This 1999 GMC Sierra K3500 SLT 4×4 dually sold for $20,500, and that's strong money for a truck with only 50k miles on the clock.

This rig is a solid choice for anyone in the market for a workhorse that still has some style. The 7.4-liter Vortec V8 is a beast, delivering both power and reliability. Paired with a four-speed automatic transmission, it’s ready for heavy hauling or weekend adventures. The Pewter Metallic finish gives it a sleek appearance, while the gray leather interior adds a touch of comfort. Features like cab clearance lights and a power-adjustable driver's seat make it more than just a utility vehicle. This combination of rugged capability and creature comforts appeals to buyers looking for a versatile truck.

The bidding on this Sierra was quite competitive, with 34 bids before it finally sold. That shows there was genuine interest, and the price reflects that enthusiasm. Given the low mileage and desirable features, $20,500 feels like a fair price in today’s market. Trucks like this, especially with such low usage, often command premiums.

One community comment stood out: "The low mileage is a big selling point here." It’s true—the 50k miles really elevate the value. Buyers are always on the lookout for trucks that have been lightly used and well cared for, as they tend to have fewer issues down the line.

If you're hunting for a similar truck, keep an eye on mileage and service history. Low-mileage vehicles like this one can sometimes hide wear and tear, so ask for maintenance records. It's also wise to check for any signs of rust or wear, especially on older models. This Sierra's condition helped it fetch a higher price, so make sure you consider that when you're in the market.

See all GMC Sierra (GMT400 1988-2002) listings on [Friday's Watchlist](https://fridayswatchlist.com/search?make=GMC&model=Sierra%20(GMT400%201988-2002)).