Last updated August 4, 2026
The 2009 Mazda B-Series has two clear choices. The B2300 is the entry work truck, with a regular cab, rear-wheel drive, and a fuel-efficient four-cylinder for everyday jobs. The B4000 is the capability upgrade, adding a stronger V6, four-wheel drive, a roomier Cab Plus body, and much greater towing capacity.
The Work Truck trim level, represented by the B2300, is a straightforward small pickup built around basic utility, a regular cab, and simple cabin materials.
Best for: Drivers who need an uncomplicated truck for light hauling, smaller trailers, and everyday work.
Highlights
The Base Upgrade trim level, represented by the B4000, is the stronger, more versatile B-Series for towing, poor weather, and rougher work sites.
Best for: Drivers who need more power, four-wheel-drive traction, and extra cabin flexibility.
Highlights
Steps up from the Work Truck with a V6, part-time four-wheel drive with low range, a four-door Cab Plus body, seating for five, and higher towing capacity.
0 in stock| Feature | Work Truck | Base Upgrade |
|---|---|---|
| Includes | B23000 in stock | B40000 in stock |
| Engine | 2.3-liter four-cylinder | 4.0-liter V6 |
| Power | 143 hp; 154 lb-ft | 207 hp; 238 lb-ft |
| Drivetrain | Rear-wheel drive | Part-time 4WD with low range |
| Transmission | 5-speed manual | 5-speed automatic |
| Cab and seating | 2-door regular cab; 3 seats | 4-door Cab Plus; 5 seats |
| Maximum towing | 2,260 pounds | 5,600 pounds |
| Fuel economy | 21 city / 26 highway mpg | 15 city / 19 highway mpg |
| Cabin finish | Cloth bench seat; vinyl floor | Cloth interior; carpeted floor; air conditioning |
In the final U.S. lineup, the two trims were B2300 and B4000. The B2300 was the basic regular-cab work truck, while the B4000 was the V6-powered, four-wheel-drive Cab Plus model.
In the final lineup, the names point to engine size. The B2300 has a 2.3-liter four-cylinder, while the B4000 has a 4.0-liter V6.
The B2300 is the simpler rear-wheel-drive regular cab with a four-cylinder engine. The B4000 adds a stronger V6, four-wheel drive, a higher-riding chassis, and the four-door Cab Plus body.
The B2300's 2.3-liter four-cylinder makes 143 horsepower and 154 lb-ft of torque. The B4000's 4.0-liter V6 raises that to 207 horsepower and 238 lb-ft, giving it more muscle for towing and difficult terrain.
The B2300 is a two-door regular cab with a front bench seat for up to three people. The B4000 uses the four-door Cab Plus body with rear jump seats and room for up to five.
The B4000 has part-time four-wheel drive with a low range. The B2300 is rear-wheel drive, so it is the simpler choice for mostly paved roads and lighter work.
In the final lineup, the B4000 adds a V6, four-wheel drive, a higher-riding chassis, the Cab Plus body with rear jump seats, air conditioning, and carpeted flooring.
Yes. In the final lineup, both include a Class III trailer hitch receiver and trailer wiring. Their towing ability differs, though, because the B4000 has the stronger V6 and four-wheel-drive chassis.
The B2300 is the more suitable fit. Its four-cylinder engine, rear-wheel drive, regular cab, and simple interior are aimed at everyday work, lighter towing, and lower fuel use.
The B4000 is the one to look for. Its part-time four-wheel drive, low range, and higher-riding chassis provide more traction and control on snow, loose surfaces, and rough ground.
The B4000 is the stronger towing choice because it has the 4.0-liter V6. In the final lineup, maximum towing ratings ran from 2,260 pounds to 5,600 pounds, depending on the truck.
The B2300 has the simpler work-focused cabin, with vinyl flooring and a cloth-trimmed 60/40 front bench seat. Its basic audio system uses two speakers.
No. The lineup became simpler at the end of its U.S. run. The B4000 Cab Plus SE was dropped, leaving the B2300 regular cab and B4000 Cab Plus 4 as the final two versions.