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Standard Ignition RU-90 HVAC Blower Motor Resistor
Overview of Standard Ignition HVAC Blower Motor Resistor RU-90
The Standard Ignition HVAC Blower Motor Resistor RU-90 is designed specifically for Toyota Supra models, providing reliable control over your vehicle's blower motor speeds. This resistor supports 3 to 5 speed settings, ensuring precise airflow regulation within your HVAC system.
- Compatible with Toyota Supra HVAC systems
- Supports 3-5 blower motor speeds for versatile airflow control
- Rectangular female connector with one cavity for secure connection
- Blade-type male terminals, quantity of five, operating at 12 volts
- Screw attachment method for stable mounting without included hardware
- No wiring harness or mounting brackets included
Detailed Product Description
The Standard Ignition RU-90 blower motor resistor is engineered to regulate the electrical current to the blower motor, allowing multiple fan speeds in Toyota Supra vehicles. Featuring a rectangular female connector with a single cavity, it ensures a precise fit with the vehicle’s wiring harness. The resistor uses five blade-type male terminals, designed for a 12-volt system, which is standard in automotive HVAC applications. The unit mounts securely using screws, though mounting hardware is not included, allowing for straightforward installation in the blower motor assembly.
Common Applications and Issues Addressed
- Restores proper blower motor speed control in Toyota Supra HVAC systems
- Resolves blower motor stuck on one speed or no speed
- Fixes intermittent blower motor operation or inconsistent airflow
- Eliminates overheating or electrical resistance failures in blower circuits
- Addresses issues related to faulty blower motor resistor causing HVAC malfunctions
Installation Notes and Tips
- Ensure vehicle ignition is off before installation to avoid electrical hazards
- Use appropriate screwdrivers for the screw attachment method; hardware is not included
- Verify connector orientation matches the rectangular female connector on the resistor
- Check the condition of the wiring harness and terminals before installation
- Consult the Toyota Supra service manual for specific blower motor resistor location and removal procedures
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RU-90 blower motor resistor undergoes rigorous quality control to ensure durability and reliable performance in Toyota Supra HVAC systems. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | Standard Ignition |
| Part Number | RU-90 |
| Attachment Method | Screw |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Hardware Included | No |
| Harness Length - cm | No wire |
| Harness Length - inches | No wire |
| Mounting Bracket(s) Included | No |
| Number Of Connector Cavities | 1 |
| Number Of Speeds | 3-5 Speed |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Wiring Harness Included | No |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1992 | Toyota | Supra | N/A | |
| 1991 | Toyota | Supra | N/A | |
| 1990 | Toyota | Supra | N/A | |
| 1989 | Toyota | Supra | N/A | |
| 1988 | Toyota | Supra | N/A | |
| 1987 | Toyota | Supra | N/A | |
| 1986 | Toyota | Supra | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.