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Standard Ignition RU-630 HVAC Blower Motor Resistor
Overview of Standard Ignition HVAC Blower Motor Resistor RU-630
The Standard Ignition HVAC Blower Motor Resistor RU-630 is designed to regulate the blower motor speeds in select General Motors vehicles. This resistor supports 3 to 5 speed settings, ensuring precise control of your vehicle's heating and cooling system.
- Attachment method: Screw mount for secure installation
- Connector gender: No connector included
- Hardware and wiring harness not included
- Terminal type: 4 male blade terminals
- Compatible with multiple GM makes and models
Detailed Product Description
The RU-630 blower motor resistor from Standard Ignition is engineered to provide reliable performance in HVAC systems of Buick, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles. It features a screw attachment method for a firm and stable fitment. The resistor supports 3 to 5 blower motor speeds, allowing for variable airflow control inside the cabin. This part comes without a wiring harness or mounting brackets, so it is intended for direct replacement where existing connectors and hardware are reused. The four male blade terminals ensure proper electrical connection with the vehicle's wiring.
Compatible Vehicles and Applications
This blower motor resistor is compatible with a wide range of GM trucks and SUVs, including Chevrolet Blazer, C10, C1500, and Suburban models; GMC Jimmy, K5 Blazer, and Sierra series; Buick LeSabre and Riviera; Oldsmobile Delta 88; Pontiac Bonneville and Grand Prix; and other related models from the late 1990s and early 2000s. The RU-630 is suitable for vehicles requiring a 3-5 speed blower motor resistor with blade terminals and screw attachment.
Common Issues Addressed by RU-630 Blower Motor Resistor
- Inconsistent blower motor speeds or loss of certain speed settings
- Blower motor only working on high speed
- Intermittent or no airflow from HVAC vents
- Overheating or electrical resistance failure in blower motor circuit
- HVAC blower motor resistor failure causing climate control issues
Installation Notes and Tips
- Ensure vehicle ignition is off before installation
- Remove the old resistor by unscrewing the mounting screws
- Check the condition of the wiring harness and connectors before installing the new resistor
- Align the resistor terminals properly to avoid connection issues
- Do not attempt to install without the proper tools for screw attachment
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RU-630 blower motor resistor undergoes quality control testing to ensure durability and reliable operation. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship.
| Brand | Standard Ignition |
| Part Number | RU-630 |
| Attachment Method | Screw |
| Connector Gender | No Connector |
| Hardware Included | No |
| Harness Length - cm | No wire |
| Harness Length - inches | No wire |
| Mounting Bracket(s) Included | No |
| Number Of Speeds | 3-5 Speed |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Wiring Harness Included | No |
This part fits 163 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Chevrolet | Blazer | N/A | w/o AC; 4 Term. | ||
| 1991 | Chevrolet | R1500 Suburban | N/A | without air conditioning | ||
| 1991 | Chevrolet | R2500 Suburban | N/A | without air conditioning | ||
| 1991 | Chevrolet | R3500 | N/A | w/o AC; 4 Term. | ||
| 1991 | Chevrolet | V1500 Suburban | N/A | without air conditioning | ||
| 1991 | Chevrolet | V2500 Suburban | N/A | without air conditioning | ||
| 1991 | Chevrolet | V3500 | N/A | w/o AC; 4 Term. | ||
| 1991 | GMC | Jimmy | 6.2L | V8 | N/A | without air conditioning |
| 1991 | GMC | Jimmy | 5.7L | V8 | N/A | without air conditioning |
| 1991 | GMC | R1500 Suburban | N/A | without air conditioning | ||
| 1991 | GMC | R2500 Suburban | N/A | without air conditioning | ||
| 1991 | GMC | R3500 | N/A | w/o AC; 4 Term. | ||
| 1991 | GMC | V1500 Suburban | N/A | without air conditioning | ||
| 1991 | GMC | V2500 Suburban | N/A | without air conditioning | ||
| 1991 | GMC | V3500 | N/A | w/o AC; 4 Term. | ||
| 1990 | Chevrolet | Blazer | N/A | w/o AC; 4 Term. | ||
| 1990 | Chevrolet | R1500 Suburban | N/A | without air conditioning | ||
| 1990 | Chevrolet | R2500 Suburban | N/A | without air conditioning | ||
| 1990 | Chevrolet | R3500 | N/A | w/o AC | ||
| 1990 | Chevrolet | V1500 Suburban | N/A | without air conditioning | ||
| 1990 | Chevrolet | V2500 Suburban | N/A | without air conditioning | ||
| 1990 | Chevrolet | V3500 | N/A | w/o AC | ||
| 1990 | GMC | Jimmy | N/A | without air conditioning | ||
