2026 GMC Sierra AT4 vs AT4X
The AT4X starts at $79,600, $12,600 more than the AT4 ($67,000). For that you get: 0.4″ more ground clearance.
What the AT4X adds for $12,600 more
- 0.4″ more ground clearance
What it gives up
- Up to 4 MPG less (best 19 vs 23)
- Tows 300 lb less (8,700 lb)
- About 390 lb heavier
| Spec | AT4 | AT4X |
|---|---|---|
| Price (MSRP) | $67,000–$67,500 | $79,600 |
| Engines | 3.0L I6 diesel (305 hp) | 3.0L I6 diesel (305 hp) |
| Drive | 4WD | 4WD |
| MPG (combined) | 23 | 19 |
| Towing (max) | 9,000 lb | 8,700 lb |
| Seats | 5 | 5 |
| Upholstery | leather | premium leather |
| Paint colors | 6 | 6 |
| Curb weight (from) | 5,500 lb | 5,890 lb |
| Ground clearance | 11.1″28 cm | 11.5″29 cm |
2026 model year, manufacturer's suggested retail prices before destination fees, taxes and options. Ranges cover every configuration of the trim.
More Sierra trim comparisons
All Sierra trims, prices and dimensions · Sierra cost to drive