{"product_id":"cat-et-software","title":"CAT ET Software 2026B \u0026 2026A — Caterpillar Electronic Technician","description":"\u003cp\u003e\u003cstrong\u003eCAT ET Software 2026B \/ 2026A (Caterpillar Electronic Technician) — Full Service Dealer\u003c\/strong\u003e is dealer-level diagnostic software for Caterpillar engines and machines. Choose your version above: \u003cstrong\u003e2026B is the latest release\u003c\/strong\u003e, while 2026A remains available for technicians who need that release. Both options include remote installation on one Windows PC, WinFLASH, Factory Password and technical support.\u003c\/p\u003e\n\n\u003csection data-seo-block=\"cat-et-version-options\"\u003e\n\u003ch2\u003eChoose Your CAT ET Software Version\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003cth\u003eDelivery\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCAT ET 2026B — Latest\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTechnicians who want the newest available release and current coverage\u003c\/td\u003e\n\u003ctd\u003eRemote installation via TeamViewer on 1 Windows PC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCAT ET 2026A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTechnicians who specifically require the 2026A release\u003c\/td\u003e\n\u003ctd\u003eRemote installation via TeamViewer on 1 Windows PC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eThis listing is software only.\u003c\/strong\u003e A laptop and CAT Communication Adapter are not included. Select the version before adding the product to your cart; the displayed price changes with your selection.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003ch2\u003eWhat the CAT ET Diagnostic Tool Does\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eView active and logged diagnostics\u003c\/strong\u003e (fault codes) across engine and machine systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitor real-time parameters\u003c\/strong\u003e — temperatures, pressures, speeds and sensor values\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecord and graph performance data\u003c\/strong\u003e for troubleshooting\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eView and change ECM configuration\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePerform diagnostic tests and calibrations\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate ECM software with WinFLASH\u003c\/strong\u003e (official flash files)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePrint diagnostic reports\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSupported Caterpillar Engines \u0026amp; Applications\u003c\/h2\u003e\n\u003cp\u003eCAT ET works across the electronically controlled Caterpillar range, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-highway truck engines\u003c\/strong\u003e — C7, C9, C11, C13, C15, C16, 3406E, 3126\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-highway \u0026amp; industrial\u003c\/strong\u003e — C4.4, C6.6, C7, C9, C13, C15, C18, C27, C32 and the 3400\/3500 series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachines\u003c\/strong\u003e — excavators, wheel loaders, dozers, motor graders, backhoes, articulated trucks and more\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGenerator sets and marine engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNot sure if your engine or machine is covered? Send us the model or serial number before ordering and we'll confirm.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYour selected version: CAT ET 2026B (latest) or CAT ET 2026A — Full Service Dealer\u003c\/li\u003e\n\u003cli\u003eWinFLASH function\u003c\/li\u003e\n\u003cli\u003e10-year license\u003c\/li\u003e\n\u003cli\u003eRemote installation via TeamViewer (1 PC)\u003c\/li\u003e\n\u003cli\u003eTechnical support included\u003c\/li\u003e\n\u003cli\u003eFactory Password\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCAT Electronic Technician Software Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersions:\u003c\/strong\u003e 2026B (latest) or 2026A Full Service Dealer — select above\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e approx. 10 GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegion:\u003c\/strong\u003e All regions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLanguages:\u003c\/strong\u003e English, German, Spanish, French, Italian, Portuguese, Danish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCAT Communication Adapter 3 Requirements\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCaterpillar Communication Adapter 3 (CAT Comm 3), part number 478-0235\u003c\/li\u003e\n\u003cli\u003e9-pin \/ 14-pin adapter\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThe diagnostic adapter is not included and must be purchased separately. CAT ET connects to the machine only through a compatible adapter — ask us if you need one.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eCAT ET Software System Requirements\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWindows 10 or 11 (64-bit)\u003c\/li\u003e\n\u003cli\u003eSufficient free disk space for installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat's the difference between 2026A and 2026B?