Mack Trucks Turn Signal Switches

VSM's OEM replacement turn signal switches for Mack Trucks 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: 900Y150 / Mack Trucks: 1MR3412P2

Product Specifications

VSM heavy-duty control switch 900Y150. Replaces Mack Trucks 1MR3412P2.
  • Direct replacement for Mack Trucks 1MR3412P2.
  • OEM Engineered signal switch for multiple Mack Trucks 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.

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Accessories

VSM heavy-duty control switch 900Y150. Replaces Mack Trucks 1MR3412P2. VSM heavy-duty control switch 900Y150. Replaces Mack Trucks 1MR3412P2. VSM heavy-duty control switch 900Y150. Replaces Mack Trucks 1MR3412P2. VSM heavy-duty control switch 900Y150. Replaces Mack Trucks 1MR3412P2.

VSM: 999574 / Mack Trucks: 1MR574

Product Specifications

VSM heavy-duty control switch 999574. Replaces Mack Trucks 1MR574.
  • Direct replacement for Mack Trucks 1MR574.
  • OEM Engineered signal switch for multiple Mack Trucks truck applications.

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Accessories

VSM heavy-duty control switch 999574. Replaces Mack Trucks 1MR574. VSM heavy-duty control switch 999574. Replaces Mack Trucks 1MR574. VSM heavy-duty control switch 999574. Replaces Mack Trucks 1MR574. VSM heavy-duty control switch 999574. Replaces Mack Trucks 1MR574. VSM heavy-duty control switch 999574. Replaces Mack Trucks 1MR574.

VSM: 999575 / Mack Trucks: 1MR575A

Product Specifications

VSM heavy-duty control switch 999575. Replaces Mack Trucks 1MR575A.
  • Direct replacement for Mack Trucks 1MR575A.
  • OEM Engineered signal switch for multiple Mack Trucks truck applications.

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Accessories

VSM heavy-duty control switch 999575. Replaces Mack Trucks 1MR575A. VSM heavy-duty control switch 999575. Replaces Mack Trucks 1MR575A. VSM heavy-duty control switch 999575. Replaces Mack Trucks 1MR575A. VSM heavy-duty control switch 999575. Replaces Mack Trucks 1MR575A.

VSM: 999578 / Mack Trucks: 1MR578

Product Specifications

VSM heavy-duty control switch 999578. Replaces Mack Trucks 1MR578.
  • Direct replacement for Mack Trucks 1MR578.
  • OEM Engineered signal switch for multiple Mack Trucks truck applications.

More Images (Click to enlarge)

Accessories

VSM heavy-duty control switch 999578. Replaces Mack Trucks 1MR578. VSM heavy-duty control switch 999578. Replaces Mack Trucks 1MR578. VSM heavy-duty control switch 999578. Replaces Mack Trucks 1MR578. VSM heavy-duty control switch 999578. Replaces Mack Trucks 1MR578.