{"product_id":"standard-ignition-tca166-4wd-switch","title":"Standard Ignition TCA166 4WD Switch","description":"\u003ch2\u003e4WD Selector Switch for Jeep Grand Cherokee\u003c\/h2\u003e\u003cp\u003eRestore control of the transfer case system with this Standard Ignition 4WD switch, part number TCA166. It is built with a black plastic finish and pin-plug terminals for a direct electrical connection in the dash control circuit.\u003c\/p\u003e\u003cp\u003eCompatible with 2014-2022 Jeep Grand Cherokee selector switch applications, this replacement switch is a practical choice when the original control becomes worn, intermittent, or unresponsive. The TCA166 is also referenced by part number TCA166 for easy catalog matching.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBlack finish for a clean OE-style appearance\u003c\/li\u003e\n\u003cli\u003ePlastic switch construction\u003c\/li\u003e\n\u003cli\u003eFemale and male terminal design with pin-plug connection\u003c\/li\u003e\n\u003cli\u003eTerminal layout: 9 and 3 pins\u003c\/li\u003e\n\u003cli\u003eStandard Ignition replacement part number TCA166\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition TCA166 4WD switch is a replacement electrical control component for the Jeep Grand Cherokee selector switch application. It is designed around the original terminal layout and connector style, helping maintain proper signal transfer between the switch and the vehicle’s 4WD control system. Use this part when the factory switch shows signs of wear, inconsistent engagement, or failed input response. The TCA166 part number is useful when verifying the correct replacement against existing catalog data or removed components.\u003c\/p\u003e\u003cp\u003eStandard Ignition supplies electrical replacement parts for service and repair applications, and this switch follows that approach with a straightforward OE-style form factor and connector arrangement.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNonresponsive 4WD selector input\u003c\/li\u003e\n\u003cli\u003eIntermittent transfer case mode selection\u003c\/li\u003e\n\u003cli\u003eWorn or damaged dash switch assembly\u003c\/li\u003e\n\u003cli\u003eElectrical connection issues at the switch terminals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify connector style, terminal count, and switch layout before installation. Match the removed unit to part number TCA166 and confirm the Jeep Grand Cherokee application listed above. Inspect the harness connector for corrosion or damaged pins before installing the replacement switch.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eStandard Ignition is a recognized supplier of electrical service parts, and TCA166 is built to match the specified switch configuration for the listed application.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":53503700762805,"sku":"FBHK-TCA166","price":328.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_TCA166_Fro.jpg?v=1791611163","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-tca166-4wd-switch","provider":"PartCatalog","version":"1.0","type":"link"}