2006 GMC Sierra 2500HD Overview

Sierra 2500HD

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4 Dr Crew Cab 4WD LB
4 Dr Crew Cab 4WD SB
1 national listing
4 Dr Crew Cab LB
4 Dr Crew Cab SB
1 national listing
SL1 2 Dr Regular Cab 4WD LB
2 national listings
SL1 2 Dr Regular Cab LB
Avg. Price: $13,764
SL1 4 Dr Extended Cab 4WD LB
SL1 4 Dr Extended Cab 4WD SB
1 national listing
Avg. Price: $19,909
SL1 4 Dr Extended Cab LB
1 national listing
SL1 4 Dr Extended Cab SB
SL1 4dr Crew Cab 4WD SB
Show 39 more trims

GMC Sierra 2500HD Experts

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Average User Score

4.45 stars

Based on 8 reviews

Yea by Scott
 — great.... it is like a rock..... gives you the ride of your life.... can bot ask for anything better than this excellent truck...... great truck other than the freaking tail gates that gm has to re-de... Read More
Fantastic by Petersonkd
 — Quiet soft ride on rough back country roads, with decent handling and fantastic towing capability.. Also very quiet on the rough freeway lanes.. Bose stereo very good,heated seats very good for long t... Read More
Great For Hauling... Everything! by Aaron
 — 6.6L Duramax LBZ - 360hp/650lb-ft. Allison 6spd auto. 6 pack CD. Full trailering package - 12,000lb capacity. Comfortable, quiet cab. The big D-max engine walks all over supercharged Harley Davi... Read More

2006 GMC Sierra 2500HD Overview

Overall User Score

4.4 out of 5 stars4.4 out of 5 stars4.4 out of 5 stars4.4 out of 5 stars4.4 out of 5 stars4.45

Based on 8 reviews

2006 GMC Sierra 2500HD

As if it needed more power, the 2006 GMC Sierra 2500 boosts its 6.6-liter, turbodiesel Duramax V8 to 360-hp and 650 lb-ft of torque, putting it well above the 8.1-liter, 340-hp V8 that gets 455 lb-ft of torque.  Both engines come with either a 6-speed manual or a new 6-speed Allison 1000 automatic that is both quieter and puts out less emissions.  The standard engine remains a 6.0-liter, 300-hp V8 matched to either a standard 5-speed manual or 4-speed automatic.  The 3/4-ton pickup comes in either rear-wheel or part-time four-wheel drive in Regular (one split-folding front bench), Extended, or Crew Cabs (two rows of seats, with split-folding rear seats).  An 8-foot bed accompanies the Regular Cab, while a 6.5 or 8-foot bed comes with the Extended and Crew Cabs.

Also new this year are the trim designations, which now number five.  The Work Truck is minimally equipped, while the new SL1 adds cruise control and a CD player.  The SLE1 and SLE2 add power features, power front seats, and foglights, and the upscale SLT combines work function with family-friendly comfort by adding heated leather seats, memory settings, upgraded audio system, and retractable mirrors, which are new this year.  All trims feature ABS brakes, 16-inch wheels, automatic headlights, and dual front airbags, and the 2006 GMC Sierra 2500HD earns three stars in crash ratings.  

Towing capability is what this truck is known for, and when equipped with either the Duramax or the 8.1 V8, this pickup can tow up to 12,000 pounds with minimal effort.  The bed features plenty of tie-downs, and a cargo cover and bedliner can be added.  The new Allison automatic, in combination with the beefed up Duramax is a big hit with owners, who are awed by its hauling performance.  Other pluses include a surprisingly quiet and smooth ride, a roomy interior, and acceleration.  There are complaints about the bland interior materials and the wide turning radius.


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Picture of 2006 GMC Sierra 2500HD SLE1 4 Dr Extended Cab 4WD LB
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Sierra 2500HD
Looking for a Used Sierra 2500HD in your area?
CarGurus has 15,089 nationwide Sierra 2500HD listings starting at $3,991.

GMC Sierra 2500HD Questions


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Gmc Code Repair

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278 views with 2 answers (last answer 2 years ago)