- boom, jib
- bump, dent
- bending radius, (sweep)
- bending, curve
- bubble, blister
- binder, ring, sheet metal holder
- bolt, pin, stud
- brake lining, brake pad
- brake, apply the brakes
- base paint, base coat
- battery clamp, battery-cable terminal
- bleeder (brakes)
- brake light, stop light (brakes)
- brake play, brake clearance
- bracket, bow
- bleed, ventilate
- bargain, haggle
- broken glass, glass splinter
- balance, equilibrium
- bearing shells, slide bearing, sliding bearing; plain bearing
- bulb, incandescent lamp
- boundary, border, limit
- base surface, floor space
- bottom plate, base plate
- bearer, cross-tie
- bouncing (suspension)
- bushing, bush, sleeve, socket
- bent, curved
- baggage load, luggage load
- business; (Laden) store
- business unit, division
- back, rear
- booster (battery)
- bore, caliber
- body spacing equipment (body spacer)
- bodyshell, car body
- buy, purchase
- bevel wheel, conical gear wheel
- beam (radar)
- baby seat, child seat
- bonding agent, adhesive; (Leim) glue
- bracket, control panel
- burden center, charge number, cost center
- bending radius, radius of curvature
- ball (and socket) joint
- ball socket (joint)
- bearing block, bearing support, bearing raise
- bracket; (Kette) plate
- border, lip
- bush; (Kupplung) sleeve
