{"product_id":"4l60e-internal-harness-with-lock-up-sl-2003-06","title":"4L60E 4L65E Internal Wiring Harness w\/ Lock-Up TCC Solenoid Fits GM 2003-2006","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e4L60E \/ 4L65E Internal Wire Harness with Lock-Up (TCC) Solenoid — Fits GM 2003 to Early 2006\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eDirect replacement internal wiring harness with integrated torque converter clutch (lock-up) solenoid for GM 4L60E and 4L65E automatic transmissions. Plug-and-play design — no cutting, splicing, or modification required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eSymptoms This Part Helps Resolve:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTrouble code P0740 (TCC circuit malfunction)\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTrouble code P1870 (transmission component slipping)\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTrouble codes P0753 \/ P0758 (shift solenoid electrical faults)\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eNo torque converter lock-up \/ poor highway fuel economy\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHarsh, erratic, or inconsistent shifting\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTransmission stuck in limp mode (2nd gear only)\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIntermittent electrical faults from brittle, chafed, or heat-damaged internal wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eReplaces OEM \/ Reference Part Numbers:\u003c\/strong\u003e\n24234280 | 15320476 | 24222891 | 24229669 | 24298348 | 24229422 | Rostra 350-0061\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFitment — 2003 to Early 2006 4L60E \/ 4L65E Transmissions:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eMake\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eModels (2003–2006)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSilverado, Tahoe, Suburban, Avalanche, TrailBlazer, Colorado, Express, Astro, SSR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eGMC\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSierra, Yukon, Canyon, Envoy, Savana, Safari\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCadillac\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eEscalade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eHummer\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eH2, H3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eBuick\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eRainier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSaab\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e9-7x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eIMPORTANT — Please Read Before Ordering:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDoes NOT fit 1993–2002 transmissions (different case connector design)\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDoes NOT fit mid-2006 and later transmissions built with the input speed sensor (ISS) pump design — verify your pump type before purchase\u003c\/li\u003e\n \t\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 was a split production year; if your unit was built after the ISS changeover, a different harness is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\nPan removal and filter service required for access. Replacing the transmission filter and gasket at the same time is strongly recommended since the pan will already be down. Always confirm the harness connector matches your transmission case connector before installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Finish the job with Lubegard Platinum Universal ATF Protectant at refill — the red bottle helps protect solenoids and clutch packs from heat-related wear and helps restore smooth shift feel.\u003c\/p\u003e","brand":"Trans Parts Direct","offers":[{"title":"Default Title","offer_id":52425217212597,"sku":"77995B AFT","price":139.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1006\/3872\/0181\/files\/77995B-AFT-EDITED-scaled.jpg?v=1786616533","url":"https:\/\/transpartsdirect.com\/products\/4l60e-internal-harness-with-lock-up-sl-2003-06","provider":"Trans Parts Direct","version":"1.0","type":"link"}