2021 GMC Sierra Fleet/Base Crew Cab V8,
The overview
- Exterior Color
- Summit White [White]
- Odometer
- 61,564 miles
- Drivetrain
- 4WD
- Engine
- V8, 6.6L
- VIN
- 1GT49LEY4MF112441
- Stock Number
- T3249B
The full specifications
- 1st and 2nd row curtain head airbags
- 4-wheel ABS Brakes
- ABS and Driveline Traction Control
- AM/FM/Satellite-prep Radio
- Audio System Premium Brand: GMC Infotainment System
- Audio system memory card slot
- Automatic locking hubs
- Auxilliary engine cooler
- Auxilliary transmission cooler
- Black grille w/chrome surround
- Bluetooth wireless phone connectivity
- Braking Assist
- Clock : Digital
- Daytime running lights
- Dusk sensing headlights
- External temperature display
- Fold-up cushion rear seats
- Front Head Room : 43.0 "
- Front Hip Room: 61.2"
- Front Independent Suspension
- Front Leg Room: 44.5"
- Front Shoulder Room: 66.0"
- Front Stabilizer Bar : Bar
- Front Ventilated disc brakes
- Front and rear reading lights
- Front split-bench
- Front suspension stabilizer bar
- Fuel Capacity: 36.0 gal.
- Fuel Type: Regular unleaded
- Headlights off auto delay
- Independent front suspension classification
- Instrumentation: Low fuel level
- Leaf rear spring
- Leaf rear suspension
- Manual driver mirror adjustment
- Manual extendable trailer style exterior mirrors
- Manual front air conditioning
- Manual passenger mirror adjustment
- One 12V DC power outlet
- Overall Width : 81.8 "
- Overall height: 79.7"
- Overhead console: Mini
- Passenger Airbag
- Passenger vanity mirrors
- Power door locks
- Power steering
- Power windows
- Privacy glass: Light
- Rear Head Room: 39.9"
- Rear Hip Room: 60.2"
- Rear Leg Room: 43.4"
- Rear Shoulder Room: 65.3"
- Rigid axle rear suspension
- Short and long arm front suspension
- Side airbag
- Silver steel rims
- Spare Tire Mount Location: Underbody w/crankdown
- Split rear bench
- Stability controll with anti-roll
- Steel spare wheel rim
- Suspension class: Regular
- Tachometer
- Tilt-adjustable steering wheel
- Tire Pressure Monitoring System: Tire specific
- Torsion bar front spring
- Total Number of Speakers: 6
- Trailer hitch
- Trip computer
- Urethane shift knob trim
- Urethane steering wheel trim
- Variable intermittent front wipers
- Vehicle Emissions: LEV II
- Video Monitor Location: Front
- Vinyl seat upholstery
- Wheel Diameter: 17
- Wheel Width: 7.5
KBB.com Consumer Reviews
3.8out of 5 overall- 2.0
Transmission trash
by Jason on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk - 5.0
Fantastic truck
by Jjj on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck! - 3.0
Don't judge a truck by the appearance
by jmil on Wednesday, May 11, 2022
Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).