Standard Ignition TCA-1 4WD Actuator
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Standard Ignition

Standard Ignition TCA-1 4WD Actuator

Brand Standard Ignition TCA-1
Connector Gender Male
Connector Shape Oval
Contents Four Wheel Drive Actuator
Harness Length - inches 10.25
Terminal Gender Male
Terminal Type Pins
Fits Chevrolet and GMC · 119 vehicles

100% tested. Verified for both mechanical and electrical switching performance.

Quality-controlled production. Built from components to finished product by experienced professionals.

4WD actuator. For dependable four-wheel-drive engagement control.

Cross-references Dorman - OE Solutions 600-100, 2-FWDA1 and 7F2001 for the same application. See all 14.

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4WD Actuator for OE-Style Driveline Control

The Standard Ignition TCA-1 4WD actuator is a direct-fit driveline switch component for select Chevrolet and GMC trucks and SUVs with a 2-pin terminal setup. It is built for accurate mechanical and electrical switching performance, helping restore reliable four-wheel drive engagement on supported applications.

Key Features

  • Standard Ignition TCA-1 4WD actuator for select GM 4x4 applications
  • Male connector with oval connector shape
  • 2 male pin terminals for OE-style electrical connection
  • 10.25-inch harness length
  • Contents: Four Wheel Drive Actuator
  • 100% tested for mechanical and electrical switching performance
  • Manufactured under a controlled quality process from components to finished product

Detailed Description

The TCA-1 is a 4WD actuator used in driveline and axle switch systems where precise engagement signals are required. Standard Ignition tests each unit for switching performance and builds it through a controlled manufacturing process to support consistent operation. This part cross-references Dorman OE Solutions 600-100 for the same application. Compatible vehicle coverage includes Chevrolet K1500, K2500, K3500, Tahoe, Blazer, and GMC K1500, K2500, K3500, Yukon, and Jimmy applications with OE-type 2-pin terminals.

Common Problems It Can Help Solve

  • Intermittent or failed 4WD engagement
  • Inconsistent transfer case switching response
  • Electrical connection issues at the actuator
  • Loss of proper front axle engagement on supported GM 4x4 systems
  • Driveline control faults tied to worn actuator switching components

Installation Notes and Tips

Verify connector style, terminal count, and harness length before installation. This part is listed for OE-type 2-pin term applications and specific 1987-1996 Chevrolet and GMC models, including Fits 1988-1995 Chevrolet K1500, N/A and Fits 1988-1995 GMC K1500, N/A. Confirm the vehicle build date where noted, such as 1996 Chevrolet K1500 and 1996 GMC K1500 coverage limited to vehicles built to 12/95. Match the actuator to the original connector and mounting configuration before service.

Quality Assurance

Standard Ignition states that this actuator is fully tested for both mechanical and electrical switching performance. It is produced under a controlled quality process from component sourcing through final assembly to support consistent fit and function on the listed Chevrolet and GMC 4WD applications.