| 1990 | GMC | R1500 Suburban | N/A | without air conditioning | ||
| 1990 | GMC | R2500 Suburban | N/A | without air conditioning | ||
| 1990 | GMC | R3500 | N/A | w/o AC; 4 Term. | ||
| 1990 | GMC | V1500 Suburban | N/A | without air conditioning | ||
| 1990 | GMC | V2500 Suburban | N/A | without air conditioning | ||
| 1990 | GMC | V3500 | N/A | w/o AC; 4 Term. | ||
| 1989 | Chevrolet | Blazer | N/A | w/o AC; 4 Term. | ||
| 1989 | Chevrolet | R1500 Suburban | N/A | without air conditioning | ||
| 1989 | Chevrolet | R2500 | N/A | w/o AC; 4 Term. | ||
| 1989 | Chevrolet | R2500 Suburban | N/A | without air conditioning | ||
| 1989 | Chevrolet | R3500 | N/A | w/o AC; 4 Term. | ||
| 1989 | Chevrolet | V1500 Suburban | N/A | without air conditioning | ||
| 1989 | Chevrolet | V2500 Suburban | N/A | without air conditioning | ||
| 1989 | Chevrolet | V3500 | N/A | w/o AC; 4 Term. | ||
| 1989 | GMC | Jimmy | N/A | without air conditioning | ||
| 1989 | GMC | R1500 Suburban | N/A | without air conditioning | ||
| 1989 | GMC | R2500 | N/A | w/o AC; 4 Term. | ||
| 1989 | GMC | R2500 Suburban | N/A | without air conditioning | ||
| 1989 | GMC | R3500 | N/A | w/o AC; 4 Term. | ||
| 1989 | GMC | V1500 Suburban | N/A | without air conditioning | ||
| 1989 | GMC | V2500 Suburban | N/A | without air conditioning | ||
| 1989 | GMC | V3500 | N/A | w/o AC; 4 Term. | ||
| 1988 | Chevrolet | Blazer | N/A | w/o AC; 4 Term. | ||
| 1988 | Chevrolet | R10 Suburban | N/A | without air conditioning | ||
| 1988 | Chevrolet | R20 | N/A | w/o AC; 4 Term. | ||
| 1988 | Chevrolet | R20 Suburban | N/A | without air conditioning | ||
| 1988 | Chevrolet | R30 | N/A | w/o AC; 4 Term. | ||
| 1988 | Chevrolet | V10 Suburban | N/A | without air conditioning | ||
| 1988 | Chevrolet | V20 Suburban | N/A | without air conditioning | ||
| 1988 | Chevrolet | V30 | N/A | w/o AC; 4 Term. | ||
| 1988 | GMC | Jimmy | N/A | without air conditioning | ||
| 1988 | GMC | R1500 Suburban | N/A | without air conditioning | ||
| 1988 | GMC | R2500 | N/A | w/o AC; 4 Term. | ||
| 1988 | GMC | R2500 Suburban | N/A | without air conditioning | ||
| 1988 | GMC | R3500 | N/A | w/o AC; 4 Term. | ||
| 1988 | GMC | V1500 Suburban | N/A | without air conditioning | ||
| 1988 | GMC | V2500 Suburban | N/A | without air conditioning | ||
| 1988 | GMC | V3500 | N/A | w/o AC; 4 Term. | ||
| 1987 | Chevrolet | Blazer | N/A | w/o AC; 4 Term. | ||
| 1987 | Chevrolet | R10 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | Chevrolet | R20 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | Chevrolet | V10 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | Chevrolet | V20 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | Jimmy | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | R1500 | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | R1500 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | R2500 | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | R2500 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | R3500 | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | V1500 | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | V1500 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | V2500 | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | V2500 Suburban | N/A | w/o AC; 4 Term. | ||
| 1987 | GMC | V3500 | N/A | w/o AC; 4 Term. | ||
| 1986 | Chevrolet | C10 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1986 | Chevrolet | C20 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1986 | Chevrolet | C30 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1986 | Chevrolet | K10 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1986 | Chevrolet | K20 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1986 | Chevrolet | K30 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1986 | GMC | C1500 | N/A | w/o AC; 4 Term. | ||
| 1986 | GMC | C2500 | N/A | w/o AC; 4 Term. | ||
| 1986 | GMC | C3500 | N/A | w/o AC; 4 Term. | ||
| 1986 | GMC | K1500 | N/A | w/o AC; 4 Term. | ||
| 1986 | GMC | K2500 | N/A | w/o AC; 4 Term. | ||
| 1986 | GMC | K3500 | N/A | w/o AC; 4 Term. | ||
| 1985 | Chevrolet | C10 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1985 | Chevrolet | C20 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1985 | Chevrolet | C30 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1985 | Chevrolet | K10 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1985 | Chevrolet | K20 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1985 | Chevrolet | K30 | N/A | w/o AC; w/ Heavy Duty Heater | ||
| 1985 | GMC | C1500 | N/A | w/o AC; 4 Term. | ||
