RD-0214 is the steering-engine component of the KBKhA RD-0212 integrated Proton third-stage propulsion block. KBKhA documents one RD-0214 paired with one RD-0213 main engine, identifies the block nitrogen-tetroxide/UDMH propellant pair, and publishes 3.15 tonnes-force vacuum thrust and 293 s vacuum specific impulse for RD-0214. This component record stores those exact per-engine values while leaving standalone current lifecycle unknown.