Used 2021 GMC Sierra 3500 Pickup engines & transmissions
2 engine options and 5 transmission options for the 2021 GMC Sierra 3500 Pickup, 7 in stock to buy online. Engine size: 6.6L. Transmissions: automatic. Drivetrain: 4X2 and 4X4. Units differ by engine code, so check the VIN code column against your VIN, or send us your VIN and we'll match it before anything ships.
2021 GMC Sierra 3500 Pickup engines
2 options · $4,660 – $9,849
| Engine | VIN code | Mileage | Price | Availability |
|---|---|---|---|---|
| (6.6L), Diesel , opt L5PTF-E000688 | Y (digit 8) | 59,000–94,000 mi | from $8,199 | In stock |
| (6.6L), Gasoline , opt L8TTF-E000687 | 7 (digit 8) | 10,000–104,000 mi | from $4,660 | In stock |
2021 GMC Sierra 3500 Pickup transmissions
5 options · $3,970 – $8,785
| Transmission | VIN code | Mileage | Price | Availability |
|---|---|---|---|---|
| (AT, 6.6L), Diesel, 4x2, ID OMCFTF-T009016 | By VIN | 26,000–86,000 mi | from $4,967 | In stock |
| (AT, 6.6L), Diesel, 4x4, ID OMEFTF-T009015 | By VIN | 46,620–104,000 mi | from $5,039 | In stock |
| (AT, 6.6L), Diesel, 4x4, ID OMKFTF-T009014 | By VIN | 26,000–98,000 mi | from $5,509 | In stock |
| (AT, 6.6L), Gasoline, 4x2TF-T009013 | By VIN | 13,000–55,000 mi | from $3,970 | In stock |
| (AT, 6.6L), Gasoline, 4x4TF-T009012 | By VIN | 4,000–101,000 mi | from $4,150 | In stock |
Which 2021 Sierra 3500 Pickup unit fits yours?
The VIN code tells them apart. Decode your VIN, or text it to us and we'll confirm the match.