HomeHVAC > Motors, Core, Case and Related ComponentsStandard Ignition RU-851 HVAC Blower Motor Resistor
Part #: RU-851

Standard Ignition RU-851 HVAC Blower Motor Resistor

⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Subaru, BRZ
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Reliable HVAC Blower Motor Resistor for Subaru BRZ

The Standard Ignition RU-851 HVAC blower motor resistor is designed to restore proper blower motor speed control in your Subaru BRZ. Engineered for durability and precise fitment, this resistor ensures consistent climate control performance.

  • Attachment method: Screw for secure installation
  • Connector gender: Female with rectangular shape for exact connection
  • Compatible with 3-5 speed blower motors
  • Terminal type: 4 male blade terminals for reliable electrical contact
  • No wiring harness or mounting brackets included

Detailed Product Description

The RU-851 blower motor resistor by Standard Ignition is specifically designed for the Subaru BRZ HVAC system. It features a screw attachment method that provides a stable and secure fit within the blower motor assembly. The resistor includes a female rectangular connector with one cavity, matching the vehicle’s wiring harness for seamless integration. Equipped with four male blade terminals, this resistor supports blower motors with 3 to 5 speed settings, allowing precise control of airflow inside the cabin. Note that this part does not include a wiring harness or mounting brackets, so it is intended for direct replacement of the existing resistor.

Common Applications and Issues Resolved

  • Restores blower motor speed control in Subaru BRZ HVAC systems
  • Fixes blower motor stuck on one speed or no speed at all
  • Eliminates inconsistent or intermittent blower operation
  • Addresses overheating or resistor failure symptoms
  • Improves overall HVAC system reliability and comfort

Installation Notes and Tips

Installation requires removing the old blower motor resistor and securing the RU-851 unit using screws. Ensure the female rectangular connector aligns properly with the vehicle’s wiring harness. Since no wiring harness or mounting brackets are included, reuse existing hardware and connectors. Verify blower motor operation across all speeds after installation to confirm proper function.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RU-851 blower motor resistor undergoes rigorous quality control to ensure durability and reliable performance in Subaru BRZ vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandStandard Ignition
Part NumberRU-851
Attachment MethodScrew
Connector GenderFemale
Connector ShapeRectangular
Hardware IncludedNo
Harness Length - cmNo wire
Harness Length - inchesNo wire
Mounting Bracket(s) IncludedNo
Number Of Connector Cavities1
Number Of Speeds3-5 speed
Terminal GenderMale
Terminal Quantity4
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2020SubaruBRZN/ANot compatible with automatic AC systems.
2019SubaruBRZN/ANot compatible with automatic AC systems.
2018SubaruBRZN/ANot compatible with automatic AC systems.
2017SubaruBRZN/ANot compatible with automatic AC systems.
2016SubaruBRZN/ANot compatible with automatic AC systems.
2015SubaruBRZN/ANot compatible with automatic AC systems.
2014SubaruBRZN/A
2013SubaruBRZN/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:

73532AJ010BR751JA1963RU-851RU1540

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.