2021 Chevrolet
Silverado Cab Chassis 4WD
Auto 6-spd, 6 cyl, 4.3 L, SIDI
Chevrolet Silverado Cab Chassis: best and worst years
Closest available photo (2019 model year); you're viewing the 2021.
Overview
- Body
- Special Purpose Vehicle 4WDEPA, from EPA, last updated 6/22/2026
- Drivetrain
- 4-Wheel DriveEPA, from EPA, last updated 6/22/2026
- Transmission
- Automatic 6-spdEPA, from EPA, last updated 6/22/2026
- Powertrain
- GasEPA, from EPA, last updated 6/22/2026
- Fuel
- RegularEPA, from EPA, last updated 6/22/2026
Engine & performance
- Aspiration
- Naturally aspiratedEPA, from EPA, last updated 6/22/2026
- Start-stop system
- NoEPA, from EPA, last updated 6/22/2026
Efficiency
- MPG Hwy
- 16 mpgEPA, from EPA, last updated 6/22/2026
- MPG City
- 14 mpgEPA, from EPA, last updated 6/22/2026
- MPG Comb
- 15 mpgEPA, from EPA, last updated 6/22/2026
- Fuel $/yr
- $4,150EPA, from EPA, last updated 6/22/2026
- CO₂
- 592 g/miEPA, from EPA, last updated 6/22/2026
- Eco Score
- 2/10EPA, from EPA, last updated 6/22/2026
- Smog score
- 6/10
- Elec. Range
- 0 miEPA, from EPA, last updated 6/22/2026
- SmartWay certified
- No
Dimensions & capacity
- Wheelbase
- 157 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
- Curb Weight
- 6,442 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Safety NHTSA record NHTSA, model year
- Recalls
- 0
- Owner complaints
- 0 See on NHTSA
Warranty manufacturer terms, by make
- Basic
- 3 yr / 36k mi
- Powertrain
- 5 yr / 60k mi
- Roadside assistance
- 5 yr / 60k mi
- Maintenance
- 1 yr / 12k mi
- EV battery
- 8 yr / 100k mi
Source: www.gmfleet.com as of 2026-06
Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.