Compare 2021 GMC Sierra 3500HD Base vs SLT

$37,400 - $66,900
Price range (MSRP)
2021 GMC Sierra 3500HD For Sale
TBC
City/Hwy
401 hp
Horsepower
8.3
2021 GMC Sierra 3500HD Review and Specs
What are the differences between the 2021 GMC Sierra 3500HD Base and SLT?

Overview

Engine
6.6L V8 Gas
6.6L Turbo V8 Diesel (+$9,890)
Engine
6.6L V8 Gas
6.6L Turbo V8 Diesel (+$9,890)
Transmission
6-Speed Automatic
10-Speed Automatic (Optional)
Transmission
6-Speed Automatic
10-Speed Automatic (Optional)
Drivetrain
Rear-Wheel Drive
Drivetrain
Rear-Wheel Drive
Fuel Tank Capacity
36 gallons
Fuel Tank Capacity
36 gallons
Seating Capacity
3 seater
Seating Capacity
6 seater

Performance Specs

Engine and Transmission

Engine
6.6L V8 Gas
6.6L Turbo V8 Diesel (+$9,890)
6.6L V8 Gas
6.6L Turbo V8 Diesel (+$9,890)
Horsepower
401 hp @ 5200 rpm
401 hp @ 5200 rpm
Torque
464 lb-ft @ 4000 rpm
464 lb-ft @ 4000 rpm
Transmission
6-Speed Automatic
10-Speed Automatic (Optional)
6-Speed Automatic
10-Speed Automatic (Optional)
Drivetrain
Rear-Wheel Drive
Rear-Wheel Drive

Weight and Towing

Maximum Towing Capacity
20,000 lbs
20,000 lbs

Fuel and MPG

Fuel Tank

Fuel Tank Capacity
36 gallons
36 gallons

Dimensions and Measurement

Exterior Dimensions

Length
235.5 in
250.08 in
Height
80.94 in
80.87 in
Max Width
81.75 in
81.85 in
Wheelbase
141.55 in
158.94 in

Interior Space

Seating Capacity
3 seater
6 seater
Front Seat Leg Room
44.53 in
44.53 in
Front Seat Headroom
43.11 in
43.03 in
Front Seat Shoulder Room
66.06 in
66.02 in
Front Seat Hip Room
60.9 in
61.18 in
Rear Seat Leg Room
N/A
43.4 in
Rear Seat Headroom
N/A
40.12 in
Rear Seat Shoulder Room
N/A
65.3 in
Rear Seat Hip Room
N/A
60.24 in

Wheels and Suspension

Steering

Steering Type
Pwr Recirculating Ball
Pwr Recirculating Ball
Turning Diameter
46.9 ft
52.7 ft

Wheels

Wheels Type
Aluminum Wheels
Aluminum Wheels
Front Wheel Size
18" x 8"
18" x 8"
Rear Wheel Size
18" x 8"
18" x 8"

Tires

Front Tire
LT275/70R18
LT275/70R18
Rear Tire
LT275/70R18
LT275/70R18
Spare Tire
LT275/70R18
LT275/70R18

Colors and Materials

Standard Interior Materials

  • Jet Black, Cloth seat trim
  • Jet Black, Cloth seat trim
  • Jet Black, Vinyl seat trim
  • Dark Walnut/Slate, Perforated leather-appointed front outboard seating positions
  • Jet Black, Perforated leather-appointed front outboard seating positions

Features and Options

Infotainment

HD Radio
Not Available
Standard
Bluetooth Connection
Standard
Standard
Premium Sound System
Not Available
Optional
Satellite Radio
Standard
Standard
Smart Device Integration
Not Available
Standard
WiFi Hotspot
Optional
Standard
Auxiliary Audio Input
Standard
Standard
MP3 Player
Standard
Standard

Interior Trim

Bucket Seats
Standard
Optional
Cloth Seats
Standard
Standard
Leather Seats
Standard
Standard
Leather Steering Wheel
Not Available
Standard
Premium Synthetic Seats
Standard
Standard
Vinyl Seats
Standard
Standard
Sun/Moonroof
Not Available
Optional

Comfort

Navigation System
Not Available
Optional
Steering Wheel Audio Controls
Optional
Standard
Power Mirror(s)
Optional
Standard
A/C
Standard
Standard
Climate Control
Not Available
Standard
Cooled Front Seat(s)
Not Available
Optional
Cruise Control
Optional
Standard
Heated Front Seat(s)
Not Available
Standard
Heated Rear Seat(s)
Not Available
Optional
Heated Steering Wheel
Not Available
Standard
Keyless Entry
Optional
Standard
Multi-Zone A/C
Not Available
Standard
Power Driver Seat
Optional
Standard
Power Passenger Seat
Not Available
Standard
Remote Engine Start
Not Available
Standard
Seat Memory
Not Available
Standard
Universal Garage Door Opener
Not Available
Optional
Keyless Start
Not Available
Standard
Telematics
Standard
Standard

Safety

Safety Features

Back-Up Camera
Standard
Standard
Cross-Traffic Alert
Optional
Optional
Rear Parking Aid
Optional
Optional
Blind Spot Monitor
Optional
Optional
Lane Departure Warning
Not Available
Optional
ABS
Standard
Standard
Tire Pressure Monitor
Standard
Standard
Stability Control
Standard
Standard
Traction Control
Standard
Standard

Airbags

Driver Air Bag
Standard
Standard
Front Head Air Bag
Standard
Standard
Front Side Air Bag
Standard
Standard
Passenger Air Bag
Standard
Standard
Rear Head Air Bag
Standard
Standard

Warranty

Warranty Summary

Basic
3 Years / 36,000 Miles
3 Years / 36,000 Miles
Corrosion
3 Years / 36,000 Miles
3 Years / 36,000 Miles
Drivetrain Note
HD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 Miles
HD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 Miles
Drivetrain
5 Years / 60,000 Miles
5 Years / 60,000 Miles
Maintenance Note
1 Year/1 Visit
1 Year/1 Visit
Roadside Assistance Note
HD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 Miles
HD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 Miles
Roadside Assistance
5 Years / 60,000 Miles
5 Years / 60,000 Miles
Rust-Through
6 Years / 100,000 Miles
6 Years / 100,000 Miles
Warranty Note
Preliminary 2021 Warranty
Preliminary 2021 Warranty
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