Research 2021 Toyota Tundra specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

SR 4WD SR Double Cab 6.5' Bed 5.7L (Natl)


Rear Brake Rotor Diam x Thickness (in) 13.6
Rear Drum Diam x Width (in)
Disc - Rear (Yes or ) Yes
Disc - Front (Yes or ) Yes
Front Brake Rotor Diam x Thickness (in) 13.9
Brake ABS System (Second Line) 4-Wheel
Brake ABS System 4-Wheel
Brake Type 4-Wheel Disc
Drum - Rear (Yes or )

Cargo Area Dimensions

Cargo Box Width @ Floor (in) 66.4
Cargo Box Width @ Wheelhousings (in) 50
Cargo Box Length @ Floor (in) 78.7
Cargo Box Width @ Top, Rear (in) 66.4
Cargo Box (Area) Height (in) 22.2


Cold Cranking Amps @ 0° F (2nd) 710
Cold Cranking Amps @ 0° F (Primary) 710
Maximum Alternator Capacity (amps) 170


Tons/yr of CO2 Emissions @ 15K mi/year 12.7


Engine Oil Cooler Regular Duty
Engine Type Regular Unleaded V-8
Fuel System Sequential MPI
Displacement 5.7 L/346
SAE Net Horsepower @ RPM 381 @ 5600
SAE Net Torque @ RPM 401 @ 3600
Engine Order Code

Exterior Dimensions

Ground to Top of Load Floor (in) 34.3
Ground Clearance, Rear (in) 10.6
Ground Clearance, Front (in) 10.6
Cab to Axle (in) 38.9
Overhang, Rear w/o bumper (in) 47.9
Height, Overall (in) 76.4
Width, Max w/o mirrors (in) 79.9
Length, Overall (in) 228.9
Wheelbase (in) 145.7

Fuel Tank

Fuel Tank Capacity, Approx (gal) 26.4

Interior Dimensions

Front Leg Room (in) 42.5
Front Shoulder Room (in) 65.7
Front Hip Room (in) 62.6
Second Head Room (in) 38.7
Second Leg Room (in) 34.7
Second Shoulder Room (in) 65.6
Front Head Room (in) 39.7
Passenger Capacity 6
Second Hip Room (in) 62.6


EPA Fuel Economy Est - City (MPG) 13
EPA Fuel Economy Est - Hwy (MPG) 17
Fuel Economy Est-Combined (MPG) 14


Steering Type Rack-Pinion
Turning Diameter - Curb to Curb (ft) 44


Vehicle Name Toyota Tundra 4WD
Body Code T
Body Style Double Cab


Axle Ratio (:1) - Front 4.30
Axle Type - Rear Rigid Axle
Axle Type - Front Independent
Suspension Type - Rear Leaf
Suspension Type - Front Double Wishbone
Axle Ratio (:1) - Rear 4.30


Rear Tire Order Code
Front Tire Order Code
Spare Tire Order Code
Front Tire Size P275/65TR18
Front Tire Size P255/70TR18
Rear Tire Size P275/65TR18
Rear Tire Size P255/70TR18
Spare Tire Size Full-Size


Maximum Trailering Capacity (lbs) 9900
Dead Weight Hitch - Max Trailer Wt. (lbs) 5000
Dead Weight Hitch - Max Tongue Wt. (lbs) 500
Wt Distributing Hitch - Max Trailer Wt. (lbs) 9900
Wt Distributing Hitch - Max Tongue Wt. (lbs) 990


Drivetrain Four Wheel Drive
Trans PTO Access No
Reverse Ratio (:1) 3.06
Sixth Gear Ratio (:1) 0.59
Fifth Gear Ratio (:1) 0.73
Fourth Gear Ratio (:1) 1.00
Third Gear Ratio (:1) 1.35
Second Gear Ratio (:1) 1.96
First Gear Ratio (:1) 3.33
Trans Description Cont. Again
Trans Description Cont. Automatic w/OD
Trans Type 6
Trans Order Code
Transfer Case Power Take Off No
Transfer Case Model Electronic

Weight Information

Gross Vehicle Weight Rating Cap (lbs) 7100
Gross Axle Wt Rating - Rear (lbs) 4150
Gross Axle Wt Rating - Front (lbs) 4000
Gross Combined Wt Rating (lbs) 16000


Front Wheel Material Forged Aluminum
Front Wheel Material Styled Steel
Rear Wheel Material Forged Aluminum
Rear Wheel Material Styled Steel
Spare Wheel Size (in) Full-Size
Front Wheel Size (in) 18 X 8
Spare Wheel Material Steel
Rear Wheel Size (in) 18 X 8