Home>Blog>2007 GMC 2500HD Duramax Diesel Review: Built For Commercial
Vehicle Review

2007 GMC 2500HD Duramax Diesel Review: Built For Commercial

October 6, 20263 min readBy Kal

Legendary 6.6L Duramax diesel reliability, but minimal comfort features for long commutes. 2007 GMC 2500HD Duramax Diesel review from Silverstone Motors.

365 HP
Horsepower
9.5 seconds
0-100 km/h
4X4
Drivetrain
10.2 L/100km combined
Combined
660 lb-ft
Torque
4 / 5 ★
Safety

If you're weighing a 2007 GMC 2500HD Duramax Diesel, the short answer is yes — it earns a look for legendary 6.6L Duramax diesel reliability, and exceptional torque for towing. The honest trade-off: minimal comfort features for long commutes. This example sold for $19,995, showed 266,901 km and is rated an official 10.2 L/100km combined.

$19,995 SAFETY INCLUDED + TAX + LICENCING DURAMAX DIESEL 6.6 4WD- WELL SERVICED- CLEAN TITLE VISIT US AT: SILVERSTONE MOTORS 2365 DUNDAS STREET EAST LONDON ON N5V 1R4 226-700-4542 WE PROVIDE FULL DISCLOSURE ABOUT OUR VEHICLES – VEHICLES ARE SOLD SAFETIED WITH A MULTI-POINT SAFETY INSPECTION – EACH VEHICLE INCLUDES A FREE CARPROOF HISTORY REPORT – NO HIDDEN FEES – WE PROVIDE PEACE OF MIND 36 DAY COVERAGE ON ALL SAFETY RELATED ITEMS – PRESSURE FREE SHOPPING EXPERIENCE. FAMILY FRIENDLY ATMOSPHERE – WE OFFER ALL TYPES OF WARRANTIES

What to check before you buy

  • When shopping this trim, verify maintenance records and service history—diesel engines reward consistent upkeep. Check for trailer brake controller and transmission cooler installation if towing heavily. Inspect bed condition and undercarriage for rust or corrosion. The Duramax is known for longevity, so mileage matters less than maintenance. Consider fuel costs against your hauling needs—diesel typically offers better efficiency on highway work.

This 2007 GMC 2500HD DURAMAX DIESEL SIERRA 2500HD 6.6 DURMAX DIESEL WT EXTENDED CAB STD was sold by Silverstone Motors in London, Ontario. If you are looking at something similar, have a look at what is on the lot now — and if you want a straight answer about whether it is the right fit, just ask.

Specifications

Engine6.6 DURAMAX DIESEL
Drivetrain4X4
TransmissionAUTOMATIC
Fuel economy10.2 L/100km combined
Horsepower365 hp
Torque660 lb-ft
Mileage266,901 km
Safety rating4 / 5 (NHTSA)
Price when sold$19,995
Highlights

The 2007 GMC Sierra 2500HD WT with the 6.6L Duramax Diesel is built for serious work. This Work Truck trim strips away unnecessary amenities to focus on durability, payload capacity, and towing capability—perfect for contractors, fleet operators, and buyers who need maximum functionality. The extended cab provides extra seating without sacrificing bed length, while the legendary Duramax engine delivers torque-rich performance and respectable fuel economy for a heavy-duty diesel. This is a no-nonsense workhorse designed to earn its keep.

ENGINE
6.6L Duramax Diesel engine
FEATURE
Extended cab configuration
FEATURE
8-foot standard bed
Kal's Take: “I recommend this trim because it delivers genuine work-truck capability without premium pricing. You get the legendary Duramax diesel in a no-frills package that lets you invest in what matters—towing, payload, and reliability.”
Pros & Cons
Pros
Legendary 6.6L Duramax diesel reliability
Exceptional torque for towing and hauling
Spacious extended cab with practical bed
Lower fuel consumption than comparable gas trucks
Built for commercial and heavy-duty work
Strong resale value among work trucks
Cons
Minimal comfort features for long commutes
Diesel maintenance can be costly
Older technology by modern standards
Limited infotainment options
Final Verdict
  • 6.6L Duramax Diesel engine with 365 hp
  • Extended cab with standard seating for five
  • 8-foot bed with GVWR over 14,000 lbs
  • Maximum towing capacity exceeds 17,000 lbs
  • Work-focused trim with practical features only
  • Diesel efficiency ideal for long-haul work
  • Proven reliability from GMC's truck lineup

GMC trucks on the lot now

View all GMC →
2007 GMC SIERRA 2500HD WT 4X4 DURAMAX EXT CAB LONG BOX
Work Ready
2007
GMC SIERRA 2500HD WT 4X4 DURAMAX EXT CAB LONG BOX
$186/bi-wk$22,995
4X4
14.7 L/100km
154,950 KM
Auto
✔ No obligation · Takes 2 minutes · All credit welcome
2012 GMC SIERRA 1500 4X4 SLE REG CAB LONG BOX
Work Ready
2012
GMC SIERRA 1500 4X4 SLE REG CAB LONG BOX
$114/bi-wk$13,995
4X4
18.4 L/100km
190,856 KM
Auto
✔ No obligation · Takes 2 minutes · All credit welcome
2016 GMC SIERRA 1500 SLE 5.3 4WD Z71 PKG KODIAK SHORT BOX
Work Ready
2016
GMC SIERRA 1500 SLE 5.3 4WD Z71 PKG KODIAK SHORT BOX
$114/bi-wk$13,995
4WD
12.7 L/100km
301,243 KM
Auto
✔ No obligation · Takes 2 minutes · All credit welcome

More From Silverstone Motors

View All Blog Posts →