The power steering rack and pinion assembly is a critical component of your Nissan Sentra or Sunny‘s steering system. This hydraulic rack-and-pinion unit converts the rotational movement of the steering wheel into linear motion, turning the front wheels to control the vehicle’s direction. For Nissan Sentra B13, Sunny B13, and Nissan NX models (1991-1994), a properly functioning steering rack is essential for precise steering response, stable handling, and safe vehicle control. This LHD (Left-Hand Drive) assembly is designed to factory specifications, ensuring proper fit and reliable steering performance . The rack has been verified across multiple sources with dimensions of approximately 1125mm in length .
DIY Diagnosis Guide
How to Tell If Your Power Steering Rack Needs Replacement:
Look for these common signs:
Power steering fluid leaks – Red/brown fluid under the vehicle, weeping from the rack, lines, or inside the boots
Heavy steering – Steering feels unusually difficult, especially at low speeds
Notchy or uneven steering – Steering feels rough, notchy, or inconsistent when turning
Steering play / clunks – Excessive free play in the steering wheel, or clunks over bumps
Uneven tire wear – Tire wear patterns indicating steering alignment issues