Mack CH RD Tachometer Magnetic Sensor Dorman 505-5501 - DMTSS00001

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This tachometer magnetic sensor is just what you need to get your vehicle in good working order again.


  • Brand New Dorman Tachometer Magnetic Sensor
  • Replaces dealer part number: 64MT2105M
  • 2 Wire Single Connector Plug
  • Direct replacement
  • Built to strict quality control standards

This sensor makes a great replacement and has good cost savings over a dealer unit.

Our electrical and electronic parts are subject to strict quality control testing. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Acrylonitrile, which is known to the State of California to cause cancer.  For more information, go to

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Year Make Model Description
1990-1995Mack CH Mack CH Tachometer Magnetic Sensor with Single Connector Dorman 505-5501
1987-1995Mack RD Mack RD Tachometer Magnetic Sensor with Single Connector Dorman 505-5501
Only 1 left in stock
Part #: DMTSS00001

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Brand #: 505-5501