Auto Transmission Speed Sensor - Actual OE Part New | HITCAS0004

The Hitachi CAS0004 is a precision‑engineered automatic transmission speed sensor designed to measure the rotational speed of the transmission and provide accurate speed data to the vehicle’s transmission control unit (TCU) or engine control module (ECM). This feedback is critical for proper shift timing, cruise control, speedometer accuracy, and overall drivability. Built to meet or exceed original equipment specifications, the CAS0004 delivers reliable performance, durable construction, and direct replacement fitment for compatible Nissan, Infiniti, and other vehicles.

• Accurate Speed Detection – Precisely measures transmission output speed to support smooth shifting and vehicle control.
• OEM‑Quality Engineering – Manufactured to meet or exceed original equipment specifications for reliable fit and function.
• Improves Shift Quality – Helps the transmission control module optimize gear changes for responsive and smooth performance.
• Reliable Signal Output – Stable electrical signal supports proper cruise control operation and accurate speedometer readings.
• Durable Construction – Designed to withstand heat, vibration, and normal drivetrain conditions for long service life.
• Easy Direct Replacement – OE‑style connector and mounting allow plug‑and‑play installation without modification.
• Supports Multiple Vehicle Systems – Influences transmission control, speedometer, ABS, and engine management systems that rely on speed input