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ACI 81478 Window Regulator - Front Left
Reliable Power Window Regulator for Lexus GS Models
The ACI Window Regulator 81478 is designed to restore smooth power window operation on the front left door of select Lexus GS models. Engineered to meet or exceed OEM standards, this new window regulator ensures dependable performance and durability.
- Compatible with Lexus GS300, GS400, and GS430 front left doors
- Constructed with hardened steel gear for enhanced strength
- Power window operation type for seamless control
- Mounting hardware and motor not included
- New part that meets or exceeds original equipment manufacturer specifications
About the ACI Window Regulator Product Line
The ACI Window Regulator line focuses on delivering precise fit and reliable function for power window systems. This product line emphasizes quality materials such as hardened steel gears to ensure long-lasting operation. The 81478 part number is part of this line, designed specifically for front left door applications on Lexus GS series vehicles.
Detailed Product Description
This power window regulator features a hardened steel gear that provides durability and resistance to wear, essential for consistent window movement. It is intended for the front left mounting position and supports power window operation without including the motor or mounting hardware. The part is new and engineered to meet or exceed OEM specifications, ensuring compatibility and reliable performance on Lexus GS300, GS400, and GS430 models.
Common Issues Addressed by This Window Regulator
- Window stuck in the up or down position
- Slow or jerky window movement
- Grinding noises during window operation
- Window falling inside the door panel
- Failure of the power window to respond
Installation Notes and Tips
- Designed for front left door installation on Lexus GS300, GS400, and GS430
- Mounting hardware and motor must be reused or purchased separately
- Ensure proper alignment of the regulator gear with the window track
- Disconnect the vehicle battery before installation to avoid electrical issues
- Test window operation before reassembling the door panel
Quality Assurance and Warranty
The ACI Window Regulator 81478 is a new replacement part that meets or exceeds OEM quality standards. While mounting hardware and motor are not included, the regulator itself is manufactured with hardened steel gears for durability. Please refer to the product packaging or manufacturer documentation for specific warranty details.
| Brand | Phillips |
|---|---|
| Part Number | H7PRB2 |
| Position | Window Regulator |
| Amperage Rating | 4.58333333333333 |
| Bulb Base Type | PX26d |
| Bulb Color | Clear |
| Bulb Finish | Clear |
| Bulb Material | Glass |
| Bulb Technology | Halogen |
| Bulb Type | Vision Bulb |
| DOT Approved | Yes |
| Diameter | 0.46 |
| Filament Quantity | 1 |
| Filament Type | C-8 |
| Length | 2.32 |
| Voltage | 12 |
| Wattage | 55 |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2005 | Lexus | GS430 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2004 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2004 | Lexus | GS430 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2003 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2003 | Lexus | GS430 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2002 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2002 | Lexus | GS430 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2001 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2001 | Lexus | GS430 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2000 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2000 | Lexus | GS400 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 1999 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 1999 | Lexus | GS400 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 1998 | Lexus | GS300 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 1998 | Lexus | GS400 | Front Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
* 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.