OE Quality
60-Day Returns

Standard Ignition RU-576 HVAC Blower Motor Resistor
Overview of Standard Ignition HVAC Blower Motor Resistor RU-576
The Standard Ignition HVAC Blower Motor Resistor RU-576 is designed to regulate the blower motor speeds in select Ford, Lincoln, and Mercury vehicles. This resistor supports 3 to 5 speed settings, ensuring precise control of your vehicle's HVAC blower motor performance.
- Attachment method: Screw for secure installation
- Connector gender: Female with a rectangular shape
- Number of connector cavities: 2
- Terminal type: 5 male blade terminals
- No wiring harness or mounting brackets included
- Compatible with multiple Ford, Lincoln, and Mercury models
Detailed Product Description
The RU-576 blower motor resistor from Standard Ignition is engineered to provide reliable speed control for HVAC blower motors in vehicles such as the Ford Taurus, Lincoln Continental, Mercury Sable, Mark VIII, and Villager. Featuring a screw attachment method, this resistor ensures a stable and secure fit within the HVAC system. The female rectangular connector with two cavities allows for straightforward electrical connections, while the five male blade terminals facilitate efficient current flow across multiple speed settings ranging from three to five speeds.
This resistor does not include a wiring harness or mounting brackets, so it is intended for direct replacement in compatible vehicles using existing hardware. The design supports precise blower motor speed regulation, which is critical for maintaining optimal cabin comfort and HVAC system functionality.
Common Applications and Issues Resolved
- Restores proper blower motor speed control in Ford Taurus and Mercury Villager HVAC systems
- Eliminates blower motor failure to operate at certain speeds in Lincoln Continental and Mark VIII
- Resolves inconsistent or no airflow issues caused by faulty blower motor resistors
- Addresses overheating or electrical resistance problems within the blower motor circuit
Installation Notes and Tips
- Ensure the vehicle is powered off before beginning installation
- Use the screw attachment method to securely mount the resistor in place
- Verify connector orientation: female rectangular connector with two cavities
- Check that all five blade terminals are properly seated for optimal electrical contact
- Retain existing wiring harness and mounting brackets as this part does not include them
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RU-576 blower motor resistor undergoes rigorous quality control to ensure durability and reliable performance in Ford, Lincoln, and Mercury vehicles. Please refer to Standard Ignition's warranty policy for specific coverage details.
| Brand | Standard Ignition |
| Part Number | RU-576 |
| 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 | 2 |
| Number Of Speeds | 3-5 Speed |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Wiring Harness Included | No |
This part fits 47 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2007 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2006 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2005 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2005 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2004 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2004 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2003 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2003 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2002 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2002 | Lincoln | Continental | N/A | Automatic temperature control is needed for proper installation. |
| 2002 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2002 | Mercury | Villager | N/A | Automatic temperature control is needed for proper installation. |
| 2001 | Ford | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2001 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2001 | Lincoln | Continental | N/A | Automatic temperature control is needed for proper installation. |
| 2001 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2001 | Mercury | Villager | N/A | Automatic temperature control is needed for proper installation. |
| 2000 | Ford | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2000 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 2000 | Lincoln | Continental | N/A | Automatic temperature control is needed for proper installation. |
| 2000 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 2000 | Mercury | Villager | N/A | Automatic temperature control is needed for proper installation. |
| 1999 | Ford | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1999 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 1999 | Lincoln | Continental | N/A | |
| 1999 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1999 | Mercury | Villager | N/A | Automatic temperature control is needed for proper installation. |
| 1998 | Ford | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1998 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 1998 | Lincoln | Continental | N/A | |
| 1998 | Lincoln | Mark VIII | N/A | |
| 1998 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1998 | Mercury | Villager | N/A | Automatic temperature control is needed for proper installation. |
| 1997 | Ford | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1997 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 1997 | Lincoln | Continental | N/A | |
| 1997 | Lincoln | Mark VIII | N/A | |
| 1997 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1997 | Mercury | Villager | N/A | Automatic temperature control is needed for proper installation. |
| 1996 | Ford | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1996 | Ford | Taurus | N/A | Automatic temperature control is needed for proper installation. |
| 1996 | Lincoln | Continental | N/A | |
| 1996 | Mercury | Sable | N/A | Automatic temperature control is needed for proper installation. |
| 1996 | Mercury | Villager | N/A | Automatic temperature control is needed for proper installation. |
| 1995 | Lincoln | Continental | N/A | |
| 1994 | Lincoln | Continental | N/A | |
| 1993 | Lincoln | Continental | 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.