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FinalBid / Copart + IAAI

2025 GMC Sierra 3500HD auction results: final bids and sale history

FinalBid holds 46 completed Copart and IAAI auctions for 2025 GMC Sierra 3500HD. Across 44 recorded USD final bids, the median sold price is $38,750. Most of those cars were sold with front end. Half of the 33 verified odometer readings sit above 9,331 mi. The oldest auction in the archive closed in Jan 17, 2025, the newest in Oct 1, 2026. Auction results for the 2025 GMC Sierra 3500HD at Copart and IAAI. Each sold lot below shows the final bid together with the damage, odometer and title that explain it, so you can see where a particular 2025 GMC Sierra 3500HD belongs in the sold-price range rather than guessing at an average.

$37,750
Median final bid
$28,625–$47,313
Middle half
$54,050
Top 10% from
$61,000
Highest

Price index

Median final bid by month (line) and number of sales (bars), last 12 months.

$21,600 $33,670 $45,730 $57,800 Oct Nov Dec Feb Mar Apr May Jun Jul Sep Oct $55,500

Last 12 months · updated October 14, 2026

Auction archive FAQ

How much does a 2025 GMC Sierra 3500HD sell for at Copart and IAAI?

Over the last 12 months the median final bid for a 2025 GMC Sierra 3500HD was $37,750; half of the 30 sales went for $28,625 to $47,313.

How much does a 2025 GMC Sierra 3500HD sell for at auction?

The auction results listed here are the answer — every 2025 GMC Sierra 3500HD lot carries its own final bid. Read the range and place your car inside it instead of trusting one figure.

What pushes a 2025 GMC Sierra 3500HD final bid to the bottom of the range?

Water and fire losses, missing keys, deployed airbags and a branded title. Any two of those together usually explain a sold price that looks improbably low.

VIN history beyond the auction

Look past the final bid on any 2025 GMC Sierra 3500HD

Title brands, accident reports and odometer entries: the VIN history behind any auction lot.

Example VIN history →