HomeHVAC > Motors, Core, Case and Related ComponentsStandard Ignition RU-846 HVAC Blower Motor Resistor
Part #: RU-846

Standard Ignition RU-846 HVAC Blower Motor Resistor

11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Porsche, 944 and 968
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Reliable HVAC Blower Motor Resistor for Porsche 944 and 968

The Standard Ignition RU-846 HVAC blower motor resistor is designed to restore proper blower motor speed control in Porsche 944 and 968 models. Engineered for durability and precise fitment, this resistor ensures consistent HVAC performance.

  • Attachment method: Screw for secure installation
  • Female rectangular connector with one cavity
  • Supports 3 to 5 blower motor speeds
  • Five male bullet terminals for reliable electrical connection
  • No wiring harness or mounting brackets included

Product Details and Specifications

This HVAC blower motor resistor from Standard Ignition features a screw attachment method, providing a stable and secure fit within the HVAC system of Porsche 944 and 968 vehicles. The resistor includes a female rectangular connector designed with one cavity, compatible with the vehicle’s wiring harness. It supports between three and five blower motor speeds, allowing for precise control of the HVAC blower fan. The resistor terminals are male bullet type, with a total of five terminals to ensure proper electrical connectivity. Note that this part does not include a wiring harness or mounting brackets, so existing hardware must be reused during installation.

Common Applications and Problem Resolution

  • Restores blower motor speed control in Porsche 944 and 968 HVAC systems
  • Resolves issues with blower fan stuck on one speed or not working at all
  • Fixes intermittent blower motor operation or inconsistent airflow
  • Addresses electrical resistance failures causing HVAC blower malfunction

Installation Notes and Tips

Installation requires removal of the old blower motor resistor and securing the new RU-846 resistor using screws. Ensure the female rectangular connector aligns properly with the vehicle’s wiring harness. Since no wiring harness or mounting brackets are included, retain existing components for reinstallation. Verify all electrical connections are secure to prevent blower motor speed issues.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit and function. The RU-846 blower motor resistor undergoes quality checks to ensure reliable performance in Porsche 944 and 968 HVAC systems. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandStandard Ignition
Part NumberRU-846
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 Quantity5
Terminal TypeBullet
Wiring Harness IncludedNo

This part fits 11 vehicles. Search below:

YearMakeModelPositionNotes
1995Porsche968N/A
1994Porsche968N/A
1993Porsche968N/A
1992Porsche968N/A
1991Porsche944N/A
1990Porsche944N/A
1989Porsche944N/A
1988Porsche944N/A
1987Porsche944N/A
1986Porsche944N/A
1985Porsche944N/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:

94461610500BR746JA1940RU-846RU1535

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