Replacement hotend heating assembly kit designed for Bambu Lab A1 and A1 Mini printers. Includes thermistor and heater components in two complete sets to restore accurate temperature control and reliable heating performance when your printer's original hotend parts fail or need replacement. Key benefits Restores heating and temperature sensing: Replaces worn or failed heater and thermistor components so the hotend reaches and maintains the correct extrusion temperature. Minimizes downtime: Two sets let you one printer while keeping a spare on hand for quick swaps, reducing production interruptions. Compatible fit: Made to match the hotend assembly specifications for the Bambu A1 series and A1 Mini for a straightforward replacement. What's included and how it works Quantity: 2 complete heating assembly sets (each set contains a heater element and a thermistor compatible with Bambu A1 Series hotends). Function: The heater provides the heat required for melting filament; the thermistor measures hotend temperature and feeds data to the printer's control board for precise temperature control. Key attributes Compatibility: Designed for Bambu Lab A1 Series and Bambu A1 Mini printers. Functionality: Heater element for hotend heating plus thermistor for temperature sensing. Quantity: Two sets included, ideal for spare parts or servicing multiple printers. Purpose: Intended as a direct replacement for hotend heating assemblies on the specified models. Use cases Emergency : a failed heater or thermistor to get a Bambu A1 or A1 Mini back to reliable printing quickly. Preventive maintenance: Keep a spare set on hand to swap components during routine maintenance or before long print runs to avoid unexpected failures. Workshop/ service: Stock multiple sets to service customer machines or maintain uptime across several printers. Installation and practical notes Designed to be used as replacement parts for the Bambu A1 series hotend assembly. Follow Bambu Lab's service instructions for safe removal and installation. Proper installation and connection to the controller are required for accurate temperature readings and safe operation. What this product solves Eliminates inconsistent extrusion and print quality caused by faulty heating or temperature sensing components. Avoids long wait times for repairs by providing an onhand replacement or backup set. Compatible models Bambu Lab A1 Series Bambu A1 Mini This twoset heating assembly kit provides the essential heater and thermistor components needed to keep Bambu A1 Series and A1 Mini printers heating and printing reliably.