HomeHVAC > Motors, Core, Case and Related ComponentsStandard Ignition RU-103 HVAC Blower Motor Resistor - Front or Rear
Part #: RU-103

Standard Ignition RU-103 HVAC Blower Motor Resistor - Front or Rear

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⚙️ 29 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge, Ram 1500 Van, Ram 2500 Van, Ram 3500 Van, B1500, B2500, and B3500
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Reliable HVAC Blower Motor Resistor for Dodge Vans and Trucks

The Standard Ignition RU-103 HVAC blower motor resistor is designed to restore proper blower motor function in select Dodge vehicles. Engineered for durability and precise fitment, this resistor supports multiple fan speeds to ensure consistent climate control performance.

  • Attachment Method: Bolt on for secure installation
  • Electronic coil type for efficient operation
  • Female rectangular connector with 4 cavities
  • Supports 3-5 speed blower motor control
  • Includes mounting bracket(s) for easy setup
  • Blade-type male terminals, 4 in total
  • No wiring harness or hardware included

Product Details and Specifications

The RU-103 blower motor resistor from Standard Ignition is specifically designed for use in Dodge B1500, B2500, B3500, Ram 1500 Van, Ram 2500 Van, and Ram 3500 Van models. Its bolt-on attachment method ensures a secure and stable fit within the HVAC system. The resistor features an electronic coil type that provides reliable resistance control for the blower motor, enabling smooth operation across 3 to 5 fan speeds. The connector is female with a rectangular shape and includes 4 cavities, matching the vehicle’s wiring harness configuration. The resistor terminals are blade type and male, with four terminals total, facilitating proper electrical connection. While the product includes mounting brackets, it does not come with additional hardware or wiring harnesses, so existing vehicle components are used during installation.

Common Applications and Problem Resolution

  • Restores blower motor speed control in Dodge B1500, B2500, B3500, and Ram Van models
  • Resolves issues with blower motor only working on certain speeds or not at all
  • Fixes inconsistent airflow or blower motor failure due to resistor malfunction
  • Addresses electrical resistance faults within the HVAC blower motor circuit
  • Improves climate control system reliability and passenger comfort

Installation Notes and Tips

Installation of the Standard Ignition RU-103 blower motor resistor requires removal of the old resistor from the HVAC housing. Since the resistor uses a bolt-on attachment method and includes mounting brackets, ensure bolts are securely tightened to prevent vibration or loosening. Verify the connector shape and terminal type match the vehicle’s wiring harness before installation. No wiring harness or additional hardware is included, so retain existing components for reassembly. It is recommended to disconnect the vehicle battery before installation to avoid electrical shorts.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RU-103 blower motor resistor undergoes quality control testing to ensure reliable performance in Dodge B1500, B2500, B3500, and Ram Van models. While specific warranty details are not provided here, Standard Ignition typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberRU-103
Attachment MethodBolt On
Coil TypeElectronic
Connector GenderFemale
Connector ShapeRectangular
Hardware IncludedNo
Harness Length - cmNo wire
Harness Length - inchesNo wire
Mounting Bracket(s) IncludedYes
Number Of Connector Cavities4
Number Of Speeds3-5 Speed
Terminal GenderMale
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 29 vehicles. Search below:

YearMakeModelPositionNotes
2003DodgeRam 1500 VanN/A
2003DodgeRam 2500 VanN/A
2003DodgeRam 3500 VanN/A
2002DodgeRam 1500 VanN/A
2002DodgeRam 2500 VanN/A
2002DodgeRam 3500 VanN/A
2001DodgeRam 1500 VanN/A
2001DodgeRam 2500 VanN/A
2001DodgeRam 3500 VanN/A
2000DodgeRam 1500 VanN/A
2000DodgeRam 2500 VanN/A
2000DodgeRam 3500 VanN/A
1999DodgeRam 1500 VanN/A
1999DodgeRam 2500 VanN/A
1999DodgeRam 3500 VanN/A
1998DodgeB1500N/A
1998DodgeB2500N/A
1998DodgeB3500N/A
1998DodgeRam 1500 VanN/A
1998DodgeRam 2500 VanFront
1998DodgeRam 2500 VanRear
1998DodgeRam 3500 VanFront
1998DodgeRam 3500 VanRear
1997DodgeB1500N/A
1997DodgeB2500N/A
1997DodgeB3500N/A
1997DodgeRam 1500 VanN/A
1997DodgeRam 2500 VanFront
1997DodgeRam 3500 VanFront

* 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:

19113136202582BMR026947349984P133253-696086C597004161973-021BMR8BMRB10019BR129BR192MT18075RU898RUC1059

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