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 2 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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AT4 · 4WD 1GT19PE7-L6.6L 8-cyl, Four-wheel drive. 24 built.
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Denali · 4WD 1GT49RE7-L6.6L 8-cyl, Four-wheel drive. 820 built.
$32,000 great deal $46,995 typical $57,357 top of market -
Elevation · 4WD 1GTU9CET-L3L 6-cyl, Four-wheel drive. 392 built.
$28,298 great deal $31,830 typical $37,980 top of market -
SLE · 4WD 1GTR9BEK-L2.7L 4-cyl, Four-wheel drive. 259 built.
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Most common — 6% of 2020 Sierras
Denali · 4WD 1GT49WEY-L6.6L 8-cyl, Four-wheel drive. 5,853 built.
$38,995 great deal $54,340 typical $70,000 top of market -
SLE · 4WD 1GT39ME7-L6.6L 8-cyl, Four-wheel drive. 27 built.
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Fleet/Base · 4WD 1GT59LE7-L6.6L 8-cyl, Four-wheel drive. 139 built.
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AT4 · 4WD 1GTU9EET-L3L 6-cyl, Four-wheel drive. 1,059 built.
$26,050 great deal $33,999 typical $44,398 top of market -
Elevation 3GTP8CED-L
5.3L 8-cyl. 1,072 built.
$23,480 great deal $29,304 typical $40,508 top of market -
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SLT · 4WD 3GTU9DET-L
3L 6-cyl, Four-wheel drive. 2,014 built.
$22,800 great deal $32,950 typical $43,912 top of market -
Fleet/Base · 4WD 1GT39LE7-L
6.6L 8-cyl, Four-wheel drive. 112 built.
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Elevation · 4WD 1GTR9CED-L
5.3L 8-cyl, Four-wheel drive. 1,297 built.
$21,621 great deal $28,997 typical $37,170 top of market -
Elevation · 4WD 1GTP9CEK-L
2.7L 4-cyl, Four-wheel drive. 203 built.
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Fleet/Base · 4WD 1GT29LE7-L
6.6L 8-cyl, Four-wheel drive. 36 built.
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SLE · 4WD 1GTP9BEK-L
2.7L 4-cyl, Four-wheel drive. 92 built.
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SLT · 4WD 1GT49NEY-L
6.6L 8-cyl, Four-wheel drive. 1,462 built.
$32,900 great deal $48,094 typical $55,175 top of market -
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SLT · 4WD 1GTU9DED-L
5.3L 8-cyl, Four-wheel drive. 2,070 built.
$21,154 great deal $34,900 typical $45,990 top of market -
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What actually differs
| Denali · 4WD | SLT · 4WD 1GTU9DED-L | SLT · 4WD 3GTU9DET-L | SLT · 4WD 1GT49NEY-L | |
|---|---|---|---|---|
| Engine | 6.6L 8-cyl | 5.3L 8-cyl | 3L 6-cyl | 6.6L 8-cyl |
| Fuel | Diesel | Gasoline | Diesel | Diesel |
| Typical price today | $54,340 | $34,900 | $32,950 | $48,094 |
| For sale right now | 133 | 75 | 77 | 22 |
| Vehicles built | 5,853 | 2,070 | 2,014 | 1,462 |
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 1GTP8AEF-L means
- 1GT
- the World Manufacturer Identifier GMC registered — assembled in the United States
- P8AEF
- 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
- L
- in position 10 — model year 2020
- 9, 11–17
- differ on every car: check digit, plant code and the serial number
22 rare configurations — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.
- Fleet/Base 6.6L 8cyl Pickup 1GT38PEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD38PE7-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD38PEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD48PEY-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT48LEY-L Fewer than 20 known vehicles
- 6.2L 8cyl Pickup 1GTU99EL-L Fewer than 20 known vehicles
- SLE 6.6L 8cyl Pickup 1GT39MEY-L Fewer than 20 known vehicles
- SLT 3L 6cyl Pickup 1GTV9DET-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT48PE7-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT59SE7-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD39LE7-L Fewer than 20 known vehicles
- SLE 6.6L 8cyl Pickup 1GT48ME7-L Fewer than 20 known vehicles
- Elevation 3L 6cyl Pickup 1GTR8CET-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Incomplete 1GD48NE7-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD49LEY-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Pickup 1GT49NEY-C Fewer than 20 known vehicles
- Elevation 5.3L 8cyl Pickup 1GTU8CED-L Fewer than 20 known vehicles
- SLT 6.6L 8cyl Pickup 1GT29NE7-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD49LE7-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD59LE7-L Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete 1GD39SE7-L Fewer than 20 known vehicles
- AT4 6.2L 8cyl Pickup 1GTR9EEL-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.