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

183 builds left the factory as a 2018 Sierra, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 65 main configurations sell for $8,999–$65,162 today. Page 4 of 4.

  • 65 main configurations
  • 95,403 vehicles built
  • 1,935 for sale right now
  • $8,999–$65,162 typical price range

Which Sierra 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 Sierra

What actually differs

Denali · 4WD 3GTU2PEJ-J SLE · 4WD SLT · 4WD Denali · 4WD 1GT12UEG-J
Engine 6.2L 8-cyl 6L 8-cyl 6.6L 8-cyl 6L 8-cyl
Fuel Gasoline Gasoline Diesel Gasoline
Typical price today $30,788 $30,233 $45,148 $37,015
For sale right now 227 13 6 8
Vehicles built 11,539 688 567 556
Same on every 2018 Sierra
  • Drivetrain Four-wheel drive
  • Body Pickup
  • Doors 4-door

What people actually pay

2,032 price observations · updated Sep 6, 2026
Denali · 4WD
$30,788
$17,484 $23,412 $29,340 $35,267 $41,195
Price trend

Median up $3,005 over the last 7 months.

2018 Sierra price history →
Will it hold value?

A Sierra typically keeps about 57% of its price over 5 years — a 5-year-old one runs about $15,995 today.

Sierra depreciation by year →
Cost to run

18/24 mpg city/highway. Roughly $2,330/yr on fuel at 15,000 miles.

EPA estimate for the 2018 Sierra

Safety, in plain English

What 1GTR1MEC-J means

1GT R1MEC · J
1GT
the World Manufacturer Identifier GMC registered — assembled in the United States
R1MEC
together encode the Sierra line — Pickup, 5.3L 8cyl — 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
23 rare configurations — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.

Already looking at a specific Sierra?

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

2018 GMC Sierra prices →