HomeHVAC > Motors, Core, Case and Related ComponentsStandard Ignition RU-344 HVAC Blower Motor Resistor - Rear
Part #: RU-344

Standard Ignition RU-344 HVAC Blower Motor Resistor - Rear

Rear
⚙️ 56 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Oldsmobile, Blazer, Jimmy, S10, Sonoma, Bravada, C1500 Suburban, C2500 Suburban, K1500 Suburban, and K2500 Suburban
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Reliable HVAC Blower Motor Resistor for Chevrolet and GMC Vehicles

The Standard Ignition RU-344 HVAC blower motor resistor is designed to restore proper blower motor function in select Chevrolet, GMC, and Oldsmobile models. Engineered for durability and precise fitment, this resistor supports multiple blower speeds to ensure consistent climate control performance.

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

Technical Details and Compatibility

The RU-344 blower motor resistor from Standard Ignition features an electronic coil type that regulates blower motor speeds between 3 and 5 settings, compatible with various HVAC systems. Its bolt-on attachment method and included mounting bracket(s) simplify installation without the need for additional hardware. The resistor connects via a single female connector shaped rectangular and oval, housing 4 connector cavities with blade-type male terminals. This part is designed specifically for vehicles such as Chevrolet Blazer, GMC Jimmy, and Oldsmobile Bravada, as well as Chevrolet and GMC Suburban models including C1500, C2500, K1500, and K2500, plus Chevrolet S10 and Sonoma trucks.

Common Applications and Problem Resolution

  • Restores blower motor speed control in Chevrolet Blazer and GMC Jimmy HVAC systems
  • Resolves issues with inconsistent or non-functioning blower speeds in Chevrolet Suburban models
  • Fixes blower motor resistor failures causing no airflow or limited fan speed options
  • Addresses overheating or electrical resistance problems in HVAC blower circuits
  • Compatible replacement for Oldsmobile Bravada blower motor resistor failures

Installation Notes and Tips

Installation of the Standard Ignition RU-344 blower motor resistor requires removal of the HVAC blower motor housing to access the resistor assembly. The bolt-on attachment method and included mounting bracket(s) facilitate a secure fit. Ensure the female connector aligns properly with the rectangular and oval shape to avoid connection issues. Since no wiring harness or additional hardware is included, retain original components during replacement. 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-344 blower motor resistor undergoes rigorous quality control to ensure reliable performance in compatible Chevrolet, GMC, and Oldsmobile vehicles. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to support long-term use.

BrandStandard Ignition
Part NumberRU-344
Attachment MethodBolt On
Coil TypeElectronic
Connector GenderFemale
Connector ShapeRectangular, Oval
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 56 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005ChevroletBlazerN/A
2005GMCJimmyN/A
2004ChevroletBlazerN/A
2004ChevroletS10N/A
2004GMCJimmyN/A
2004GMCSonoma4.3LV6N/A
2003ChevroletBlazerN/A
2003ChevroletS10N/A
2003GMCJimmyN/A
2003GMCSonomaN/A
2002ChevroletBlazerN/A
2002ChevroletS10N/A
2002GMCJimmyN/A
2002GMCSonomaN/A
2001ChevroletBlazerN/ANot compatible with automatic AC systems.
2001ChevroletS10N/A
2001GMCJimmyN/ANot compatible with automatic AC systems.
2001GMCSonomaN/A
2001OldsmobileBravadaN/ANot compatible with automatic AC systems.
2000ChevroletBlazerN/ANot compatible with automatic AC systems.
2000ChevroletS10N/A
2000GMCJimmyN/ANot compatible with automatic AC systems.
2000GMCSonomaN/A
2000OldsmobileBravadaN/ANot compatible with automatic AC systems.
1999ChevroletBlazerN/ANot compatible with automatic AC systems.
1999ChevroletC1500 SuburbanRear
1999ChevroletC2500 SuburbanRear
1999ChevroletK1500 SuburbanRear
1999ChevroletK2500 SuburbanRear
1999ChevroletS10N/A
1999GMCJimmyN/ANot compatible with automatic AC systems.
1999GMCSonomaN/A
1999OldsmobileBravadaN/ANot compatible with automatic AC systems.
1998ChevroletBlazerN/ANot compatible with automatic AC systems.
1998ChevroletC1500 SuburbanRear
1998ChevroletC2500 SuburbanRear
1998ChevroletK1500 SuburbanRear
1998ChevroletK2500 SuburbanRear
1998ChevroletS10N/A
1998GMCJimmyN/ANot compatible with automatic AC systems.
1998GMCSonomaN/A
1998OldsmobileBravadaN/ANot compatible with automatic AC systems.
1997ChevroletBlazerN/A
1997ChevroletS10N/A
1997GMCJimmyN/A
1997GMCSonomaN/A
1997OldsmobileBravadaN/A
1996ChevroletBlazerN/A
1996ChevroletS10N/A
1996GMCJimmyN/A
1996GMCSonomaN/A
1996OldsmobileBravadaN/A
1995ChevroletBlazerN/A
1995ChevroletS10N/A
1995GMCJimmyN/A
1995GMCSonomaN/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:

15094285202672BMR00783A103453-6933097004031973-005BMR30BR237BR237SBDR773MT18040RU1027RU344TRUC1021

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