Showing the 2007 B 4000 4WD: as EPA lists it. Recalls and complaints cover the whole model year. Every version
Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 17, 2026.
Fuel economy
15–16 mpgcombined; city 14–15, highway 17–19; the 4000 4WD
Five years of fuel
$20,300–$21,660U.S. average; Ohio $18,140–$19,350 at local prices; the 4000 4WD; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA's VIN data lists no trims for the 2007 B, so these are the versions EPA tested, by its names. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.
Owners have filed 37 complaints with NHTSA about the 2007 B. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.
Complaints by part of the car
Part
Complaints
Crashes
Fires
Injuries
Air bags
36
0
0
0
Engine and engine cooling
1
0
1
0
Complaints by model year
Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.
NHTSA lists 3 recall campaigns for the 2007 B over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.
Mazda North American Operations (Mazda) is recalling certain 2007-2009 B-Series pickup trucks. The driver's side air bag inflator may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
Remedy: Mazda will notify owners, and dealers will replace the driver-side air bag inflator with an alternate one, free of charge. Owners were notified of the safety risk with an interim letter mailed April 26, 2021. A second letter was sent December 2021. Owners may contact Mazda customer service at 1-800-222-5500 option 4. Mazda's number for this recall is 4821C.
Mazda North America Operations (Mazda) is recalling certain 2007-2009 B-Series trucks sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Additionally, unless included in "Zone B" above, Mazda is recalling certain 2007-2008 B-Series trucks sold, or ever registered, in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Risk: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Owners are advised not to drive their vehicles until the remedy is performed. Mazda will notify owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began June 15, 2018. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 0817A.
Mazda North American Operations (Mazda) is recalling certain model year 2007-2009 B-Series trucks manufactured June 6, 2006, to January 22, 2009, originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Mazda is recalling certain model year 2007-2008 B-Series trucks manufactured February 21, 2006, to April 28, 2008, originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Any vehicle not included in "Zone A", or "Zone B" is not included in this safety recall. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Risk: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Owners are advised not to drive their vehicles until the remedy is performed. Mazda notified owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began June 15, 2018. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 9616F.
Carmakers sent NHTSA 80 service bulletins and notices that cover the 2007 B, the latest on Aug 20, 2026. They tell dealers how to fix known issues.
The parts they mention most: equipment (29), electrical system (19), engine and engine cooling (11), power train (10), service brakes (7).
NHTSA hasn't opened a defect investigation that covers this model year.
Maintenance
Oil
The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2007 B.
EPA class: standard pickup trucks. Each version EPA tested:
Swipe the table sideways for more columns.
Version
Engine
Transmission
Fuel
City / hwy / comb
B2300 Rear-Wheel Drive
2.3 L, 4 cyl
Manual 5-spd
Regular Gasoline
21 / 26 / 23
B2300 Rear-Wheel Drive
2.3 L, 4 cyl
Automatic 5-spd
Regular Gasoline
19 / 24 / 21
B3000 Rear-Wheel Drive
3.0 L, 6 cyl
Manual 5-spd
Regular Gasoline
16 / 21 / 18
B3000 Rear-Wheel Drive
3.0 L, 6 cyl
Automatic 5-spd
Regular Gasoline
15 / 20 / 17
B4000 Rear-Wheel Drive
4.0 L, 6 cyl
Automatic 5-spd
Regular Gasoline
15 / 20 / 17
B4000 4-Wheel or All-Wheel Drive
4.0 L, 6 cyl
Manual 5-spd
Regular Gasoline
15 / 19 / 16
B4000 4-Wheel or All-Wheel Drive
4.0 L, 6 cyl
Automatic 5-spd
Regular Gasoline
14 / 17 / 15
Sources and dates
U.S. EPA fuel economy data, file of Sep 29, 2026
NHTSA owner complaints, file of Oct 17, 2026
NHTSA recalls, file of Oct 17, 2026
NHTSA manufacturer communications, file of Oct 17, 2026
NHTSA defect investigations, file of Oct 17, 2026
NHTSA 5-Star Safety Ratings, file of Aug 7, 2026
U.S. Energy Information Administration, file of Oct 12, 2026
Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data