{"product_id":"2006-2009-sierra-silverado-allison-transmission-control-module-tcm-25821029-at","title":"2006 - 2009 Sierra Silverado Allison Transmission Control Module TCM 25821029 AT","description":"\u003cp\u003eThis \u003cb\u003eAllison Transmission Control Module (TCM)\u003c\/b\u003e is a direct replacement for 2006–2009 GMC Sierra and Chevy Silverado trucks with Allison automatic transmissions. Genuine part number 25821029 manages shift timing, torque converter lockup, and transmission diagnostics.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eOEM part number 25821029\u003c\/li\u003e\n\u003cli\u003eFits 2006–2009 Sierra and Silverado with Allison transmission\u003c\/li\u003e\n\u003cli\u003eControls shift logic and torque converter engagement\u003c\/li\u003e\n\u003cli\u003eIncludes transmission diagnostics and fault monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eA faulty TCM causes harsh shifts, delayed engagement, or transmission limp mode—this replacement restores smooth, reliable shifting and fuel efficiency.\u003c\/p\u003e","brand":"eBay Import","offers":[{"title":"Default Title","offer_id":45753224233062,"sku":null,"price":935.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/4630\/9734\/files\/s-l100_953479b8-17a3-4b12-aa5a-a2fe7e4468d7.jpg?v=1781326392","url":"https:\/\/findmypart.shop\/products\/2006-2009-sierra-silverado-allison-transmission-control-module-tcm-25821029-at","provider":"Find My Part","version":"1.0","type":"link"}