Standard Ignition 4WD Switch TCA-41
Standard Ignition 4WD Switch TCA-41 - view 2
Standard Ignition 4WD Switch TCA-41 - view 3
Standard Ignition 4WD Switch TCA-41 - view 4
Standard Ignition 4WD Switch TCA-41 - view 5
Standard Ignition 4WD Switch TCA-41
Standard Ignition 4WD Switch TCA-41 - view 2
Standard Ignition 4WD Switch TCA-41 - view 3
Standard Ignition 4WD Switch TCA-41 - view 4
Standard Ignition 4WD Switch TCA-41 - view 5

Standard Ignition 4WD Switch P/N:TCA-41

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$37.99
MPN: TCA-41
UPC: 727943133168
Item Package Quantity: 1
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Standard Ignition 4WD Switch P/N:TCA-41
Standard Ignition 4WD Switch P/N:TCA-41
$37.99

Keep your four-wheel-drive system responding on command with the Standard Ignition 4WD Switch (TCA-41). This switch handles the four-wheel-drive selection circuit and drops in as a direct-fit replacement for the 2002-2006 and 2008-2009 Chevrolet TrailBlazer, 2002-2006 Chevrolet TrailBlazer EXT, 2002-2006 and 2008-2009 GMC Envoy, 2002-2006 GMC Envoy XL, 2004-2005 GMC Envoy XUV, and 2003-2006 and 2008 Isuzu Ascender.

  • Function: carries the four-wheel-drive selection signal within the 4WD circuit, replacing a worn or failed original switch.
  • Signs it may need replacing: the four-wheel-drive system won't engage or disengage as expected, or the related dash indicator behaves inconsistently, when the switch is the cause.
  • Direct-fit: installs in place of the original switch on the listed applications.

If a failed switch is the cause of your 4WD trouble, replacing TCA-41 restores that switch function. Because these symptoms can also come from wiring, actuators, or the transfer-case controls, diagnose the system before ordering. Manufacturer part number TCA-41.

Frequently Asked Questions

What does the Standard Ignition 4WD Switch TCA-41 do?

It handles the four-wheel-drive selection circuit, carrying the switching signal used by the vehicle's 4WD system. Replacing it swaps out a worn or failed original switch.

Which vehicles does TCA-41 fit?

It's a direct-fit for the 2002-2006 and 2008-2009 Chevrolet TrailBlazer, TrailBlazer EXT, GMC Envoy, Envoy XL, Envoy XUV, and 2003-2006 and 2008 Isuzu Ascender. See the Buyer's Guide tab for the full list.

What are the signs this switch may need replacing?

The four-wheel-drive system may not engage or disengage properly, or the related indicator may act inconsistently. These signs can have other causes, so diagnose the system first.

Is TCA-41 a direct-fit replacement?

Yes. It's a direct-fit for the listed applications, installing in place of the original switch.

What is the manufacturer part number?

The manufacturer part number is TCA-41 from Standard Ignition.

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Standard Ignition 4WD Switch P/N:TCA-35

Keep your four-wheel-drive system communicating the way it should with the Standard Ignition 4WD Switch, MPN TCA-35. This electrical switch is a direct-fit replacement for a range of GM 4WD trucks...
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