What’s Included
1 × Mercury3 Advanced TCU
The Mercury3 Advanced TCU is a powerful standalone transmission control unit designed to provide precise electronic automatic transmission management. Supporting a wide range of transmission configurations and advanced tuning strategies, it delivers smooth gear changes, customizable shift schedules, and extensive transmission control functionality for both street and motorsport applications.
1 × M70-P1 TCU Stand-Alone Input Harness
The M70-P1 TCU Stand-Alone Input Harness provides the primary transmission and vehicle input connections required by the TCU. Designed for reliable signal acquisition, it enables accurate monitoring of critical transmission parameters for precise gear selection and transmission control.
1 × M72-P2 1-Relay Output Harness
The M72-P2 1-Relay Output Harness provides a dedicated relay-controlled output for transmission-related accessories and auxiliary functions. Designed for reliable operation, it simplifies installation while ensuring dependable TCU-controlled power distribution.
1 × M73-P3 Output Harness
The M73-P3 Output Harness provides the main transmission control output connections required for shift solenoids, lock-up control, and auxiliary transmission functions. Designed for durability and reliability, it ensures accurate communication between the TCU and transmission components.
1 × M74-P4 Input Harness
The M74-P4 Input Harness provides additional transmission and vehicle input connections required for advanced transmission management functions. It allows seamless integration of critical transmission signals while ensuring accurate data acquisition and reliable TCU operation.
1 × M75-P5 Output Harness
The M75-P5 Output Harness provides supplementary output connections for advanced transmission control features and auxiliary devices. Designed for flexibility and reliability, it enables the TCU to control additional transmission functions while maintaining a tidy and professional installation.
1 × Tuning Knob
The Tuning Knob allows quick and convenient adjustment of user-configurable transmission parameters. Designed for easy access, it provides the ability to fine-tune transmission behavior and driving characteristics without requiring software changes.
2 × Set Square Buttons
The Set Square Buttons provide user-selectable inputs for transmission control functions and menu navigation. Designed for durability and ease of use, they allow convenient interaction with supported TCU features and operating modes.
1 × 4-Position Map Switch
The 4-Position Map Switch allows the driver to select between four configurable transmission maps or operating modes. Designed for flexibility, it enables instant switching between different shift strategies to suit varying driving conditions and performance requirements.
1 × DB1 Positive Diode Board
The DB1 Positive Diode Board is designed to provide reliable positive-side signal isolation and circuit protection for compatible Spitronics transmission management installations. By preventing unwanted electrical feedback and ensuring clean signal operation, it improves system reliability and helps protect connected TCU circuits. Compact and easy to install, the DB1 Positive Diode Board is ideal for professional wiring solutions in both street and motorsport applications.
Need More Information?
Each component included in this kit has its own dedicated product page containing detailed specifications, compatibility information, installation guidance, and additional product images.
Simply click on any of the component names above to learn more about that specific product.
Kit Includes
✔ 1 × Mercury3 Advanced TCU
✔ 1 × M70-P1 TCU Stand-Alone Input Harness
✔ 1 × M72-P2 1-Relay Output Harness
✔ 1 × M73-P3 Output Harness
✔ 1 × M74-P4 Input Harness
✔ 1 × M75-P5 Output Harness
✔ 1 × Tuning Knob
✔ 2 × Set Square Buttons
✔ 1 × 4-Position Map Switch
✔ 2 × DB1 Positive Diode Board
