HomeElectrical, Lighting and Body > SwitchesStandard Ignition TW-57 Turn Signal Switch
Part #: TW-57

Standard Ignition TW-57 Turn Signal Switch

⚙️ 33 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Oldsmobile, and Buick, Eldorado, DeVille, Seville, LSS, Regency, Riviera, Commercial Chassis, Toronado, and Reatta
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Overview of Standard Ignition Turn Signal Switch TW-57

The Standard Ignition TW-57 turn signal switch is designed for reliable electrical performance in select Buick, Cadillac, and Oldsmobile vehicles. This new switch features a durable plastic finish and is engineered to meet the specific requirements of models such as the DeVille, Eldorado, and Riviera.

  • Compatible with Buick, Cadillac, and Oldsmobile models including Commercial Chassis, DeVille, Eldorado, LSS, Reatta, Regency, Riviera, Seville, and Toronado
  • New turn signal switch with part number TW-57
  • Black and white color scheme with plastic finish for durability
  • Equipped with 21 female blade terminals and 2 male connector cavities
  • Functions as a switch with male connector gender and blade terminal type

Detailed Product Description

The Standard Ignition TW-57 turn signal switch is a direct replacement part designed to restore proper signaling functions in compatible Buick, Cadillac, and Oldsmobile vehicles. Constructed with a plastic finish, this switch offers a balance of durability and lightweight design. It features 21 female blade terminals and two male connector cavities, ensuring secure and reliable electrical connections. The black and white color combination aids in easy identification during installation and maintenance. This switch is displayed and ready for immediate use, providing a straightforward solution for turn signal control.

Common Applications and Issues Addressed

  • Restores turn signal functionality in Buick DeVille and Cadillac Eldorado models
  • Resolves intermittent or non-functioning turn signals in Oldsmobile Riviera and Seville
  • Fixes electrical connection problems caused by worn or damaged switch terminals
  • Eliminates issues with turn signal lever responsiveness or failure to engage
  • Replaces faulty switches in Buick LSS and Cadillac Toronado vehicles

Installation Notes and Tips

  • Ensure vehicle ignition is off before beginning installation to prevent electrical shorts
  • Verify connector gender and terminal type compatibility with existing wiring harness
  • Handle blade terminals carefully to avoid bending or damage during installation
  • Consult vehicle service manual for specific removal and installation procedures for your Buick, Cadillac, or Oldsmobile model
  • Test turn signal operation after installation to confirm proper function

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. The TW-57 turn signal switch is a new component backed by Standard Ignition's quality standards. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberTW-57
ColorBlack, White
Connector GenderMale
DisplayedYes
FinishPlastic
FunctionsSwitch
New or RemanNew
Number Of Connector Cavities2
Terminal GenderFemale
Terminal TypeBlade Terminals

This part fits 33 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002CadillacEldoradoN/A
2001CadillacEldoradoN/A
2000CadillacEldoradoN/A
1999CadillacDeVilleN/A
1999CadillacEldoradoN/A
1998CadillacDeVilleN/A
1998CadillacEldoradoN/A
1997CadillacDeVilleN/A
1997CadillacEldoradoN/A
1997CadillacSevilleN/A
1997OldsmobileLSS3.8LV6N/Aw/o Radio Controls on Steering Wheel
1997OldsmobileRegency3.8LV6N/Aw/o Radio Controls on Steering Wheel
1996CadillacDeVilleN/A
1996CadillacEldoradoN/A
1996CadillacSevilleN/A
1996OldsmobileLSS3.8LV6N/Aw/o Radio Controls on Steering Wheel
1995CadillacDeVilleN/A
1995CadillacSevilleN/ANeutral Safety Switch with Harness - Radio Capacitor
1994CadillacDeVilleN/ANeutral Safety Switch with Harness - Radio Capacitor
1994CadillacSevilleN/ANeutral Safety Switch with Harness - Radio Capacitor
1992BuickRivieraN/A
1992CadillacCommercial Chassis4.9LV8N/Aw/ Air Bags
1992CadillacCommercial Chassis5.7LV8N/Aw/ Air Bags
1992CadillacEldoradoN/A
1992CadillacSevilleN/A
1992OldsmobileToronadoN/Aw/ Leather Steering Wheel
1991BuickReattaN/A
1991BuickRivieraN/A
1991CadillacCommercial Chassis4.9LV8N/A
1991OldsmobileToronadoN/Aw/ Leather Steering Wheel
1990BuickReattaN/A
1990BuickRivieraN/A
1990CadillacCommercial Chassis4.5LV8N/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:

190050281S142653-58631DL6326DS198S3267SM258SW1477V51-80-0012

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.