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Standard Ignition RU-340 HVAC Blower Motor Resistor - Rear
Overview of Standard Ignition HVAC Blower Motor Resistor RU-340
The Standard Ignition HVAC Blower Motor Resistor RU-340 is designed specifically for Toyota 4Runner models. This component regulates the blower motor speeds, ensuring proper climate control functionality within your vehicle's HVAC system.
- Compatible with Toyota 4Runner HVAC systems
- Supports 3-5 speed blower motor operation
- Includes mounting bracket for secure installation
- Features a 10.8-inch (4 1/4") wiring harness with female round connector
- 12-volt electrical rating with two blade terminals (male)
- Attachment method: screw mount for reliable fitment
- Wiring harness included for direct replacement
Detailed Product Description
The Standard Ignition RU-340 blower motor resistor is engineered to control the electrical current flowing to the blower motor in Toyota 4Runner vehicles. It supports multiple blower speeds, ranging from 3 to 5, allowing for precise adjustment of cabin airflow. The resistor features a screw attachment method and comes with a mounting bracket to ensure a secure and stable installation. The included wiring harness measures 10.8 inches (4 1/4 inches) in length and terminates in a female round connector with one cavity, designed to mate with the vehicle’s male blade terminals. This resistor operates at 12 volts and includes two male blade terminals, providing a reliable electrical connection for consistent HVAC performance.
Common Applications and Issues Resolved
- Restores proper blower motor speed control in Toyota 4Runner HVAC systems
- Eliminates blower motor failure to operate at certain speeds
- Resolves inconsistent or intermittent blower motor function
- Fixes overheating or electrical resistance issues in the blower circuit
- Addresses blower motor resistor failures causing no airflow or stuck fan speeds
Installation Notes and Tips
- Ensure vehicle ignition is off before installation to prevent electrical shock
- Use the included mounting bracket and screws for secure attachment
- Verify connector orientation: female round connector mates with male blade terminals
- Check wiring harness length (10.8 inches) for proper routing and fit
- Inspect surrounding HVAC components for damage or corrosion during replacement
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RU-340 blower motor resistor undergoes rigorous quality control to ensure durability and reliable performance in Toyota 4Runner vehicles. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship.
| Brand | Standard Ignition |
| Part Number | RU-340 |
| Attachment Method | Screw |
| Connector Gender | Female |
| Connector Shape | Round |
| Hardware Included | No |
| Harness Length - cm | 10.8" |
| Harness Length - inches | 4 1/4" |
| Mounting Bracket(s) Included | Yes |
| Number Of Connector Cavities | 1 |
| Number Of Speeds | 3-5 Speed |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Wiring Harness Included | Yes |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1995 | Toyota | 4Runner | Rear | w/ Factory Installed AC |
| 1994 | Toyota | 4Runner | Rear | w/ Factory Installed AC |
| 1993 | Toyota | 4Runner | Rear | w/ Factory Installed AC |
| 1992 | Toyota | 4Runner | Rear | w/ Factory Installed AC |
| 1991 | Toyota | 4Runner | Rear | HVAC Blower Control Switch Connector compatible with Auxiliary AC. |
| 1990 | Toyota | 4Runner | Rear | HVAC Blower Control Switch Connector compatible with Auxiliary AC. |
| 1989 | Toyota | 4Runner | Rear | HVAC Blower Control Switch Connector compatible with Auxiliary AC. |
* 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.