2021 GMC Sierra: trims, real prices & how to pick yours
250 builds left the factory as a 2021 Sierra, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 136 main configurations sell for $16,500–$69,999 today. Page 3 of 5.
- 136 main configurations
- 159,925 vehicles built
- 4,338 for sale right now
- $16,500–$69,999 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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SLT · 4WD 1GT49UEY-M6.6L 8-cyl, Four-wheel drive. 820 built.
$43,995 great deal $51,000 typical $62,588 top of market -
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Fleet/Base · 4WD 1GTP9AEH-M4.3L 6-cyl, Four-wheel drive. 88 built.
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SLT · 4WD 1GT49NEY-M6.6L 8-cyl, Four-wheel drive. 1,712 built.
$36,989 great deal $50,156 typical $60,735 top of market -
SLE · 4WD 1GTP9BEK-M2.7L 4-cyl, Four-wheel drive. 130 built.
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Most common — 9% of 2021 Sierras
SLT · 4WD 3GTU9DED-M5.3L 8-cyl, Four-wheel drive. 13,857 built.
$24,999 great deal $35,865 typical $44,703 top of market -
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Denali · 4WD 3GTU9FEL-M6.2L 8-cyl, Four-wheel drive. 6,701 built.
$29,990 great deal $39,699 typical $48,955 top of market -
AT4 · 4WD 1GT49PE7-M6.6L 8-cyl, Four-wheel drive. 959 built.
$35,256 great deal $49,998 typical $55,976 top of market -
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Fleet/Base · 4WD 1GTR9AEK-M
2.7L 4-cyl, Four-wheel drive. 142 built.
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AT4 · 4WD 1GTP9EEL-M
6.2L 8-cyl, Four-wheel drive. 6,104 built.
$29,900 great deal $38,771 typical $47,282 top of market -
SLE · 4WD 3GTP9BEK-M
2.7L 4-cyl, Four-wheel drive. 216 built.
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Elevation 1GTR8CEK-M
2.7L 4-cyl. 568 built.
$17,480 great deal $27,995 typical $32,888 top of market -
SLE · 4WD 1GT19MEY-M
6.6L 8-cyl, Four-wheel drive. 215 built.
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SLE · 4WD 1GT39TEY-M
6.6L 8-cyl, Four-wheel drive. 35 built.
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SLE · 4WD 1GT19ME7-M
6.6L 8-cyl, Four-wheel drive. 268 built.
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SLE · 4WD 1GTR9BED-M
5.3L 8-cyl, Four-wheel drive. 1,417 built.
$24,088 great deal $30,870 typical $36,300 top of market -
SLE · 4WD 1GTU9BET-M
3L 6-cyl, Four-wheel drive. 472 built.
$26,348 great deal $31,299 typical $33,995 top of market -
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Fleet/Base · 4WD 1GT49SE7-M
6.6L 8-cyl, Four-wheel drive. 209 built.
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Fleet/Base · 4WD 1GTP9AEK-M
2.7L 4-cyl, Four-wheel drive. 91 built.
What actually differs
| SLT · 4WD 3GTU9DED-M | Denali · 4WD | AT4 · 4WD | SLT · 4WD 1GT49NEY-M | |
|---|---|---|---|---|
| Engine | 5.3L 8-cyl | 6.2L 8-cyl | 6.2L 8-cyl | 6.6L 8-cyl |
| Fuel | Gasoline | Gasoline | Gasoline | Diesel |
| Typical price today | $35,865 | $39,699 | $38,771 | $50,156 |
| For sale right now | 382 | 178 | 175 | 25 |
| Vehicles built | 13,857 | 6,701 | 6,104 | 1,712 |
Same on every 2021 Sierra
- Drivetrain Four-wheel drive
- Body Pickup
- Doors 4-door
What people actually pay
6,192 price observations · updated Aug 30, 2026Safety, in plain English
What 3GTP8AEF-M means
- 3GT
- the World Manufacturer Identifier GMC registered — assembled in Mexico
- 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
- M
- in position 10 — model year 2021
- 9, 11–17
- differ on every car: check digit, plant code and the serial number
24 rare configurations — mostly fleet, export or irregular VIN patterns. Fewer than 20 known vehicles each.
- Denali 5.3L 8cyl Pickup 3GTP8FED-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT38LE7-M Fewer than 20 known vehicles
- SLE 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD28ME7-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT38LEY-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD48LEY-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD48LE7-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD59SE7-M Fewer than 20 known vehicles
- SLE 5.3L 8cyl Pickup 3GTR9BED-M Fewer than 20 known vehicles
- SLT 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD59NEY-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete - Chassis CAB (Single CAB) 1GD38PEY-M Fewer than 20 known vehicles
- SLT Crew CAB 4WD 001GTU9D-L Fewer than 20 known vehicles
- AT4 3L 6cyl Pickup 3GT49EET-M Fewer than 20 known vehicles
- Base configuration 03GTP9EE-2 Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD59LEY-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT58PE7-M Fewer than 20 known vehicles
- Denali Pickup 3GTU9FE6-M Fewer than 20 known vehicles
- SLE 6.6L 8cyl Pickup 1GT48ME7-M Fewer than 20 known vehicles
- SLE 6.6L 8cyl Pickup 1GT58ME7-M Fewer than 20 known vehicles
- Fleet/Base 5.3L 8cyl Incomplete - Chassis CAB (Single CAB) 3GDN8AEF-M Fewer than 20 known vehicles
- Elevation 5.3L 8cyl Pickup 3GT49CED-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Pickup 1GT18LE7-M Fewer than 20 known vehicles
- Fleet/Base 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD49SE7-M Fewer than 20 known vehicles
- SLT 6.6L 8cyl Pickup 1GT58NEY-M Fewer than 20 known vehicles
- SLE 6.6L 8cyl Incomplete - Chassis CAB (Double CAB) 1GD59ME7-M 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.