\u003c\/h3\u003e\n\u003cp\u003e2026B is the newer release and the recommended choice for the newest available coverage. Choose 2026A only when you specifically need that release. Both versions are available from the version selector on this page.\u003c\/p\u003e\n\u003ch3\u003eWhich Caterpillar engines does CAT ET cover?\u003c\/h3\u003e\n\u003cp\u003eThe electronically controlled CAT range — on-highway (C7–C16, 3406E, 3126), off-highway and industrial (C4.4–C32, 3400\/3500 series), machines, gensets and marine engines. Send us your model to confirm.\u003c\/p\u003e\n\u003ch3\u003eWhat is WinFLASH?\u003c\/h3\u003e\n\u003cp\u003eWinFLASH is the function used to update (flash) Caterpillar ECM software with official flash files, keeping the control module on the current calibration.\u003c\/p\u003e\n\u003ch3\u003eIs this a CAT ET software download?\u003c\/h3\u003e\n\u003cp\u003eThe software is delivered digitally, but this product includes remote installation through TeamViewer rather than an unsupported download-only purchase. Our technician installs the CAT ET version you select, configures the required components and verifies the program opens correctly on your Windows PC.\u003c\/p\u003e\n\u003ch3\u003eWhat CAT ET software license is included?\u003c\/h3\u003e\n\u003cp\u003eThis package includes the 10-year license listed above for one Windows PC. The Caterpillar Communication Adapter is separate and is not included unless it appears as an additional product option.\u003c\/p\u003e\n\u003ch3\u003eWhat adapter do I need?\u003c\/h3\u003e\n\u003cp\u003eA CAT Communication Adapter III (478-0235) with the correct 9-pin or 14-pin cable. The adapter is not included with the software.\u003c\/p\u003e\n\u003ch3\u003eHow is it delivered?\u003c\/h3\u003e\n\u003cp\u003eRemote installation via TeamViewer, scheduled at your convenience.\u003c\/p\u003e\n\u003ch2\u003eTechnical Support\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhatsApp:\u003c\/strong\u003e \u003ca href=\"https:\/\/wa.me\/51941033487\" rel=\"noopener\"\u003e+51 941 033 487\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelegram:\u003c\/strong\u003e \u003ca href=\"https:\/\/t.me\/motorsymphdiesel\" rel=\"noopener\"\u003et.me\/motorsymphdiesel\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@motorsymphdiesel.com\"\u003einfo@motorsymphdiesel.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003csection data-seo-block=\"cat-et-resources\"\u003e\u003chr\u003e\n\u003ch2\u003eCAT ET Software Price, Download \u0026amp; Setup Resources\u003c\/h2\u003e\n\u003cp\u003eThe current CAT ET software price is displayed above and includes remote installation on one Windows PC. Our technician handles the selected CAT ET version through TeamViewer, so you do not need to configure the installation alone.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, read the \u003ca href=\"\/blogs\/technical-guides\/what-is-cat-et-caterpillar-electronic-technician-guide\"\u003ecomplete CAT ET software guide\u003c\/a\u003e, check the \u003ca href=\"\/blogs\/technical-guides\/caterpillar-fault-codes-list-mid-cid-fmi-guide\"\u003eCaterpillar fault-code guide\u003c\/a\u003e, and prepare your CAT Comm Adapter using our \u003ca href=\"\/pages\/diagnostic-adapter-drivers\"\u003ediagnostic adapter driver hub\u003c\/a\u003e.\u003c\/p\u003e\u003c\/section\u003e\u003csection data-seo-block=\"cat-et-buying-options\"\u003e\n\u003ch2\u003eChoose the Right Caterpillar Software Package\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAT ET diagnostic software:\u003c\/strong\u003e use this page when you already have a compatible CAT Communication Adapter and need live diagnostics, tests, calibrations and WinFLASH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Caterpillar software package:\u003c\/strong\u003e choose the \u003ca href=\"\/products\/caterpillar-package\"\u003eCAT ET + CAT SIS + CBT + Flash Files package\u003c\/a\u003e when you also need service information and additional Caterpillar resources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Password only:\u003c\/strong\u003e use the \u003ca href=\"\/products\/caterpillar-et-one-time-remote-service-for-18-10-digit-factory-password\"\u003eCaterpillar 10\/18-digit Factory Password service\u003c\/a\u003e if CAT ET is already installed and you only need a one-time password.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection data-seo-block=\"cat-sis-related-product\"\u003e\u003ch2\u003eNeed CAT Parts and Service Manuals?\u003c\/h2\u003e\n\u003cp\u003eCAT ET connects to the machine for live diagnostics. For offline parts illustrations, service procedures, wiring diagrams and hydraulic schematics, add \u003ca href=\"\/products\/caterpillar-sis\"\u003eCAT SIS 2021 Offline\u003c\/a\u003e to your workshop setup.\u003c\/p\u003e\u003c\/section\u003e","brand":"CATERPILLAR","offers":[{"title":"CAT ET 2026B — Latest","offer_id":53582914781549,"sku":"CAT-002","price":160.0,"currency_code":"USD","in_stock":true},{"title":"CAT ET 2026A","offer_id":53778056118637,"sku":"CAT-001","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/7279\/1149\/files\/CATERPILLAR_ET2025B_FULL_SERVICE_DEALER_FACTORY_PASSWORD.png?v=1780426591","url":"https:\/\/motorsymphdiesel.com\/products\/cat-et-software","provider":"Motorsymph Diesel","version":"1.0","type":"link"}