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

182 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 1 of 4.

  • 65 main configurations
  • 95,140 vehicles built
  • 2,198 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 1GT12UEY-J SLT · 4WD 1GT12TEY-J Denali · 4WD 1GT42YEY-J SLT · 4WD 3GTU2NER-J
Engine 6.6L 8-cyl 6.6L 8-cyl 6.6L 8-cyl 5.3L 8-cyl
Fuel Diesel Diesel Diesel Gasoline
Typical price today $44,695 $38,790 $41,500 $28,199
For sale right now 128 63 64 49
Vehicles built 7,185 3,352 3,248 1,305
Same on every 2018 Sierra
  • Drivetrain Four-wheel drive
  • Body Pickup
  • Doors 4-door

What people actually pay

3,124 price observations · updated Aug 30, 2026
Denali · 4WD 1GT12UEY-J
$44,695
SLT · 4WD 1GT12TEY-J
$38,790
Denali · 4WD 1GT42YEY-J
$41,500
SLT · 4WD 3GTU2NER-J
$28,199
$15,520 $28,419 $41,319 $54,218 $67,117
Price trend

Median up $3,027 over the last 6 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 $15,997 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 1GTR1MEH-J means

1GT R1MEH · J
1GT
the World Manufacturer Identifier GMC registered — assembled in the United States
R1MEH
together encode the Sierra line — Pickup, 4.3L 6cyl — 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
31 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 →