2018 GMC C6: trims, real prices & how to pick yours

2 builds left the factory as a 2018 C6, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 1 main configuration sell for $13,500–$27,590 today.

  • 1 main configurations
  • 2,330 vehicles built
  • 36 for sale right now
  • $13,500–$27,590 typical price range

Which C6 is yours?

Enter a VIN — the 17 characters on the windshield or the title — and we’ll match it to its exact factory configuration, typical price and equipment.

Works with any VIN — a different year or model takes you straight to its own page.

Pick your C6

What people actually pay

46 price observations · updated Sep 6, 2026
Medium Conventional - 97.5 IN. BBC · 4WD
$22,625
$13,095 $16,926 $20,757 $24,587 $28,418

Safety, in plain English

What 1GTG6DEN-J means

1GT G6DEN · J
1GT
the World Manufacturer Identifier GMC registered — assembled in the United States
G6DEN
together encode the C6 line — Truck-Tractor, 5.8L 6cyl, Four-wheel drive — as GMC filed it, these five characters are read as one block, not letter by letter
J
in position 10 — model year 2018
9, 11–17
differ on every car: check digit, plant code and the serial number
Real VINs from this run 1GTG6DEN 7J1132113 1GTG6DEN 1J1231509 1GTG6DEN 3J1129712
1 rare configuration — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.

Already looking at a specific C6?

Paste its VIN — we’ll open that exact car’s page: its configuration, market position and every listing we’ve tracked.

2018 GMC C6 prices →