2020 GMC Sierra: trims, real prices & how to pick yours
239 builds left the factory as a 2020 Sierra, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 129 main configurations sell for $15,485–$70,498 today. Page 3 of 5.
- 129 main configurations
- 103,965 vehicles built
- 2,965 for sale right now
- $15,485–$70,498 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
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SLE · 4WD 1GTU9BED-L5.3L 8-cyl, Four-wheel drive. 1,773 built.
$17,000 great deal $28,989 typical $36,899 top of market -
SLE · 4WD 1GT49ME7-L6.6L 8-cyl, Four-wheel drive. 607 built.
$33,441 great deal $40,064 typical $44,443 top of market -
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Most common — 4% of 2020 Sierras
AT4 · 4WD 1GT49PEY-L6.6L 8-cyl, Four-wheel drive. 3,821 built.
$35,851 great deal $49,087 typical $60,985 top of market -
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SLE · 4WD 1GT19MEY-L6.6L 8-cyl, Four-wheel drive. 90 built.
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Fleet/Base · 4WD 3GTN9AEF-L
5.3L 8-cyl, Four-wheel drive. 277 built.
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AT4 · 4WD 1GT49VE7-L
6.6L 8-cyl, Four-wheel drive. 46 built.
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SLT · 4WD 1GTR9DED-L
5.3L 8-cyl, Four-wheel drive. 38 built.
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SLT · 4WD 3GTU9DEL-L
6.2L 8-cyl, Four-wheel drive. 2,392 built.
$21,995 great deal $35,689 typical $46,191 top of market -
SLT · 4WD 1GTU9DEL-L
6.2L 8-cyl, Four-wheel drive. 681 built.
$23,852 great deal $38,996 typical $49,899 top of market -
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Fleet/Base · 4WD 1GTR9AEF-L
5.3L 8-cyl, Four-wheel drive. 371 built.
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SLT · 4WD 1GT49NE7-L
6.6L 8-cyl, Four-wheel drive. 885 built.
$27,780 great deal $40,170 typical $52,990 top of market -
Fleet/Base · 4WD 1GT19LEY-L
6.6L 8-cyl, Four-wheel drive. 42 built.
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Fleet/Base · 4WD 1GTP9AEK-L
2.7L 4-cyl, Four-wheel drive. 219 built.
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Denali · 4WD 1GT49WE7-L
6.6L 8-cyl, Four-wheel drive. 114 built.
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SLT · 4WD 1GT19NE7-L
6.6L 8-cyl, Four-wheel drive. 34 built.
What actually differs
| AT4 · 4WD | SLT · 4WD 3GTU9DEL-L | SLE · 4WD | SLT · 4WD 1GT49NE7-L | |
|---|---|---|---|---|
| Engine | 6.6L 8-cyl | 6.2L 8-cyl | 5.3L 8-cyl | 6.6L 8-cyl |
| Fuel | Diesel | Gasoline | Gasoline | Gasoline |
| Typical price today | $49,087 | $35,689 | $28,989 | $40,170 |
| For sale right now | 74 | 98 | 35 | 23 |
| Vehicles built | 3,821 | 2,392 | 1,773 | 885 |
Same on every 2020 Sierra
- Drivetrain Four-wheel drive
- Body Pickup
- Seats 6
- Doors 4-door
What people actually pay
4,561 price observations · updated Aug 30, 2026Safety, in plain English
- ✓ Watches your blind spot (optional)
What 1GTR8AEK-L means
- 1GT
- the World Manufacturer Identifier GMC registered — assembled in the United States
- R8AEK
- together encode the Sierra line — Pickup, 2.7L 4cyl — as GMC filed it, these five characters are read as one block, not letter by letter
- L
- in position 10 — model year 2020
- 9, 11–17
- differ on every car: check digit, plant code and the serial number
21 rare configurations — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.
- SLE 5.3L 8cyl Pickup 1GT49BED-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT38PE7-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Pickup 1GT48NE7-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Pickup 1GT48NEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD49SEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD39SEY-L Fewer than 20 known vehicles
- SLE 6.6L 8cyl Incomplete 1GD59TEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT59SEY-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Incomplete 1GD49NEY-L Fewer than 20 known vehicles
- SLE 6.6L 8cyl Incomplete 1GD39TE7-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Incomplete 1GD49UEY-L Fewer than 20 known vehicles
- Elevation 2.7L 4cyl Pickup 3GTP9CCK-L Fewer than 20 known vehicles
- 5.3L 8cyl Pickup 3GTN99EF-L Fewer than 20 known vehicles
- Elevation Pickup 3GTU9CDB-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Pickup 1GT18NEY-L Fewer than 20 known vehicles
- SLE 6.6L 8cyl Incomplete 1GD39TEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT58LEY-L Fewer than 20 known vehicles
- Fleet/Base 5.3L 8cyl Incomplete 3GDN9AEF-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD29LEY-L Fewer than 20 known vehicles
- SLE 6.6L 8cyl Pickup 1GT59MEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD19LEY-L Fewer than 20 known vehicles
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.