The KrAZ-255B entered in production in 1965, with full series production commencing in 1967. The KrAZ-255B was the direct replacement of the earlier serially produced KrAZ-214 truck. The KrAZ-255B (B1) was a later model that featured a revised braking system.The KrAZ-255B had some visual similarities with the earlier KrAZ-214 but had a more powerful engine, a V-8 four-stroke diesel developing 240 hp to replace the six-cylinder two-stroke 205 hp unit of the KrAZ-214. Other design improvements included a hydraulic steering booster replacing the pneumatic booster of the KrAZ-214, and the standard 14.00-20 tyres of the KrAZ-214 were replaced by new wide section pressure adjustable tires with a centralised tire inflation system controlled by the driver directly from cab. In 1976 the KrAZ-255B was equipped with a new dual-circuit braking system that replaced an earlier single circuit system, and such vehicles were given the revised KrAZ-255B (B1) model designation.