Truck Trend is the source for official specifications, payload, towing capacity, and other information that matters to real truck users. Check out the latest info for the 2009 GMC Sierra 2500HD Crew Cab with standard box, long box, 2WD & 4WD options. Read the complete specs on the Vortec 6.0L V-8 and Duramax 6.6L V-8 power plants.


2009 GMC Sierra 2500HD Crew Cab
Models: 2500HD crew cab, std box, 2WD & 4WD
2500HD crew cab, long box, 2WD & 4WD
Body style / driveline: 5-6-passenger crew cab, 3/4-ton; two- and four-wheel-drive heavy duty pickup
Construction: body on frame
EPA vehicle class: full-size truck
Manufacturing location: Pontiac, Mich.; Flint, Mich.
Engines
  Vortec 6.0L V-8 (LY6) Duramax 6.6L V-8 (LMM)
Type: 6.0L V-8 6.6L V-8
Displacement (cu in / cc): 364 / 5967 403 / 6599
Bore & stroke (in / mm): 4.00 x 3.62 / 101.6 x 92 4.06 x 3.9 / 103 x 99
Block material: cast iron cast iron
Cylinder head material: cast aluminum cast aluminum
Valvetrain: OHV OHV
Ignition system: coil-near-plug, platinum- tipped spark plugs, low-resistance spark plug wires compression, glow plug start aid; low-resistance spark plug wires
Fuel delivery: sequential fuel injection direct injection diesel with high pressure common rail
Compression ratio: 9.6:1 16.8:1
Horsepower (hp / kW @ rpm): 360 / 268 @ 5400* 365 / 272 @ 3200
Torque (lb-ft / Nm @ rpm): 380 / 515 @ 4200* 660 / 895 @ 1600
Recommended fuel: regular unleaded diesel
Maximum engine speed (rpm): 6000 3450
Emissions controls: three-way catalytic converter, positive crankcase ventilation, evaporative collection system turbocharged, intercooled, catalytic converter system; diesel particulate filter system with regeneration
Transmissions
  Hydra-Matic 6L90 Allison 1000
Type: six-speed automatic (w/ Vortec 6.0L) six-speed automatic (w/ Duramax 6.6L)
Gear ratios (:1):
First: 4.03 3.1
Second: 2.36 1.81
Third: 1.53 1.41
Fourth: 1.15 1
Fifth: 0.85 0.71
Sixth: 0.67 0.61
Reverse: 3.06 4.49
Final drive ratio (std. & avail.): Vortec 6.0L 3.73 or 4.10
Duramax 6.6L: 3.73