GMC - Sierra 2500HD (2008)

Looking for the latest GMC Sierra 2500HD price trends? The 2008 model remains a staple on job sites and in family fleets alike, but its value fluctuates with mileage, condition, and trim level. See here how the GMC Sierra 2500HD 2008 price compares across markets and explore factors that influence a used GMC Sierra 2500HD price.

• Engine: 6.6L V8 Duramax Diesel (2,466 hp – 3,600 Nm)
• Transmission: 6‑speed automatic, Troller® heavy‑duty gearbox
• Fuel Type: Diesel, EPA rating 8–10 mpg combined
• Drivetrain: 4WD or RWD (dependent on trim)
• Body Style: 4‑ton truck with 6‑bay bed options
• Dimensions: Length 218–250 in; Width 77 in; Height 86–93 in
• Payload: Up to 2,400 lbs, depending on configuration
• Towing Capacity: 13,200–17,000 lbs with optional towing package
• Safety: Standard heavy‑duty airbags, ABS, E‑BD and optional airbags for crew cab
• Technology: 2008 models shipped with standard 5” display, optional navigation, and in‑cab hydraulic lift

When you ask “what is a 2008 GMC Sierra 2500HD worth?” the answer hinges on mileage, service history, ownership count, and optional packages. Sources gathered from dealer listings, NADA guides, and major used‑car marketplaces indicate that, on average, a 2008 diesel Sierra sits between $10,000–$18,000, but final price is highly variable.

Depreciation Insights for the GMC Sierra 2500HD

• Typical annual loss: GMC Sierra 2500HD depreciation averages 15–20% of list price in the first year, then slows to about 10% annually for the next two years.
• By the third year, most vehicles have shed roughly 40–45% of their purchase price.
• After five years, a well‑maintained Sierra may still retain 25–30% of its original value.
• Factors that accelerate depreciation: heavy duty towing, high mileage (>120k), rust in frame or cab, and diesel‑fuel boost in rates during fuel crisis.
• Conversely, timely service records, manufacturer warranty coverage, and few accidents can reduce depreciation impact.

These estimates align with the typical trajectory of heavy‑duty trucks, where the initial cost is heavily amortized as the vehicle proves its reliability to operators.

Comparison Context

• Compared to similar 2008 heavy‑duty models like the Ford F‑250 or Ram 2500, the Sierra’s diesel engine offers higher torque and better fuel economy, which can command a premium in used markets.
• However, the Sierra’s heavier curb and freight weight can increase inspection times during resale, marginally lowering price compared to its gasoline counterparts.
• When sorting online listings, buyers often pay a 5–8% premium for vehicles with the optional same‑day lift kit or upgraded safety package.

Market Position Statement

The 2008 GMC Sierra 2500HD remains popular in the commercial truck segment, especially among small‑to‑medium enterprise fleets, construction crews, and long‑haul haulers who value the durability and torque of the Duramax engine. Its reputation for reliability keeps resale interest steady, making it a top choice for operators looking for a blend of workhorse capability and cost‑effective ownership.

Want more precise numbers tailored to your location or condition? Check our up‑to‑date pricing database for GMC Sierra 2500HD