{"product_id":"24256861-genuine-gm-remanufactured-transmission-control-module","title":"24256861 | GM Allison 1000 Transmission Control Module (TCM)","description":"\u003ch2\u003eDescription and Purpose\u003c\/h2\u003e\n\u003cp\u003eThis genuine GM remanufactured \u003cstrong\u003etransmission control module (TCM)\u003c\/strong\u003e, listed under catalog reference \u003cstrong\u003e24256861\u003c\/strong\u003e, is an electronic transmission controller for selected Chevrolet Silverado and GMC Sierra applications equipped with the \u003cstrong\u003eAllison 1000 \/ LCT1000 six-speed automatic transmission\u003c\/strong\u003e. It manages transmission operation and shift control.\u003c\/p\u003e\n\u003ch2\u003eApplication and Installation\u003c\/h2\u003e\n\u003cp\u003eConfirm the vehicle's VIN, model year, transmission configuration and original module identification before ordering. Silverado or Sierra model names, Duramax engine identification, or an Allison 1000 transmission alone do not establish compatibility. This listing does not claim universal fitment across every Allison 1000 application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProgramming and setup are required before use.\u003c\/strong\u003e This module is not advertised as plug-and-play. Arrange the correct vehicle-specific programming and installation with a qualified repair shop or dealer.\u003c\/p\u003e\n\u003cp\u003eGMPartsGiant lists \u003cstrong\u003e19435614\u003c\/strong\u003e as the service replacement for \u003cstrong\u003e24256861\u003c\/strong\u003e. This supersession does not establish unrestricted interchangeability in the reverse direction. See the dedicated Related Parts Number section for related catalog references.\u003c\/p\u003e\n\u003ch2\u003eProduct Information\u003c\/h2\u003e\n\u003cp\u003eCondition: \u003cstrong\u003eRemanufactured\u003c\/strong\u003e. Brand: \u003cstrong\u003eGeneral Motors\u003c\/strong\u003e. This listing uses the specifications and Parts Finder Q photographs from the corresponding service-replacement module. The photos show the replacement module, not a separate guarantee of the number printed on the unit supplied.\u003c\/p\u003e\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003cp\u003eA 365-day Parts Finder Q warranty applies to purchases made directly through partsfinderq.com. Warranty terms, coverage limits and exclusions apply.\u003c\/p\u003e\n\u003ch2\u003eProduct Questions \u0026amp; Answers\u003c\/h2\u003e\n\u003ch3\u003eWhich transmission is part 24256861 associated with?\u003c\/h3\u003e\n\u003cp\u003eIt is associated with the Allison 1000 \/ LCT1000 transmission family, including six-speed applications in selected Chevrolet Silverado and GMC Sierra trucks. Match the original module identification and confirm the VIN and transmission configuration before ordering.\u003c\/p\u003e\n\u003ch3\u003eDoes this transmission control module need programming?\u003c\/h3\u003e\n\u003cp\u003eYes. Programming and setup are required for the vehicle before use. Do not assume it is preprogrammed or plug-and-play; discuss the required procedure with the installer.\u003c\/p\u003e\n\u003ch3\u003eWill it fit my Duramax Silverado or Sierra?\u003c\/h3\u003e\n\u003cp\u003eThe engine name or HD model designation alone is not enough to confirm fitment. Provide the VIN, model year, transmission information and part number from the original module so the application can be checked before purchase.\u003c\/p\u003e\n\u003ch3\u003eCan a GM T14 module replace every Allison A50 TCM?\u003c\/h3\u003e\n\u003cp\u003eNo. T14 and A50 are not universally interchangeable. Allison specifically identifies GMT560 medium-duty trucks and Workhorse chassis using the GM powertrain as applications where a GM T14 is not a suitable replacement for the original A50 module. Confirm the exact original module and application rather than ordering by T14 or A50 alone.\u003c\/p\u003e\n\u003ch3\u003eHow much does transmission control module replacement cost?\u003c\/h3\u003e\n\u003cp\u003eRefer to the current product price for this module. The total replacement cost also depends on the vehicle and the installation and programming required. Ask your repair shop or dealer for a separate estimate; do not assume those services are included in the displayed product price.\u003c\/p\u003e","brand":"GM®","offers":[{"title":"Default Title","offer_id":53416283832618,"sku":"24256861","price":959.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/6566\/3530\/files\/19435614_Genuine_GM_6-Speed_TCM_Transmission_Control_Module_T14_A50_Front-left_angle.jpg?v=1763010489","url":"https:\/\/partsfinderq.com\/products\/24256861-genuine-gm-remanufactured-transmission-control-module","provider":"Parts Finder Q","version":"1.0","type":"link"}