Tire Pressure Monitor Sensor Assembly Dorman 974-049 - 1ATPK00042

These tire pressure monitoring system sensor assemblies are brand new, aftermarket sensors. They are designed to replace all original equipment manufacturers including:

  • Beru, Lear, Pacific, Schrader, Siemens, TRW


  • Tire pressure monitoring system sensor assembly set of 4
  • Fits all 4 wheel assemblies
  • Replaces dealer part numbers: 42753STKA02, 42753STKA03, 42753STKA04
  • Sensor assemblies consist of the following new components:
    • Tire Pressure Monitor Sensors (TPMS)
    • Attachment Screws
    • Valve Stems
    • Nickel Plated Valve Cores
    • Gaskets
    • Washers
    • Locking Nuts
    • Valve Stem Caps
  • Built to strict quality control standards
  • 100% tested prior to leaving the factory
  • New two-piece sensor design allows valve stem flexing from 5 to 26 degrees helping to eliminate breaking

Typical reasons why the sensors should be replaced:

  • Valve stem type TPMS sensors require installation of new hardware whenever the tires are changed
  • Valves leak
  • Seals leak
  • Batteries in sensors becomes weak or die (average battery life is 5 years). All sensors will eventually need to be replaced
  • Valve cores snaps off
  • Recommended to replace TPMS hardware every time the tires are removed from the rims to prevent corrosion buildup and for mounting safety of the locking nuts

These tire pressure monitoring sensors make great replacements and with the new 2 piece design allows the valve stems to be serviced separately!

48 States Only:

Due to shipping restrictions, we can only ship this to a physical address within the Contiguous U.S. (lower 48 states).

This part requires Programming to function properly.  Please consult your owners manual or qualified repair shop for proper procedure.

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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One of the features says two piece design allows for the stem and sensor to be serviced directly. Does that mean that the tire can remain on the rim during replacement? If so what is the process?
Del H on Dec 18, 2016
BEST ANSWER: When first replacing the assemblies you must remove the wheel from your rim to ensure that the base is placed properly. After installation however depending on the reason for secondary replacement you may service them individually. In some cases if it is the valve stem you would not need to remove the tire from the rim.

Vehicle Fit

  • 2007-2013 Acura MDX Tire Pressure Monitor Sensor Assembly 4 Piece Set Dorman 974-049
  • 2007-2012 Acura RDX Tire Pressure Monitor Sensor Assembly 4 Piece Set Dorman 974-049
  • 2007-2008 Acura TSX Tire Pressure Monitor Sensor Assembly 4 Piece Set Dorman 974-049
  • 2009-2013 Honda Pilot Tire Pressure Monitor Sensor Assembly 4 Piece Set Dorman 974-049

This part replaces:

  • Dorman 974-049
Only 1 left in stock
Part #: 1ATPK00042

Order must be placed by 4pm ET
Brand #: 974-049