Chevrolet launched the 3rd generation Silverado HD for the 2015 model year, representing a major redesign over its predecessor. While it shared aesthetics with the contemporary 1500, the HD models were built on a much stronger, fully-boxed frame. Powertrain choices were a 6.0L Vortec gasoline V8 or the venerable 6.6L Duramax diesel V8, backed by the Allison 1000 transmission. The key update arrived in 2017 with the introduction of the new L5P Duramax, which boosted output to 445 horsepower and an immense 910 lb-ft of torque, making it a benchmark for heavy-duty trucks of its era.
These trucks aren't collected in the traditional sense; their value is firmly rooted in capability and condition. The 2017 and newer models with the L5P Duramax are particularly desirable for their power and reliability, especially in premium trims like the High Country, which added luxury appointments to a work-ready platform. For many buyers, the squared-off, classic truck styling is a major plus compared to the more aggressive designs of subsequent generations, giving it lasting appeal.
The market for the 3rd gen Silverado HD is broad, reflecting its dual life as a commercial workhorse and a personal-use tow vehicle. An average sale price near $28,000 demonstrates that even used examples retain significant value. The highest prices are paid for low-mileage, rust-free Duramax models, while high-mileage, gasoline-powered work trucks anchor the lower end of the market.
Buying Tips
- The LML Duramax (2015-2016) can suffer from fuel injector pump (CP4) failure; the 2017+ L5P engine is a more robust design. Check maintenance records for fuel system service.
- All diesel models use a Diesel Exhaust Fluid (DEF) system that can be troublesome. Check for any related dash lights or stored fault codes, as repairs can be expensive.
- Frame rust is a major concern, especially on trucks from the rust belt. Thoroughly inspect the frame rails, cab corners, rocker panels, and bed supports.
- The Allison 1000 transmission is stout, but check for smooth shifting and clean fluid. A history of heavy towing can accelerate wear.
- Look for signs of abuse or extreme modification. Aftermarket engine tuners can stress the powertrain, and evidence of a fifth-wheel or gooseneck hitch indicates a life of heavy hauling.
Prices range from approximately $5,100 for high-mileage work trucks to over $49,000 for low-mileage, late-model Duramax examples.
396 Chevrolet Silverado Heavy Duty 3rd Gen vehicles have been tracked across auctions and listings on Hypercars, with 46 currently live.
Data sourced from Bring a Trailer, Cars & Bids, eBay Motors, PCarMarket, and Collecting Cars. Updated daily.
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