The 2001 Mazda B3000 tire size depends on trim: the Dual Sport, 2D Pickup Extra Cab, Automatic, 4R44E takes P235/75R15 105S; the Dual Sport, 2D Pickup Extra Cab, Automatic, 5R44E takes P235/75R15 105S; the Dual Sport, 2D Pickup Extra Cab, Standard takes P235/75R15 105S; the Dual Sport, 2D Pickup, 3.0 U, Automatic, 4R44E takes P235/75R15 105S; the Dual Sport, 2D Pickup, 3.0 U, Automatic, 5R44E takes P235/75R15 105S; the Dual Sport, 2D Pickup, 3.0 U, Standard takes P235/75R15 105S; the Dual Sport, 2D Pickup, 3.0 V takes P235/75R15 105S; the SE, 2D Pickup Extra Cab, 4WD, Automatic, 4R44E takes P245/75R16 109S; the SE, 2D Pickup Extra Cab, 4WD, Automatic, 5R44E takes P245/75R16 109S; the SE, 2D Pickup Extra Cab, 4WD, Standard takes P245/75R16 109S; the SE, 2D Pickup Extra Cab, RWD, Automatic, 4R44E takes P225/70R15 100S; the SE, 2D Pickup Extra Cab, RWD, Automatic, 5R44E takes P225/70R15 100S; the SE, 2D Pickup Extra Cab, RWD, Standard takes P225/70R15 100S; the SE, 2D Pickup, 4WD, Automatic, 4R44E takes P245/75R16 109S; the SE, 2D Pickup, 4WD, Automatic, 5R44E takes P245/75R16 109S; the SE, 2D Pickup, 4WD, Standard takes P245/75R16 109S; the SE, 2D Pickup, RWD, Automatic, 4R44E takes P225/70R15 100S; the SE, 2D Pickup, RWD, Automatic, 5R44E takes P225/70R15 100S; the SE, 2D Pickup, RWD, Standard takes P225/70R15 100S; the SE, 4D Pickup Extra Cab, 3.0 U, Automatic, 4R44E takes P225/70R15 100S; the SE, 4D Pickup Extra Cab, 3.0 U, Automatic, 5R44E takes P225/70R15 100S; the SE, 4D Pickup Extra Cab, 3.0 U, Standard takes P225/70R15 100S; the SE, 4D Pickup Extra Cab, 3.0 V takes P245/75R16 109S, per the factory service manual.
Factory-Spec Tire Size
Varies by trim
Dual Sport, 2D Pickup Extra Cab, Automatic, 4R44E: P235/75R15 105S
Dual Sport, 2D Pickup Extra Cab, Automatic, 5R44E: P235/75R15 105S
Dual Sport, 2D Pickup Extra Cab, Standard: P235/75R15 105S
Dual Sport, 2D Pickup, 3.0 U, Automatic, 4R44E: P235/75R15 105S
Dual Sport, 2D Pickup, 3.0 U, Automatic, 5R44E: P235/75R15 105S
Dual Sport, 2D Pickup, 3.0 U, Standard: P235/75R15 105S
Dual Sport, 2D Pickup, 3.0 V: P235/75R15 105S
SE, 2D Pickup Extra Cab, 4WD, Automatic, 4R44E: P245/75R16 109S
SE, 2D Pickup Extra Cab, 4WD, Automatic, 5R44E: P245/75R16 109S
SE, 2D Pickup Extra Cab, 4WD, Standard: P245/75R16 109S
SE, 2D Pickup Extra Cab, RWD, Automatic, 4R44E: P225/70R15 100S
SE, 2D Pickup Extra Cab, RWD, Automatic, 5R44E: P225/70R15 100S
SE, 2D Pickup Extra Cab, RWD, Standard: P225/70R15 100S
SE, 2D Pickup, 4WD, Automatic, 4R44E: P245/75R16 109S
SE, 2D Pickup, 4WD, Automatic, 5R44E: P245/75R16 109S
SE, 2D Pickup, 4WD, Standard: P245/75R16 109S
SE, 2D Pickup, RWD, Automatic, 4R44E: P225/70R15 100S
SE, 2D Pickup, RWD, Automatic, 5R44E: P225/70R15 100S
SE, 2D Pickup, RWD, Standard: P225/70R15 100S
SE, 4D Pickup Extra Cab, 3.0 U, Automatic, 4R44E: P225/70R15 100S
SE, 4D Pickup Extra Cab, 3.0 U, Automatic, 5R44E: P225/70R15 100S
SE, 4D Pickup Extra Cab, 3.0 U, Standard: P225/70R15 100S