Dorman Products 978-5502 Multi Function Switch

Part Number
Multifunction Switch

Fits: 86-05 Mack DM, 86-07 Mack MR, 08-15 Mack MRU

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Only 1 left
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Estimated Ship Date: 1 Business Day or Less
This console multi-function switch is designed to match the appearance and function of the original switch on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

BRAND: Dorman - HD Solutions


  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Ideal solution - this switch is a reliable replacement for an original part that has failed due to fatigue
  • Multi, Function, Switch, Switches, Turn Signal
  • Mack DM 2005-86, Mack MR 2007-86, Mack MRU 2015-08
  • Multifunction Switch
  • Direct replacement - this console multi-function switch is made to match the fit and performance of the original switch on specific vehicle applications
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience


Connector Color White
Connector ColorBlack
Cruise Control CancelYes
Cruise Control On/Off OperatorYes
Cruise Control ResumeYes
Cruise Control SetYes
Cruise Control Speed +/-Yes
Fog Lights OperatorNo
Hazard Lights OperatorNo
Indicator MarkingsYes
Indicator Markings ColorWhite
Latching High Beams OperatorYes
Lever IncludedYes
Main Lights OperatorNo
Momentary High Beams FlasherYes
Package Contents1 Multifunction Switch
Rear Window Washer SprayNo
Rear Window Wiper Delay ControlNo
Rear Window Wiper Speed SettingsNo
Running Lights OperatorNo
Universal Or Specific FitSpecific
Windshield Washer SprayNo
Windshield Wiper Delay ControlNo
Windshield Wiper Delay SettingsNo
Windshield Wiper Mist SettingNo
Windshield Wiper On/OffNo
Windshield Wiper Speed SettingsNo

Packaging Type: Box



  • Mack: 915Y703
  • Automann: 577.62001
  • VSM: 915Y703


  • 2008-2015 Mack MRU - Position: N/A
  • 1986-2007 Mack MR - Position: N/A
  • 1986-2005 Mack DM - Position: N/A
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