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2006 GMC Sierra 2500 HD SLT, front three-quarter view, paint 1 of 8

Paint 1 of 8

Render shows the 2008 model

2006 GMC Sierra 2500 HD SLT

Truck (Extended Cab) · 300 hp

Sticker from
$32,235Factory MSRP, base configuration

Market

Too few listings to publish a market price.

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Which Sierra 2500 HD is right for you?

Five trims, $21,825 to $32,235. Tap one to open it.

$21,825−$10,410Work Truck300 hp$23,915−$8,320SL1300 hp$24,985−$7,250SLE1300 hp$30,305−$1,930SLE2300 hp$32,235This trimSLT300 hp

Bar heights follow the price. The widest step is $5,320, from SLE1 to SLE2.

The numbers.

Eight configurations: rear-wheel or four-wheel drive, 4-speed automatic.

300hp6.0L eight-cylinder
360lb-ftTorque
RWD / 4WD4-speed automatic
5Seats
5,398–6,037 lbsCurb weight
9,200 lbsGVWR
12,000 lbsMax towing
3,163–3,802 lbsMax payload

Paint and trim.

3 interiors

  • Neutral
  • Dark Pewter
  • Pewter

All leather.

26 factory paints

  • Yellow
  • Indigo Blue
  • Woodland Green
  • Orange
  • Dark Toreador Red
  • Tangier Orange
  • Polo Green Metallic
  • Onyx Black
  • Fire Red
  • Steel Gray Metallic
  • Green - Low Gloss
  • Sport Red Metallic
  • Green
  • Wheatland Yellow
  • Stealth Gray Metallic
  • Light Autumnwood Metallic
  • Silver Birch Metallic
  • Gray Metallic
  • Sand Beige Metallic
  • Blue
  • Summit White
  • Tan - Low Gloss
  • Deep Blue Metallic
  • Pewter
  • Blue Metallic
  • Doeskin Tan

8 of the 26 are shown on the car at the top.

Safety and recalls

No recall campaigns on file.

Recalls are settled per car, not per model. Check the one you are buying.

Overall—Not rated
Frontal—Not rated
Side—Not rated
Rollover—Not rated

NHTSA has not published ratings for the 2006 Sierra 2500 HD. A model year is often unrated for a year or more after it goes on sale.

NHTSA NCAP · checked Oct 2026

Cover this Sierra 2500 HD for longer.

These plans are vehicle service contracts from third-party providers.

See extended plan pricesLive prices for this car. They depend on its age and mileage.See prices

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Other years of the Sierra 2500 HD SLT.

2007 Sierra 2500 HD SLT

$34,265$2,030 more9 colors · starting MSRP

2005 Sierra 2500 HD SLT

$35,190$2,955 more9 colors · starting MSRP

2008 Sierra 2500 HD SLT

$35,070$2,835 more10 colors · starting MSRP

Pictures show this year's car in another paint. Starting MSRP is before destination, taxes and dealer fees.