This is a Duramax LMM engine for sale in fairly used condition: a complete 6.6 litre V8 turbo diesel out of a 2007.5 to 2010 Chevrolet Silverado or GMC Sierra HD, inspected, compression-tested and ready to ship worldwide. It’s the last Duramax with the tough Bosch CP3 pump, and it doesn’t need DEF.
We confirm fitment from your VIN, check the oil for fuel dilution, and send photos of the actual engine before you pay.
What’s Included With This Duramax LMM Engine for Sale
- Cast iron block with crank, rods and pistons
- Both aluminium cylinder heads with valvetrain
- Injectors and fuel rails (condition noted on your quote)
- Bosch CP3 high-pressure fuel pump
- Garrett variable geometry turbocharger
- Intake, EGR valve and cooler
- Valve covers, oil pan and front cover
- Compression results, photos and crating on a pallet
The DPF, computer, harness and Allison transmission aren’t included unless we agree it in writing.
Duramax LMM Specifications
| Engine | GM 6.6L Duramax LMM |
| Layout | 90-degree V8, turbocharged, intercooled, 4 valves per cylinder |
| Displacement | 6.6 L (402 cu in) |
| Bore x stroke | 103 mm x 99 mm |
| Compression | 16.8:1 |
| Fuel system | Bosch common rail with CP3 pump |
| Output | 365 hp, 660 lb-ft |
| Emissions | EGR and DPF, no DEF |
| VIN code | 8th digit 6 |
| Oil capacity | About 10 quarts with filter |
| Transmission | Allison 1000 6-speed automatic |
More on the engine family is in the Duramax V8 article on Wikipedia.
Vehicles This Duramax LMM Engine for Sale Fits
- 2007.5 to 2010 Chevrolet Silverado 2500HD and 3500HD (new body)
- 2007.5 to 2010 GMC Sierra 2500HD and 3500HD (new body)
- Some GM medium-duty trucks of the same era
2007 Classic-body trucks used the LBZ, and 2011 and later trucks use the LML. None of them swap straight across. We match every order to your VIN, and medium-duty versions may use different brackets and wiring, so send the VIN first.
Condition and Testing
Every Duramax LMM engine for sale on this page is fairly used and tested. Before listing, we:
- Run compression or leak-down on all eight cylinders
- Check blow-by
- Inspect the oil for fuel dilution, coolant or metal
- Check turbo shaft play and vane movement
- Look at the intake for dust
- Check the EGR cooler for coolant leaks
- Turn the crank by hand to feel for binding
You get the results and photos of the exact engine with your quote.
The DPF and Fuel Dilution
The LMM’s particulate filter burns off soot by injecting extra fuel during regenerations. On trucks that do lots of short trips, some of that fuel washes past the rings into the oil, which can wear an engine faster than its mileage suggests. That’s why we look hard at oil condition and blow-by on every Duramax LMM engine for sale. Rules on emissions equipment vary by country, and removing it from a road vehicle is illegal in many places, so check what applies where you live.
Why the LMM Is Good Value
The LMM keeps the CP3 pump, which has a far better record than the CP4 on the LML that followed. It has LBZ-style internals, makes 365 hp from the factory, and doesn’t need DEF. For a lot of owners, a Duramax LMM engine for sale is the smartest money in the early Duramax range.
Do You Need a Replacement Engine?
A clogged EGR, a sticky turbo or a leaking water pump is a repair. It’s time to look at a Duramax LMM engine for sale when you have a knock, a spun bearing, heavy blow-by, low compression, metal in the oil or coolant loss with no outside leak. A tested used engine is usually cheaper and quicker than a rebuild. Our replacement engine cost guide helps you compare.
Used vs Remanufactured
Remanufactured LMM long blocks often come without injectors, the CP3 or the turbo. Add those back and the cost climbs quickly. A fairly used Duramax LMM engine for sale arrives more complete, has already run in a truck, and costs far less overall.
Why Buy This Duramax LMM Engine for Sale
- Tested with real numbers for every cylinder
- Fitment confirmed by VIN before you pay
- Photos of the actual engine
- Written warranty
- Worldwide shipping with tracking
Install Advice
- Fit a new air filter and check the intake ducting for leaks
- Clean the intercooler and pipes after any turbo failure
- Change the fuel filter and bleed the fuel system
- Refill and bleed the cooling system with the correct coolant
- Prime the oil system before first start
- Check the DPF condition, since a clogged filter causes problems for a healthy engine
Check the oil level between changes for the first few months. A rising level means fuel is getting in, and catching it early protects your Duramax LMM engine for sale.
Who Buys This Engine
Owners keeping a good 2008 to 2010 truck on the road, contractors and farmers, hot-shot drivers, fleets, repair shops, and exporters rebuilding trucks for other markets. Fleets often keep a spare Duramax LMM engine for sale on the shelf so one failure doesn’t park a truck for weeks.
Towing, Heat and Fuel
The LMM and six-speed Allison are a strong towing pair, and long hauls actually help the DPF regenerate cleanly. Clean the radiator, intercooler and transmission cooler every season, use the correct coolant, and change fuel filters on time, because common-rail systems hate water and dirt. Treat it this way and your Duramax LMM engine for sale will pull like the factory engine did.
Shipping Worldwide
We ship to buyers across the Americas, the Caribbean, Europe, Africa, the Middle East, Asia and Oceania. The engine is drained, sealed, bolted to a pallet and wrapped. Freight is quoted by weight and destination, and we handle export paperwork. See our shipping policy.
Payment and Ordering
We accept bank transfer only.
- Add this Duramax LMM engine for sale to your cart, or send us your VIN.
- We confirm the fit and send photos, test results and a written quote with freight.
- You pay by bank transfer.
- We crate and ship the engine and send tracking.
Read our refund and returns policy before ordering.
More Reading
Our Duramax LMM buyer’s guide covers the DPF, weak spots and buying checks in detail. You may also need the Allison 1000 transmission. For 2011 to 2016 trucks see the Duramax LML engine. Browse all Chevy engines or the full shop.
Questions
Is this engine new?
No. It’s fairly used and tested.
Does the LMM need DEF?
No. DEF arrived with the LML in 2011.
Is shipping included?
No. We quote freight with the engine.
How do I order?
Add this Duramax LMM engine for sale to your cart, or send your VIN through our contact page. You can also call +1 (209) 733-0882 or WhatsApp +1 209 690 5983. We confirm the fit before you pay.
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