# 2026 GMC Sierra 3500HD AT4

The 2026 GMC Sierra 3500HD AT4 is a new truck. It features a 6.6L V8 engine, 4WD, and Diesel power. Available now at Reliable Buick GMC in Roseville, CA 95661, priced at $83,705.

**Price:** $83,705

## Specifications

- Fuel: Diesel
- Engine: 6.6L V8
- Drivetrain: 4WD

## Available offers

- Buick & GMC Consumer Cash Program — $1,000