Western Star Turn Signal Switches

VSM's OEM replacement turn signal switches for Western Star heavy-duty trucks feature modular plug-in harnesses that allow OEM replacements without rewiring for virtually every model truck. They are highly reliable, having survived over one million cycles and proven cost effective under actual driving tests.

  • Exceeds Class A, SAE, QQC, and FMVSS108 specs
  • Heavy duty unitized construction
  • Positive detent for better "driver feel" when signaling
  • Integrated stop lamp circuitry

VSM: 918Y994 / Western Star: 84401-3429

Product Specifications

VSM heavy-duty control switch 918Y994. Replaces Western Star 84401-3429.
  • Direct replacement for Western Star 84401-3429.
  • OEM Engineered signal switch for multiple Western Star truck applications.
  • Control switch wire leads protected by convoluted tubing.
  • Factory-matched connectors allow for plug-and-play control switch replacement.
  • Control switch assembled from rigid VSM 900 switch body.

More Images (Click to enlarge)

Accessories

VSM heavy-duty control switch 918Y994. Replaces Western Star 84401-3429. VSM heavy-duty control switch 918Y994. Replaces Western Star 84401-3429. VSM heavy-duty control switch 918Y994. Replaces Western Star 84401-3429. Original fit connectors allow for direct replacement of Western Star 84401-3429.

VSM: 918Y116 / Western Star: 84401-3421

Product Specifications

VSM heavy-duty control switch 918Y116. Replaces Western Star 84401-3421.
  • Direct replacement for Western Star 84401-3421.
  • OEM Engineered signal switch for multiple Western Star truck applications.
  • Control switch wire leads protected by convoluted tubing.
  • Factory-matched connectors allow for plug-and-play control switch replacement.
  • Control switch assembled from rigid VSM 900 switch body.

More Images (Click to enlarge)

Accessories

VSM heavy-duty control switch 918Y116. Replaces Western Star 84401-3421. VSM heavy-duty control switch 918Y116. Replaces Western Star 84401-3421. VSM heavy-duty control switch 918Y116. Replaces Western Star 84401-3421. Original fit connectors allow for direct replacement of Western Star 84401-3421.