"lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
Select your vehicle
Vehicle Info Required to Guarantee FitAdd Vehicle

TCA-4 4WD Indicator Lamp Switch

Tap image and pinch to zoom.
$57.46Save: $23.47(41%)
Manufacturer #TCA-4
Vehicle Info Required to Guarantee FitAdd Vehicle


Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Connector Gender:
Product Fit:
Direct Fit
Quantity Sold:
Sold individually
Standard OE Replacement
Terminal Gender:
Terminal Quantity:
Terminal Type:
3-year or 36,000-mile Standard limited warranty

Vehicle Fitment Information

Vehicle Name
Fitment Information
1983-1990 Chevrolet S10 Blazer
All Submodels
All Engines
Mounted on Transfer Case
1988-1989 Chevrolet K2500
All Submodels
All Engines
1988-1989 Chevrolet K3500
All Submodels
All Engines
1988-1989 GMC K3500
8 Cyl 5.7L
On Transfer Case
1988-1989 GMC K3500
8 Cyl 6.2L
On Transfer Case
Page 1 of 73 | Showing 1 - 5 of 361 results

Product Information


Restore your ride to full function with the OEM-grade quality assurance and standard-setting performance offered by Standard’s OE replacement 4WD indicator lamp switches. Since 1919, Standard Motor Products has engineered a full line of engine management products, including ignition parts, sensors and on-board computers.

  • Design meets OE-level standards
  • Sturdily constructed in TS 16949 certified facilities
  • Broad range of import and domestic models covered
  • Put through systematic inspection to guarantee enduring performance and quality
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

Where exactly is it located on my 1998 k 1500 4WD truck ?Bonnie N.May 10, 2023
Best Answer:Hi Bonnie, I'm glad to assist you. This is located on the steering column. Click on the link below for direct ordering to take advantage of our ongoing discount and limited stocks. I hope this helps, and happy shopping. <a href="https://www.carparts.com/4wd-indicator-lamp-switch/standard/sitca4?can=CPAE1047_CSQA_20230510" target="_blank">https://www.carparts.com/4wd-indicator-lamp-switch/standard/sitca4?can=CPAE1047_CSQA_20230510</a>
Arnel E.STAFFMay 10, 2023
If the light in the dash doesn't light up showing 2 or 4wd. Will this part fix the issue? Actuator was replaced and $WD now works but dash lights out?Bob W.Jan 17, 2022
Best Answer:Hi Bob, I'm glad to assist you. Yes, this is the only part you need to replace since the 4WD actuator has been replaced already as you mentioned. Grab our sale price offer and click the link below to order today. I hope this helps. Happy shopping. <a href="https://www.carparts.com/4wd-indicator-lamp-switch/standard/sitca4?can=CPJE1043" target="_blank">https://www.carparts.com/4wd-indicator-lamp-switch/standard/sitca4?can=CPJE1043</a>
Jeonino E.STAFFJan 17, 2022