Related reading

This part fits 119 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
1996ChevroletK15004WDN/ATo 12/95; OE Type; 2 Pin Term.
1996ChevroletK1500 Suburban4WDN/ATo 12/95; OE Type; 2 Pin Term.
1996ChevroletK25004WDN/ATo 12/95; OE Type; 2 Pin Term.
1996ChevroletK2500 Suburban4WDN/ATo 12/95; OE Type; 2 Pin Term.
1996ChevroletK35004WDN/ATo 12/95; OE Type; 2 Pin Term.
1996ChevroletTahoe4WDN/ATo 12/95; OE Type; 2 Pin Term.
1996GMCK15004WDN/ATo 12/95; OE Type; 2 Pin Term.
1996GMCK1500 Suburban4WDN/ATo 12/95; OE Type; 2 Pin Term.
1996GMCK25004WDN/ATo 12/95; OE Type; 2 Pin Term.
1996GMCK2500 Suburban4WDN/ATo 12/95; OE Type; 2 Pin Term.
1996GMCK35004WDN/ATo 12/95; OE Type; 2 Pin Term.
1996GMCYukon4WDN/ATo 12/95; OE Type; 2 Pin Term.
1995ChevroletK15004WDN/AOE Type; 2 Pin Term.
1995ChevroletK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1995ChevroletK25004WDN/AOE Type; 2 Pin Term.
1995ChevroletK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1995ChevroletK35004WDN/AOE Type; 2 Pin Term.
1995ChevroletTahoe4WDN/AOE Type; 2 Pin Term.
1995GMCK15004WDN/AOE Type; 2 Pin Term.
1995GMCK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1995GMCK25004WDN/AOE Type; 2 Pin Term.
1995GMCK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1995GMCK35004WDN/AOE Type; 2 Pin Term.
1995GMCYukon4WDN/AOE Type; 2 Pin Term.
1994ChevroletBlazer4WDN/AOE Type; 2 Pin Term.
1994ChevroletK15004WDN/AOE Type; 2 Pin Term.
1994ChevroletK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1994ChevroletK25004WDN/AOE Type; 2 Pin Term.
1994ChevroletK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1994ChevroletK35004WDN/AOE Type; 2 Pin Term.
1994GMCK15004WDN/AOE Type; 2 Pin Term.
1994GMCK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1994GMCK25004WDN/AOE Type; 2 Pin Term.
1994GMCK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1994GMCK35004WDN/AOE Type; 2 Pin Term.
1994GMCYukon4WDN/AOE Type; 2 Pin Term.
1993ChevroletBlazer4WDN/AOE Type; 2 Pin Term.
1993ChevroletK15004WDN/AOE Type; 2 Pin Term.
1993ChevroletK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1993ChevroletK25004WDN/AOE Type; 2 Pin Term.
1993ChevroletK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1993ChevroletK35004WDN/AOE Type; 2 Pin Term.
1993GMCK15004WDN/AOE Type; 2 Pin Term.
1993GMCK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1993GMCK25004WDN/AOE Type; 2 Pin Term.
1993GMCK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1993GMCK35004WDN/AOE Type; 2 Pin Term.
1993GMCYukon4WDN/AOE Type; 2 Pin Term.
1992ChevroletBlazer4WDN/AOE Type; 2 Pin Term.
1992ChevroletK15004WDN/AOE Type; 2 Pin Term.
1992ChevroletK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1992ChevroletK25004WDN/AOE Type; 2 Pin Term.
1992ChevroletK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1992ChevroletK35004WDN/AOE Type; 2 Pin Term.
1992GMCK15004WDN/AOE Type; 2 Pin Term.
1992GMCK1500 Suburban4WDN/AOE Type; 2 Pin Term.
