We confirm the fit from your VIN and assembly number before you pay.
- You get a written quote, tracking and a written warranty.
- We ship worldwide and handle export paperwork.
Fleets can order more than one engine. Learn more about us.
Learn More Before You Buy
Our full guide to the Detroit DD15 engine for sale covers each generation, the emissions system, fuel economy and seven checks before you pay. For a common DD15 truck, see the Freightliner Cascadia page.
We also sell the Detroit Diesel Series 60, the Volvo D13 and the Caterpillar C13. See all our used engines.
Frequently Asked Questions
Which generation is this Detroit DD15 engine for sale?
We stock several. Send your assembly number or VIN and we will match it.
Does it include the aftertreatment?
No, unless agreed in writing. Most buyers keep their own.
Can I fit a GHG17 engine in an EPA10 truck?
Not as a simple swap. Ask us before you buy.
Do you ship to my country?
Yes, worldwide, with export paperwork handled.
How do I pay?
Bank transfer only. Details come with your written quote.
Order Your Engine
Send your engine serial number, assembly number or VIN through our contact page or call +1 (209) 733-0882. We will confirm the fit, send photos of the actual Detroit DD15 engine for sale and give you a written price with freight, usually the same day.
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