OE Quality
60-Day Returns

Standard Ignition WP640 Windshield Wiper Switch
Overview of Standard Ignition Wiper Switch WP640
The Standard Ignition WP640 wiper switch is designed for precise control of windshield wipers on select Lexus models. Engineered for direct attachment and featuring a durable black plastic finish, this new wiper switch offers reliable operation for your Lexus GS, IS, and RC series vehicles.
- Direct attachment method for secure installation
- Black plastic finish with rectangular female connector
- 3 connectors with 2 connector cavities and 22 blade and pin terminals
- Supports 3 wiper delay settings and 4 wiper speed settings
- Compatible with Lexus GS200t, GS350, GS F, IS200t, IS250, IS350, RC200t, RC300, RC350, and RC F
Detailed Product Description
The Standard Ignition WP640 wiper switch is a new replacement part designed specifically for various Lexus models including the GS200t, GS350, GS F, IS200t, IS250, IS350, RC200t, RC300, RC350, and RC F. This switch features a direct attachment method ensuring a secure fit and easy installation. Its black plastic finish provides durability and resistance to wear. The switch includes a female rectangular connector with three connectors and two cavities, equipped with 22 blade and pin terminals for reliable electrical connections.
With 3 wiper delay settings and 4 wiper speed settings, the WP640 allows for customizable windshield wiper operation to suit different weather conditions. This switch does not include cruise control, fog light, or turn signal functions, focusing solely on wiper control for streamlined functionality.
Common Applications and Issues Addressed
- Replacement for faulty or unresponsive wiper switch in Lexus GS and IS series
- Restores proper wiper speed and delay control for improved visibility
- Fixes intermittent or non-functioning windshield wiper operation
- Resolves electrical connection issues related to worn or damaged terminals
- Upgrades worn switches to new OEM-quality components
Installation Notes and Tips
- Ensure vehicle ignition is off before beginning installation
- Disconnect the battery to prevent electrical shorts during replacement
- Remove the old wiper switch carefully to avoid damaging connectors
- Align the rectangular female connector properly for secure attachment
- Verify all 22 blade and pin terminals are fully seated before reassembly
Quality Assurance and Warranty
The Standard Ignition WP640 wiper switch is a new, OEM-quality replacement part manufactured to meet or exceed original equipment specifications. It undergoes rigorous quality control to ensure reliable performance and durability. This part is backed by Standard Ignition's limited warranty, providing coverage against defects in materials and workmanship under normal use.
| Brand | Standard Ignition |
| Part Number | WP640 |
| Attachment Method | Direct |
| Color | Black |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Cruise Control Cancel Included | No |
| Cruise Control On/Off Operator Inc | No |
| Cruise Control Resume Included | No |
| Cruise Control Set Included | No |
| Cruise Control Speed Adjustment In | No |
| Displayed | Yes |
| Finish | Plastic |
| Fog Light Operator Included | No |
| Indicator Markings Included | No |
| Latching High Beam Operator Includ | No |
| Main Light Operator Included | No |
| Momentary High Beam Flasher Includ | No |
| New or Reman | New |
| Number Of Connector Cavities | 2 |
| Number Of Wiper Delay Settings | 3 |
| Number Of Wiper Speed Settings | 4 |
| Rear Window Washer Spray Included | No |
| Rear Window Wiper Delay Control In | No |
| Rear Window Wiper Speed Setting In | No |
| Running Light Operator Included | No |
| Terminal Gender | Male |
| Terminal Type | Blade & Pin |
| Turn Signal Control Included | No |
| Turn Signal/Directional Indicator | No |
| Voltage | 12 |
| Windshield Washer Spray Included | Yes |
| Windshield Wiper Delay Setting Inc | Yes |
| Windshield Wiper Speed Setting Inc | Yes |
This part fits 28 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2018 | Lexus | GS F | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2018 | Lexus | GS350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2018 | Lexus | IS350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2018 | Lexus | RC F | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2018 | Lexus | RC300 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2018 | Lexus | RC350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2017 | Lexus | GS F | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2017 | Lexus | GS350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2017 | Lexus | IS350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2017 | Lexus | RC F | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2017 | Lexus | RC300 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2017 | Lexus | RC350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | GS F | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | GS200t | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | GS350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | IS200t | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | IS350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | RC F | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | RC200t | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | RC300 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2016 | Lexus | RC350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2015 | Lexus | IS250 | Sedan | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. |
| 2015 | Lexus | IS350 | Sedan | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. |
| 2015 | Lexus | RC F | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2015 | Lexus | RC350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. | |
| 2014 | Lexus | IS250 | Sedan | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. |
| 2014 | Lexus | IS350 | Sedan | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. |
| 2013 | Lexus | GS350 | N/A | Not compatible with vehicles equipped with Rain Sensitive Wipers. |
* 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.