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Standard Ignition RU-344 HVAC Blower Motor Resistor - Rear
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.
| Brand | Standard Ignition |
| Part Number | RU-344 |
| Attachment Method | Bolt On |
| Coil Type | Electronic |
| Connector Gender | Female |
| Connector Shape | Rectangular, Oval |
| Hardware Included | No |
| Harness Length - cm | No wire |
| Harness Length - inches | No wire |
| Mounting Bracket(s) Included | Yes |
| Number Of Connector Cavities | 4 |
| Number Of Speeds | 3-5 Speed |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Wiring Harness Included | No |
This part fits 56 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Chevrolet | Blazer | N/A | |||
| 2005 | GMC | Jimmy | N/A | |||
| 2004 | Chevrolet | Blazer | N/A | |||
| 2004 | Chevrolet | S10 | N/A | |||
| 2004 | GMC | Jimmy | N/A | |||
| 2004 | GMC | Sonoma | 4.3L | V6 | N/A | |
| 2003 | Chevrolet | Blazer | N/A | |||
| 2003 | Chevrolet | S10 | N/A | |||
| 2003 | GMC | Jimmy | N/A | |||
| 2003 | GMC | Sonoma | N/A | |||
| 2002 | Chevrolet | Blazer | N/A | |||
| 2002 | Chevrolet | S10 | N/A | |||
| 2002 | GMC | Jimmy | N/A | |||
| 2002 | GMC | Sonoma | N/A | |||
| 2001 | Chevrolet | Blazer | N/A | Not compatible with automatic AC systems. | ||
| 2001 | Chevrolet | S10 | N/A | |||
| 2001 | GMC | Jimmy | N/A | Not compatible with automatic AC systems. | ||
| 2001 | GMC | Sonoma | N/A | |||
| 2001 | Oldsmobile | Bravada | N/A | Not compatible with automatic AC systems. | ||
| 2000 | Chevrolet | Blazer | N/A | Not compatible with automatic AC systems. | ||
| 2000 | Chevrolet | S10 | N/A | |||
| 2000 | GMC | Jimmy | N/A | Not compatible with automatic AC systems. | ||
| 2000 | GMC | Sonoma | N/A | |||
| 2000 | Oldsmobile | Bravada | N/A | Not compatible with automatic AC systems. | ||
| 1999 | Chevrolet | Blazer | N/A | Not compatible with automatic AC systems. | ||
| 1999 | Chevrolet | C1500 Suburban | Rear | |||
| 1999 | Chevrolet | C2500 Suburban | Rear | |||
| 1999 | Chevrolet | K1500 Suburban | Rear | |||
| 1999 | Chevrolet | K2500 Suburban | Rear | |||
| 1999 | Chevrolet | S10 | N/A | |||
| 1999 | GMC | Jimmy | N/A | Not compatible with automatic AC systems. | ||
| 1999 | GMC | Sonoma | N/A | |||
| 1999 | Oldsmobile | Bravada | N/A | Not compatible with automatic AC systems. | ||
| 1998 | Chevrolet | Blazer | N/A | Not compatible with automatic AC systems. | ||
| 1998 | Chevrolet | C1500 Suburban | Rear | |||
| 1998 | Chevrolet | C2500 Suburban | Rear | |||
| 1998 | Chevrolet | K1500 Suburban | Rear | |||
| 1998 | Chevrolet | K2500 Suburban | Rear | |||
| 1998 | Chevrolet | S10 | N/A | |||
| 1998 | GMC | Jimmy | N/A | Not compatible with automatic AC systems. | ||
| 1998 | GMC | Sonoma | N/A | |||
| 1998 | Oldsmobile | Bravada | N/A | Not compatible with automatic AC systems. | ||
| 1997 | Chevrolet | Blazer | N/A | |||
| 1997 | Chevrolet | S10 | N/A | |||
| 1997 | GMC | Jimmy | N/A | |||
| 1997 | GMC | Sonoma | N/A | |||
| 1997 | Oldsmobile | Bravada | N/A | |||
| 1996 | Chevrolet | Blazer | N/A | |||
| 1996 | Chevrolet | S10 | N/A | |||
| 1996 | GMC | Jimmy | N/A | |||
| 1996 | GMC | Sonoma | N/A | |||
| 1996 | Oldsmobile | Bravada | N/A | |||
| 1995 | Chevrolet | Blazer | N/A | |||
| 1995 | Chevrolet | S10 | N/A | |||
| 1995 | GMC | Jimmy | N/A | |||
| 1995 | GMC | Sonoma | N/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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.