Skip to main content
Great Deal
2021 GMC Sierra 1500 Crew Cab
AT4 Pickup 4D 5 3/4 ft
60,002 miles
Includes:$3,385 in factory upgrades
|

Why You’ll Love This Sierra 1500

Slotted between the SLT and Denali trims in the Sierra 1500 lineup, the AT4 equips this Crew Cab for confident everyday use with an off-road suspension featuring Rancho shocks, the versatile GMC MultiPro Tailgate, and adventure-ready engineering.

AT4 High Clearance Step

Originally valued at $1,095, this option provides easier entry and exit from the cabin, especially in off-road conditions.

Duramax 3.0L Turbo-Diesel I6 Engine

Originally valued at $995, this engine delivers strong torque and fuel efficiency for hauling and long-distance driving.

20-inch machined aluminum wheels

Originally valued at $800, these wheels enhance the vehicle's appearance and provide a sturdy foundation for the ride.

Satin Steel Metallic paint

Originally valued at $495, this exterior paint finish provides a distinctive and refined aesthetic.

Off-road suspension with Rancho shocks

Features an off-road suspension system with Rancho shocks, providing enhanced damping and control over rugged terrain.

GMC MultiPro tailgate

A versatile tailgate offers six distinct functions, simplifying loading, unloading and accessing the bed.

High-torque diesel power

Delivers substantial 460 lb-ft of torque through a 3.0 Liter turbo diesel 6-cylinder engine, a 10-speed automatic transmission and 4WD, providing strong towing and hauling capability.

Adventure-ready engineering

The AT4 trim is engineered for serious off-road capability, integrating specialized hardware and design for challenging terrain.

High definition surround vision

Provides a comprehensive 360-degree view around the vehicle, including provisions for two trailer-view cameras, assisting with parking and maneuvering.

Automatic locking rear differential

Engages automatically to provide maximum traction to both rear wheels when slippage is detected, enhancing off-road capability.

Heated and ventilated front seats

Front bucket seats are heated and ventilated for comfort in various weather conditions.

Spray-on bedliner

A durable spray-on bedliner protects the truck bed from scratches and impacts and features an AT4 logo.

This content is AI-generated and some details may not be 100% accurate. Refer to the details throughout this page for specific vehicle info.

Looking for specific vehicle info?