HomeHVAC > Motors, Core, Case and Related ComponentsStandard Ignition RU951 HVAC Blower Motor Resistor
Part #: RU951

Standard Ignition RU951 HVAC Blower Motor Resistor

8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Fiat, 500
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HVAC Blower Motor Resistor for Fiat 500

Restore proper blower fan control with this Standard Ignition HVAC blower motor resistor, part number RU951. It is built for vehicles with automatic air conditioning and is a direct-fit service part for the Fiat 500 platform.

  • Standard Ignition RU951 HVAC blower motor resistor
  • Fits 2012-2019 Fiat 500 with automatic air conditioning
  • 3-5 speed blower control application
  • Female 3-cavity rectangular connector
  • Male blade terminals with 6 terminal points
  • Screw attachment design for secure mounting
  • No wiring harness, mounting bracket, or hardware included

Detailed Product Overview

The RU951 is an HVAC blower motor resistor used to regulate blower fan speed in the cabin heating and cooling system. For Fiat 500 models equipped with automatic air conditioning, this Standard Ignition RU951 replacement supports proper fan-speed operation by matching the original electrical interface and mounting style. It is a practical choice when the blower only works on certain speeds or stops responding as expected.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

  • Blower motor works on only one or a few speeds
  • Cabin fan speed changes are inconsistent
  • HVAC fan does not respond at lower or mid-range settings
  • Resistor failure causing loss of normal airflow control
  • Electrical connection issues at the blower resistor circuit

Installation Notes and Tips

Install using the screw attachment points and verify the 3-cavity rectangular connector matches the vehicle harness before installation. Because no wiring harness, mounting bracket, or hardware is included, reuse the original components when serviceable. Confirm the vehicle is a 2012-2019 Fiat 500 with automatic air conditioning before ordering or installation.

Quality Assurance

Standard Ignition replacement parts are built for service applications that match original equipment fit and function requirements. Part number RU951 is listed for the Fiat 500 automatic air conditioning application shown above.

BrandStandard Ignition
Part NumberRU951
Attachment MethodScrew
Connector GenderFemale
Connector Quantity3
Connector ShapeRectangular
Hardware IncludedNo
Harness Length - cmNo wire
Harness Length - inchesNo wire
Mounting Bracket(s) IncludedNo
Number Of Connector Cavities3
Number Of Speeds3-5 speed
Terminal GenderMale
Terminal Quantity6
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2019Fiat500N/Awith automatic air conditioning.
2018Fiat500N/Awith automatic air conditioning.
2017Fiat500N/Awith automatic air conditioning.
2016Fiat500N/Awith automatic air conditioning.
2015Fiat500N/Awith automatic air conditioning.
2014Fiat500N/Awith automatic air conditioning.
2013Fiat500N/Awith automatic air conditioning.
2012Fiat500N/Awith automatic air conditioning.

* 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:

68101157AABMRB10352BR850RU1640RU951

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