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FinalBid / Copart + IAAI

2018 GMC Sierra 3500HD auction results: final bids and sale history

FinalBid holds 65 completed Copart and IAAI auctions for 2018 GMC Sierra 3500HD. Across 62 recorded USD final bids, the median sold price is $10,850. Most of those cars were sold with front end. Half of the 45 verified odometer readings sit above 134,557 mi. The oldest auction in the archive closed in Jan 31, 2024, the newest in Sep 14, 2026. Auction results for the 2018 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 2018 GMC Sierra 3500HD belongs in the sold-price range rather than guessing at an average.

Final bid VIN Copart IAAI

Auction results at a glance

Auctions on record
65
Final bids recorded
62
Median final bid from 62 auctions
$10,850
Average final bid from 62 auctions
$11,358
Where most final bids land
$6,950 – $14,975
Lowest / highest final bid
$25 / $27,000
Median odometer from 45 auctions
134,557 mi
Sold with keys
89%
Copart / IAAI
97% / 3%
Auction dates
Jan 31, 2024 – Sep 14, 2026

Damage recorded at sale

  • Front end 42%
  • Side 14%
  • Rear end 8%

Sierra 3500HD years

2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 1995 1993

GMC models

2500 Pickups 3500 Pickups Acadia Caballero Canyon Denali Envoy HUMMER EV HUMMER EV Pickup Jimmy Rally S15 4WD Safari Safari Cargo Savana Savana Cargo Savana Commercial Sierra 1500 Sierra 1500HD Sierra 1500HD Classic Sierra 2500 Sierra 2500HD Sierra 3500 Sierra 3500HD Sierra Denali Sierra EV Sonoma Suburban Terrain Van Vandura Yukon Yukon Denali Yukon XL

Auction archive FAQ

How much auction history is there for 2018 GMC Sierra 3500HD?

65 completed Copart and IAAI auctions, with sale dates between Jan 31, 2024 and Sep 14, 2026.

What is the average final bid for 2018 GMC Sierra 3500HD at auction?

Across 62 recorded USD sales the median final bid is $10,850, with the average pulled to $11,358 by the outliers at either end.

What damage do most 2018 GMC Sierra 3500HD auction lots carry?

front end leads, on 42% of the auctions — worth knowing before you read the low end of the sold-price range.

How many miles do 2018 GMC Sierra 3500HD cars have when sold at auction?

Half of the 45 verified odometer readings sit above 134,557 mi and half below it.

How much does a 2018 GMC Sierra 3500HD sell for at auction?

The auction results listed here are the answer — every 2018 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 2018 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.

Full vehicle history report

Check any 2018 GMC Sierra 3500HD before you buy

Reported accidents, odometer rollbacks, title brands and past owners — get the full history report for any VIN.

See a sample report first →

VIN patterns

1GT42YEY#JF###### · 50 1GT42VCY#JF###### · 6 1GT42XCY#JF###### · 5 1GT02VEG#JZ###### · 3 1GT32VCY#JZ###### · 1