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Standard Ignition TW-91 Turn Signal Switch
Reliable Turn Signal Switch for Buick, Cadillac, and Oldsmobile
The Standard Ignition TW-91 turn signal switch is designed to provide dependable electrical control for select Buick, Cadillac, and Oldsmobile vehicles. Engineered as a new replacement part, it ensures consistent performance and compatibility with your vehicle's original specifications.
- New Standard Ignition turn signal switch, part number TW-91
- Compatible with Buick 98 and Century, Cadillac DeVille and Fleetwood models
- Features a male connector with one connector cavity
- Equipped with 13 female blade terminals for secure electrical connections
- Designed for easy installation and reliable operation
Detailed Product Features and Specifications
This turn signal switch from Standard Ignition is a direct replacement part tailored for specific GM vehicles including Buick 98 and Century, Cadillac DeVille and Fleetwood, and Oldsmobile models. The TW-91 switch includes a male connector with a single cavity, ensuring proper fitment and electrical compatibility. It has 13 female blade terminals, which provide a secure and stable connection to your vehicle's wiring harness. The blade terminal design supports efficient current flow and durability under normal operating conditions.
Common Applications and Problem Resolution
- Restores turn signal functionality in Buick 98 and Century models
- Replaces faulty or worn switches in Cadillac DeVille and Fleetwood vehicles
- Solves intermittent or non-responsive turn signal issues
- Addresses electrical connection problems caused by damaged terminals
- Eliminates erratic turn signal behavior due to switch failure
Installation Notes and Tips
Installation of the Standard Ignition TW-91 turn signal switch requires basic automotive electrical knowledge. Ensure the vehicle's battery is disconnected before beginning installation to prevent electrical shorts. The male connector with one cavity should align precisely with the vehicle's wiring harness. Verify that all 13 female blade terminals are properly seated to maintain secure electrical contact. Consult the vehicle's service manual for detailed removal and installation procedures specific to Buick, Cadillac, or Oldsmobile models.
Quality Assurance and Warranty Information
Standard Ignition manufactures the TW-91 turn signal switch to meet or exceed OEM standards for fit, form, and function. This new part undergoes quality control inspections to ensure reliable operation. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation or contact the distributor for exact warranty terms.
| Brand | Standard Ignition |
| Part Number | TW-91 |
| Connector Gender | Male |
| Displayed | Yes |
| New or Reman | New |
| Number Of Connector Cavities | 1 |
| Terminal Gender | Female |
| Terminal Type | Blade Terminals |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1992 | Buick | Century | N/A | w/o Pushbutton |
| 1991 | Buick | Century | N/A | w/o Pushbutton |
| 1989 | Cadillac | DeVille | N/A | |
| 1989 | Cadillac | Fleetwood | N/A | |
| 1989 | Oldsmobile | 98 | N/A | w/ Electronic Push Button Control |
* 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.