1992GMCK25004WDN/AOE Type; 2 Pin Term.
1992GMCK2500 Suburban4WDN/AOE Type; 2 Pin Term.
1992GMCK35004WDN/AOE Type; 2 Pin Term.
1992GMCYukon4WDN/AOE Type; 2 Pin Term.
1991ChevroletBlazer4WDN/AOE Type; 2 Pin Term.
1991ChevroletK15004WDN/AOE Type; 2 Pin Term.
1991ChevroletK25004WDN/AOE Type; 2 Pin Term.
1991ChevroletK35004WDN/AOE Type; 2 Pin Term.
1991ChevroletV1500 Suburban4WDN/AOE Type; 2 Pin Term.
1991ChevroletV2500 Suburban4WDN/AOE Type; 2 Pin Term.
1991ChevroletV35004WDN/AOE Type; 2 Pin Term.
1991GMCJimmy4WDN/AOE Type; 2 Pin Term.
1991GMCK15004WDN/AOE Type; 2 Pin Term.
1991GMCK25004WDN/AOE Type; 2 Pin Term.
1991GMCK35004WDN/AOE Type; 2 Pin Term.
1991GMCS15 Jimmy4WDN/AOE Type; 2 Pin Term.
1991GMCV1500 Suburban4WDN/AOE Type; 2 Pin Term.
1991GMCV2500 Suburban4WDN/AOE Type; 2 Pin Term.
1991GMCV35004WDN/AOE Type; 2 Pin Term.
1990ChevroletBlazer4WDN/AOE Type; 2 Pin Term.
1990ChevroletK15004WDN/AOE Type; 2 Pin Term.
1990ChevroletK25004WDN/AOE Type; 2 Pin Term.
1990ChevroletK35004WDN/AOE Type; 2 Pin Term.
1990ChevroletV1500 Suburban4WDN/AOE Type; 2 Pin Term.
1990ChevroletV2500 Suburban4WDN/AOE Type; 2 Pin Term.
1990ChevroletV35004WDN/AOE Type; 2 Pin Term.
1990GMCJimmy4WDN/AOE Type; 2 Pin Term.
1990GMCK15004WDN/AOE Type; 2 Pin Term.
1990GMCK25004WDN/AOE Type; 2 Pin Term.
1990GMCK35004WDN/AOE Type; 2 Pin Term.
1990GMCS15 Jimmy4WDN/AOE Type; 2 Pin Term.
1990GMCV1500 Suburban4WDN/AOE Type; 2 Pin Term.
1990GMCV2500 Suburban4WDN/AOE Type; 2 Pin Term.
1990GMCV35004WDN/AOE Type; 2 Pin Term.
1989ChevroletBlazer4WDN/AOE Type; 2 Pin Term.
1989ChevroletK15004WDN/AOE Type; 2 Pin Term.
1989ChevroletK25004WDN/AOE Type; 2 Pin Term.
1989ChevroletK35004WDN/AOE Type; 2 Pin Term.
1989ChevroletV1500 Suburban4WDN/AOE Type; 2 Pin Term.
1989ChevroletV2500 Suburban4WDN/AOE Type; 2 Pin Term.
1989ChevroletV35004WDN/AOE Type; 2 Pin Term.
1989GMCJimmy4WDN/AOE Type; 2 Pin Term.
1989GMCK15004WDN/AOE Type; 2 Pin Term.
1989GMCK25004WDN/AOE Type; 2 Pin Term.
1989GMCK35004WDN/AOE Type; 2 Pin Term.
1989GMCS15 Jimmy4WDN/AOE Type; 2 Pin Term.
1989GMCV1500 Suburban4WDN/AOE Type; 2 Pin Term.
1989GMCV2500 Suburban4WDN/AOE Type; 2 Pin Term.
1989GMCV35004WDN/AOE Type; 2 Pin Term.
1988ChevroletK15004WDN/AOE Type; 2 Pin Term.
1988ChevroletK25004WDN/AOE Type; 2 Pin Term.
1988ChevroletK35004WDN/AOE Type; 2 Pin Term.
1988ChevroletV10 Suburban4WDN/AOE Type; 2 Pin Term.
1988ChevroletV20 Suburban4WDN/AOE Type; 2 Pin Term.
1988ChevroletV304WDN/AOE Type; 2 Pin Term.
1988GMCJimmy4WDN/AOE Type; 2 Pin Term.
1988GMCK15004WDN/AOE Type; 2 Pin Term.
1988GMCK25004WDN/AOE Type; 2 Pin Term.
1988GMCK35004WDN/AOE Type; 2 Pin Term.
1988GMCV1500 Suburban4WDN/AOE Type; 2 Pin Term.
1988GMCV2500 Suburban4WDN/AOE Type; 2 Pin Term.
1988GMCV35004WDN/AOE Type; 2 Pin Term.
1987ChevroletV304WDN/AOE Type; 2 Pin Term.
Directly replaces or cross-references 14 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 600-1002-FWDA17F200157-200160022711556973519142364ATS10FWD10FWD12FWD12SBFWDA1SW2084TCA1T