| 1985 | GMC | C2500 | N/A | w/o AC; 4 Term. | ||
| 1985 | GMC | C3500 | N/A | w/o AC; 4 Term. | ||
| 1985 | GMC | K1500 | N/A | w/o AC; 4 Term. | ||
| 1985 | GMC | K2500 | N/A | w/o AC; 4 Term. | ||
| 1985 | GMC | K3500 | N/A | w/o AC; 4 Term. | ||
| 1984 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1984 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1984 | GMC | S15 Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1983 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1983 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1983 | GMC | S15 Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1982 | Chevrolet | C10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1982 | Chevrolet | C20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1982 | Chevrolet | K10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1982 | Chevrolet | K20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1982 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1982 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1981 | Chevrolet | C10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1981 | Chevrolet | C20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1981 | Chevrolet | K10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1981 | Chevrolet | K20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1981 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1981 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1980 | Chevrolet | C10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1980 | Chevrolet | C20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1980 | Chevrolet | K10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1980 | Chevrolet | K20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1980 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1980 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1979 | Chevrolet | C10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1979 | Chevrolet | C20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1979 | Chevrolet | K10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1979 | Chevrolet | K20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1979 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1979 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1978 | Oldsmobile | Toronado | N/A | |||
| 1977 | Chevrolet | C10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1977 | Chevrolet | C20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1977 | Chevrolet | K10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1977 | Chevrolet | K20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1977 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1977 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1977 | Oldsmobile | Toronado | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1976 | Buick | LeSabre | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1976 | Buick | Riviera | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1976 | Chevrolet | C10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1976 | Chevrolet | C20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1976 | Chevrolet | Caprice | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1976 | Chevrolet | K10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1976 | Chevrolet | K20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1976 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1976 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1976 | Oldsmobile | 98 | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1976 | Oldsmobile | Custom Cruiser | 7.5L | V8 | N/A | |
| 1976 | Oldsmobile | Delta 88 | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1976 | Oldsmobile | Toronado | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1976 | Pontiac | Bonneville | N/A | HVAC Blower Motor Resistor Harness with AC - Voltage Regulator | ||
| 1975 | Chevrolet | C10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1975 | Chevrolet | C20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1975 | Chevrolet | K10 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1975 | Chevrolet | K20 Suburban | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1975 | Chevrolet | K5 Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1975 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1974 | Chevrolet | Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1974 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1973 | Chevrolet | Blazer | N/A | w/ Heavy Duty Heater; w/ AC | ||
| 1973 | GMC | Jimmy | N/A | w/ Heavy Duty Heater; w/ AC |
* 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.