HomeElectrical, Lighting and Body > SwitchesStandard Ignition TCA-43 4WD Switch
Part #: TCA-43

Standard Ignition TCA-43 4WD Switch

⚙️ 44 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, K2500, K3500, K1500, K1500 Suburban, K2500 Suburban, Tahoe, and Yukon
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Overview of Standard Ignition 4WD Switch TCA-43

The Standard Ignition 4WD Switch TCA-43 is designed for reliable operation in Chevrolet and GMC trucks and SUVs. This black plastic switch features a rectangular female connector and male blade terminals, ensuring secure electrical connections for your vehicle's four-wheel drive system.

  • Color: Black plastic finish for durability
  • Connector: One female rectangular connector
  • Terminals: Nine male blade terminals for stable connectivity
  • Part Number: TCA-43
  • Compatible with Chevrolet and GMC 4WD models

Detailed Product Description

The TCA-43 4WD switch from Standard Ignition is engineered to meet the electrical and mechanical requirements of Chevrolet and GMC 4WD vehicles, including K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Tahoe, and Yukon models. The switch's black plastic finish provides resistance to wear and environmental factors, while the single female rectangular connector and nine male blade terminals ensure a secure and reliable connection within the vehicle's electrical system. This switch is a direct replacement part designed to maintain proper function of the four-wheel drive system.

Common Applications and Issues Addressed

  • Restores proper engagement of 4WD system in Chevrolet K1500 and GMC Yukon
  • Resolves intermittent or non-responsive 4WD switch operation
  • Replaces worn or damaged 4WD switches in Chevrolet Tahoe and GMC K2500 Suburban
  • Eliminates electrical connection issues caused by faulty switch terminals
  • Supports consistent 4WD system control in GMC K3500 and Chevrolet K2500

Installation Notes and Tips

  • Ensure vehicle ignition is off before installation to prevent electrical shorts
  • Disconnect the battery to avoid accidental electrical discharge
  • Verify connector orientation matches the rectangular female connector on the switch
  • Check all nine male blade terminals for secure fit and no corrosion
  • Test 4WD system operation after installation to confirm proper function

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The TCA-43 4WD switch undergoes rigorous quality control to ensure durability and reliable performance in Chevrolet and GMC 4WD vehicles. Warranty coverage details are provided by Standard Ignition and typically include protection against defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberTCA-43
ColorBlack
Connector GenderFemale
Connector ShapeRectangular
ContentsSwitch
FinishPlastic
Terminal GenderMale
Terminal TypeBlade

This part fits 44 vehicles. Search below:

YearMakeModelPositionNotes
2000ChevroletK2500N/Aw/o Auto Shift Transfer Case
2000ChevroletK3500N/Aw/o Auto Shift Transfer Case
2000GMCK2500N/Aw/o Auto Shift Transfer Case
1999ChevroletK1500N/Aw/o Auto Shift Transfer Case
1999ChevroletK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1999ChevroletK2500N/Aw/o Auto Shift Transfer Case
1999ChevroletK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1999ChevroletK3500N/Aw/o Auto Shift Transfer Case
1999ChevroletTahoeN/Aw/o Auto Shift Transfer Case
1999GMCK1500N/Aw/o Auto Shift Transfer Case
1999GMCK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1999GMCK2500N/Aw/o Auto Shift Transfer Case
1999GMCK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1999GMCYukonN/Aw/o Auto Shift Transfer Case
1998ChevroletK1500N/Aw/o Auto Shift Transfer Case
1998ChevroletK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1998ChevroletK2500N/Aw/o Auto Shift Transfer Case
1998ChevroletK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1998ChevroletTahoeN/Aw/o Auto Shift Transfer Case
1998GMCK1500N/Aw/o Auto Shift Transfer Case
1998GMCK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1998GMCK2500N/Aw/o Auto Shift Transfer Case
1998GMCK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1998GMCYukonN/Aw/o Auto Shift Transfer Case
1997ChevroletK1500N/Aw/o Auto Shift Transfer Case
1997ChevroletK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1997ChevroletK2500N/Aw/o Auto Shift Transfer Case
1997ChevroletK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1997ChevroletTahoeN/Aw/o Auto Shift Transfer Case
1997GMCK1500N/Aw/o Auto Shift Transfer Case
1997GMCK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1997GMCK2500N/Aw/o Auto Shift Transfer Case
1997GMCK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1997GMCYukonN/Aw/o Auto Shift Transfer Case
1996ChevroletK1500N/Aw/o Auto Shift Transfer Case
1996ChevroletK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1996ChevroletK2500N/Aw/o Auto Shift Transfer Case
1996ChevroletK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1996ChevroletTahoeN/Aw/o Auto Shift Transfer Case
1996GMCK1500N/Aw/o Auto Shift Transfer Case
1996GMCK1500 SuburbanN/Aw/o Auto Shift Transfer Case
1996GMCK2500N/Aw/o Auto Shift Transfer Case
1996GMCK2500 SuburbanN/Aw/o Auto Shift Transfer Case
1996GMCYukonN/Aw/o Auto Shift Transfer Case

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

159697071S832853-575117307089901-154FWA128FWD55SW5814

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.