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LMM Duramax Specifications & Information

LMM Duramax Specs

2008-2010 GMC Sierra & Chevy Silverado HD 6.6L LMM Duramax Specs

The LMM Duramax refers to Chevrolet Silverado HD and GM Sierra HD trucks equipped with the 6.6L Duramax diesel engine between the years of 2007.5-2010. It was very similar to the LBZ, but it featured an all-new emissions device, a diesel particulate filter. While it reduced emissions output drastically, the DPF system on the LMM resulted in these trucks having terrible fuel economy. This is mainly because of the post-injection regeneration method used. The DPF system and the regeneration process it undergoes is one of the LMM Duramax truck’s biggest problems. Despite the DPF system, the LMM Duramax is still a reliable and capable diesel. You can find everything you need to know about this truck in our LMM Duramax specifications chart below.

2010 Chevrolet Silverado 3500HD Lmm Duramax
2010 Chevrolet Silverado 3500 HD LMM Duramax
Picture courtesy of Chevrolet Media
Manufactured Years:2007.5-2010
Engine Design: 6.6L 90-Degree V8 Turbocharged Diesel
Transmission:6-Speed Auto Allison 1000 Transmission
Vin Identification:
(8th Digit)
Displacement:6.6 Liters or 403 Cubic Inches
Engine Weight:835 Lbs
Bore:4.055″ or 103 mm
Stroke:3.897″ or 99 mm
Block Material:Cast Iron
Cylinder Head:Cast Aluminum
Crankshaft:Forged Steel
Connecting Rods:Forged Steel
Compression Ratio:16.8:1
Firing Order:1-2-7-8-4-5-6-3
Turbocharger/Air:Garrett GT3788VA Variable Vane Turbocharger
And Intercooler
Fuel Injection:Direct Injection High Pressure Common Rail
with Bosch CP3 Injection Pump
Valvetrain:Overhead Valve (OHV) 4 Valves per cylinder (32V)
Engine Oil Capacity:10 Quarts With Filter
Fuel Tank Size:Short Bed: 26 Gallons
Long Bed: 34 Gallons
Max Engine Speed:3,250 RPM
Horsepower:365 horsepower
Torque:660 lb/ft of torque
Emissions EquipmentDiesel Particulate Filter
Diesel Oxidation Catalyst
Exhaust Gas Recirculation

2008-2010 Chevy HD & GMC HD Diesel Towing Capacity

LMM Duramax Towing specifications vary according to year, cab configuration, and more. If you have a rear wheel drive truck your tow capacity will be slightly higher. Dually models will also have much better overall towing capacity. Maximum conventional tow capacity for the 6.6L LMM Duramax is 13,000 lbs. When equipped with a properly equipped dually, the LMM is capable of towing 16,700 lbs with a fifth-wheel hitch. For detailed LMM Duramax specifications, visit our Duramax tow capacity page.

Receiver Size2″

Want More Duramax Information?

Check out some of the other Duramax trucks like the LML, LBZ, LB7 or LLY Duramax.

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