Command every blower fan speed on your 2008-2011 Ford Focus with the Standard Ignition HVAC Blower Motor Resistor RU-709. A blower motor resistor steps down the current feeding the blower motor so the fan can run across its lower variable-speed settings; if a failed resistor is the cause of missing or intermittent fan speeds, this unit installs as a direct-fit replacement for the listed application.
- Premium copper connectors: deliver more precise resistance values for improved resistor performance and longer part life.
- Kanthal D resistor wire: adds flexibility, durability and tensile strength to the wiring used on higher-watt resistors.
- Electronic coil, 3-5 speed: works with the HVAC system's variable blower-speed control for A/C and heater fan operation.
- 4 male blade terminals: housed in a square, female connector with a single connector cavity; mounts by screw.
The 12-volt resistor uses a black plastic-and-metal housing. A wiring harness, mounting bracket and mounting hardware are not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan.
Interchange: RU1398 · JA1745 · BR609 · 8S4Z18591A · Manufacturer part number RU-709
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the RU-709 blower motor resistor do?
It controls the current sent to the HVAC blower motor, letting the fan run at its lower variable-speed settings for A/C and heater operation.
What vehicle does this resistor fit?
It is a direct-fit replacement for the 2008-2011 Ford Focus (All engines). Check the Buyer's Guide tab to confirm it matches your vehicle.
What are the signs this resistor may need replacing?
The blower may only work on certain speeds, often just high, or lose some lower settings. These signs can have other causes, so diagnose before replacing.
Does it include a wiring harness or mounting hardware?
No. The wiring harness, mounting bracket and hardware are not included; consult the vehicle service information for the correct fasteners.
What part numbers does the RU-709 replace?
It interchanges with RU1398, JA1745, BR609 and 8S4Z18591A. Its own manufacturer part number is RU-709.
Write a Review